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		<h1>THÉP ỐNG ĐÚC JIS G3455</h1>
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			<li>Thứ sáu - 20/12/2019 10:06</li>
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			<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif"><strong>ĐỊNH DANH THÉP ỐNG ĐÚC&nbsp;JIS G3455</strong><br  />
Tiêu chuẩn: JIS G3455 được đưa ra bởi phòng tiêu chuẩn công nghiệp Nhật Bản<br  />
Thép ống đúc carbon áp lực cao JIS G3455 bao gồm các mác thép: thép ống STS370, STS410, STS480</span></span></span></span></span></span></span>
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			<td style="border:solid windowtext 1.0pt; width:148.6pt; padding:0cm 5.4pt 0cm 5.4pt" valign="top" width="198">&nbsp;</td>
			<td style="border:solid windowtext 1.0pt; width:498.9pt; border-left:none; padding:0cm 5.4pt 0cm 5.4pt" valign="top" width="665"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Tiêu chuẩn cũ</span></span></span></span></span></span></td>
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			<td style="border:solid windowtext 1.0pt; width:148.6pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt" valign="top" width="198"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">thép ống đúc STS370, </span></span></span></span></span></span></td>
			<td style="border-bottom:solid windowtext 1.0pt; width:498.9pt; border-top:none; border-left:none; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt" valign="top" width="665"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">thép ống đúc&nbsp; STS38</span></span></span></span></span></span></td>
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			<td style="border:solid windowtext 1.0pt; width:148.6pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt" valign="top" width="198"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">thép ống đúc STS410,</span></span></span></span></span></span></td>
			<td style="border-bottom:solid windowtext 1.0pt; width:498.9pt; border-top:none; border-left:none; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt" valign="top" width="665"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">thép ống đúc STS42</span></span></span></span></span></span></td>
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			<td style="border:solid windowtext 1.0pt; width:148.6pt; border-top:none; padding:0cm 5.4pt 0cm 5.4pt" valign="top" width="198"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">thép ống đúc STS480</span></span></span></span></span></span></td>
			<td style="border-bottom:solid windowtext 1.0pt; width:498.9pt; border-top:none; border-left:none; border-right:solid windowtext 1.0pt; padding:0cm 5.4pt 0cm 5.4pt" valign="top" width="665"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">thép ống đúc STS49</span></span></span></span></span></span></td>
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<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif"><strong>Ứng dụng THÉP ỐNG ĐÚC&nbsp;JIS G3455:</strong><br  />
thép ống đúc áp lực cao JIS G3455 được sử dụng chủ yếu trong môi trường yêu cầu áp lực cao, đường ống áp lực với nhiệt độ dưới 350<sup>0</sup>C. </span></span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Áp lực này được sử dụng trong môi trường lò hơi, điện khí, công nghiệp điện, hoá dầu, hoá chất, bồn chưa, xây dựng, xây tầu thuyền, công nghiệp khai thác dầu khí ngoài khơi</span></span></span></span></span></span></span><br  />
<br  />
<strong><span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Ưu điểm&nbsp;THÉP ỐNG ĐÚC&nbsp;JIS G3455</span></span></span></span></span></span></span></strong><br  />
<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Thép chế tạo ống JIS G3455 yêu cầu cung cấp phôi ống tinh khiết cho các nhà máy chế biến ống thép và đảm bảo chất lượng cao của ống thép carbon áp suất cao. Sự kiểm soát đặc biệt của công nghệ cán tiên tiến của Nhật Bản, ống thép cao áp của chúng tôi sở hữu phạm vi dung sai nhỏ hơn so với các nhà sản xuất khác.</span></span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Lò xử lý oxy hóa và không oxy hóa vi mô duy trì nhiệt độ dưới 5&nbsp; C. Không có lớp oxit nào trên nền ống riêng của chúng. Điều này cũng góp phần vào bề mặt chất lượng cao, bề mặt mịn và hiệu suất ổn định của ống thép carbon.</span></span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Nhà máy cũng cấu hình một trung tâm thử nghiệm vật lý và hóa học chuyên nghiệp với các nhân viên kỹ thuật và thử nghiệm chuyên nghiệp và thiết bị thử nghiệm tiên tiến quốc tế để thử nghiệm các ống thép một cách khắc nghiệt. Chúng tôi sở hữu máy quang phổ đọc trực tiếp toàn phổ Đức, kính hiển vi luyện kim Nhật Bản, máy kiểm tra tác động, máy kiểm tra độ bền kéo, máy kiểm tra phổ điện điều khiển bằng thủy lực điều khiển bằng máy tính kết hợp với nhiều dụng cụ máy móc. Họ có thể thực hiện kéo, vẩy, làm phẳng, uốn cong cùng với các thử nghiệm vật lý khác cho ống thép carbon nếu bạn muốn đảm bảo hiệu suất ổn định của nó.</span></span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Đóng gói đóng gói ống thép áp lực cao của chúng tôi trong trần, bó, thùng hoặc thùng bảo vệ ở cả hai bên của ống. Chúng tôi cũng có thể đóng gói sản phẩm theo luật của khách hàng.</span></span></span></span></span></span></span><br  />
<br  />
<strong><span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">1. TÍNH CHẤT CƠ LÝ CỦA THÉP ỐNG ĐÚC JIS G3455</span></span></span></span></span></span></span></strong>

<table class="Table" style="width:689.25pt; border-collapse:collapse; border:none" width="919">
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			<td rowspan="3" style="border-bottom:none; border-top:solid white 1.0pt; border-left:solid white 1.0pt; border-right:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mức thép</span></span></span></span></span></span></td>
			<td rowspan="3" style="border:none; border-top:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Độ bền kéo (N/mm<sup>2</sup>)</span></span></span></span></span></span></td>
			<td rowspan="3" style="border:none; width:100.3pt; border-top:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="134"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Điểm chảy (N/mm<sup>2</sup>)</span></span></span></span></span></span></td>
			<td colspan="4" style="border-bottom:none; width:373.9pt; border-top:solid white 1.0pt; border-left:none; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="499"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Độ dãn dài(%)</span></span></span></span></span></span></td>
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			<td style="border:none; width:88.15pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="118"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mẫu 11;</span></span></span></span></span></span><br  />
			<span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mẫu 12</span></span></span></span></span></span></td>
			<td style="border:none; width:85.15pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="114"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mẫu 5</span></span></span></span></span></span></td>
			<td colspan="2" style="border:none; width:200.6pt; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="267"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mẫu 4</span></span></span></span></span></span></td>
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			<td style="border:none; width:88.15pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="118"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Chiều dài</span></span></span></span></span></span></td>
			<td style="border:none; width:85.15pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="114"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Chiều rộng</span></span></span></span></span></span></td>
			<td style="border:none; width:77.95pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="104"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Chiều dài</span></span></span></span></span></span></td>
			<td style="border:none; width:122.65pt; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="164"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Chiều rộng</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border:none; border-left:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">thép ống đúc STS370</span></span></span></span></span></span></td>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 370</span></span></span></span></span></span></td>
			<td style="border:none; width:100.3pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="134"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 215</span></span></span></span></span></span></td>
			<td style="border:none; width:88.15pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="118"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 30</span></span></span></span></span></span></td>
			<td style="border:none; width:85.15pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="114"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 25</span></span></span></span></span></span></td>
			<td style="border:none; width:77.95pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="104"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 28</span></span></span></span></span></span></td>
			<td style="border:none; width:122.65pt; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="164"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 23</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border:none; border-left:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">thép ống đúc STS410</span></span></span></span></span></span></td>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 410</span></span></span></span></span></span></td>
			<td style="border:none; width:100.3pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="134"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 245</span></span></span></span></span></span></td>
			<td style="border:none; width:88.15pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="118"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 25</span></span></span></span></span></span></td>
			<td style="border:none; width:85.15pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="114"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 20</span></span></span></span></span></span></td>
			<td style="border:none; width:77.95pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="104"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 24</span></span></span></span></span></span></td>
			<td style="border:none; width:122.65pt; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="164"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 19</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border-bottom:solid white 1.0pt; border-top:none; border-left:solid white 1.0pt; border-right:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">thép ống đúc STS480</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 480</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:100.3pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="134"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 275</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:88.15pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="118"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 25</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:85.15pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="114"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 20</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:77.95pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="104"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 22</span></span></span></span></span></span></td>
			<td style="border-bottom:solid white 1.0pt; width:122.65pt; border-top:none; border-left:none; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="164"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 17</span></span></span></span></span></span></td>
		</tr>
	</tbody>
</table>
<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><b><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Ghi chú:</span></span></span></b>&nbsp;</span></span></span></span><br  />
<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">1.thép ống đúc áp lực cao với độ dày dưới 8mm thì sử dụng mẫu 12 hoặc mẫu 5 để thử nghiệm tính chất cơ lý. Độ dãn dài sẽ giảm 1.5% giá trị trong bảng nếu giảm độ dày 1mm. Giá trị sẽ xoay quanh trong bảng JIS Z8401</span></span></span></span></span></span></span><br  />
<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">2. độ dãn dài ở trên thì không thích hợp cho thép ống đúc carbon với đường kính nhỏ hơn 40mm<br  />
3. Khi chúng ta sử dụng ống hàn điện trở kháng, cũng có thể sử dụng mẫu 12 hoặc mẫu 5. Với ống đúc độ dày trên 8mm, độ dãn dài của mẫu 12 hoặc mẫu 5 càn phải tính toán</span></span></span></span></span></span></span><br  />
&nbsp;
<table class="Table" style="width:689.25pt; border-collapse:collapse; border:none" width="919">
	<tbody>
		<tr>
			<td rowspan="2" style="border-bottom:none; width:77.6pt; border-top:solid white 1.0pt; border-left:solid white 1.0pt; border-right:none; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="103"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mức thép</span></span></span></span></span></span></td>
			<td rowspan="2" style="border:none; width:70.85pt; border-top:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mẫu thử nghiệm</span></span></span></span></span></span></td>
			<td colspan="7" style="border-bottom:none; width:540.8pt; border-top:solid white 1.0pt; border-left:none; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="721"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Độ dãn dài biên đổi theo độ dày. (%)</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border:none; width:70.9pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="95"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＞</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">7~</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＜</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">8</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＞</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">6~</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＜</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">7</span></span></span></span></span></span></td>
			<td style="border:none; width:63.8pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="85"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＞</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">5~</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＜</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">6</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＞</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">4~</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＜</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">5</span></span></span></span></span></span></td>
			<td style="border:none; width:78.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="104"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＞</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">3~</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＜</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">4</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＞</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">2~</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＜</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">3</span></span></span></span></span></span></td>
			<td style="border:none; width:115.55pt; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="154"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＞</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">1~</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＜</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">2</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td rowspan="2" style="border:none; width:77.6pt; border-left:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="103"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">thép ống đúc&nbsp;STS370</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mẫu 12</span></span></span></span></span></span></td>
			<td style="border:none; width:70.9pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="95"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">30</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">28</span></span></span></span></span></span></td>
			<td style="border:none; width:63.8pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="85"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">27</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">26</span></span></span></span></span></span></td>
			<td style="border:none; width:78.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="104"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">24</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">22</span></span></span></span></span></span></td>
			<td style="border:none; width:115.55pt; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="154"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">21</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mẫu 5</span></span></span></span></span></span></td>
			<td style="border:none; width:70.9pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="95"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">25</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">24</span></span></span></span></span></span></td>
			<td style="border:none; width:63.8pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="85"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">22</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">20</span></span></span></span></span></span></td>
			<td style="border:none; width:78.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="104"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">19</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">18</span></span></span></span></span></span></td>
			<td style="border:none; width:115.55pt; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="154"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">16</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td rowspan="2" style="border-bottom:solid white 1.0pt; width:77.6pt; border-top:none; border-left:solid white 1.0pt; border-right:none; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="103"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">thép ống đúc&nbsp;STS410, 480</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mẫu 12</span></span></span></span></span></span></td>
			<td style="border:none; width:70.9pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="95"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">25</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">24</span></span></span></span></span></span></td>
			<td style="border:none; width:63.8pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="85"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">22</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">20</span></span></span></span></span></span></td>
			<td style="border:none; width:78.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="104"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">19</span></span></span></span></span></span></td>
			<td style="border:none; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">18</span></span></span></span></span></span></td>
			<td style="border:none; width:115.55pt; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="154"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">16</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border:none; border-bottom:solid white 1.0pt; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mẫu 5</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:70.9pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="95"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">20</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">18</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:63.8pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="85"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">17</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">16</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:78.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="104"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">14</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:70.85pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="94"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">12</span></span></span></span></span></span></td>
			<td style="border-bottom:solid white 1.0pt; width:115.55pt; border-top:none; border-left:none; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="154"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">11</span></span></span></span></span></span></td>
		</tr>
	</tbody>
</table>
<strong><span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">2. THÀNH PHẦN HOÁ HỌC CỦA THÉP ỐNG JIS G3455(Unit: %)</span></span></span></span></span></span></span></strong>

<table class="Table" style="width:689.25pt; border-collapse:collapse; border:none" width="919">
	<tbody>
		<tr>
			<td style="border-bottom:none; border-top:solid white 1.0pt; border-left:solid white 1.0pt; border-right:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mức thép</span></span></span></span></span></span></td>
			<td style="border:none; width:61.6pt; border-top:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="82"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">C</span></span></span></span></span></span></td>
			<td style="border:none; width:85.0pt; border-top:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="113"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Si</span></span></span></span></span></span></td>
			<td style="border:none; width:99.2pt; border-top:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="132"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Mn</span></span></span></span></span></span></td>
			<td style="border:none; width:3.0cm; border-top:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="113"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">P</span></span></span></span></span></span></td>
			<td style="border-bottom:none; width:228.95pt; border-top:solid white 1.0pt; border-left:none; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="305"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">S</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border:none; border-left:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Thép ống STS370</span></span></span></span></span></span></td>
			<td style="border:none; width:61.6pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="82"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≤ 0.25</span></span></span></span></span></span></td>
			<td style="border:none; width:85.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="113"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">0.10-0.35</span></span></span></span></span></span></td>
			<td style="border:none; width:99.2pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="132"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">0.30-1.10</span></span></span></span></span></span></td>
			<td style="border:none; width:3.0cm; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="113"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≤ 0.035</span></span></span></span></span></span></td>
			<td style="border:none; width:228.95pt; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="305"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≤ 0.035</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border:none; border-left:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Thép ống STS410</span></span></span></span></span></span></td>
			<td style="border:none; width:61.6pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="82"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≤ 0.30</span></span></span></span></span></span></td>
			<td style="border:none; width:85.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="113"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">0.10-0.35</span></span></span></span></span></span></td>
			<td style="border:none; width:99.2pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="132"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">0.30-1.40</span></span></span></span></span></span></td>
			<td style="border:none; width:3.0cm; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="113"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≤ 0.035</span></span></span></span></span></span></td>
			<td style="border:none; width:228.95pt; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="305"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≤ 0.035</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border-bottom:solid white 1.0pt; border-top:none; border-left:solid white 1.0pt; border-right:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Thép ống STS480</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:61.6pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="82"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≤ 0.33</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:85.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="113"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">0.10-0.35</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:99.2pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="132"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">0.30-1.50</span></span></span></span></span></span></td>
			<td style="border:none; border-bottom:solid white 1.0pt; width:3.0cm; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="113"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≤ 0.035</span></span></span></span></span></span></td>
			<td style="border-bottom:solid white 1.0pt; width:228.95pt; border-top:none; border-left:none; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt" width="305"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≤ 0.035</span></span></span></span></span></span></td>
		</tr>
	</tbody>
</table>
<br  />
<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">3.<strong> Độ lệch cho phép của đường kính ngoài và độ dày THÉP ỐNG ĐÚC&nbsp;JIS G3455</strong></span></span></span></span></span></span></span>

<table class="Table" style="width:689.25pt; border-collapse:collapse; border:none" width="919">
	<tbody>
		<tr>
			<td style="border-bottom:none; border-top:solid white 1.0pt; border-left:solid white 1.0pt; border-right:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Dạng</span></span></span></span></span></span></td>
			<td colspan="2" style="border:none; border-top:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Độ lệch cho phép đường kính ngoài</span></span></span></span></span></span></td>
			<td colspan="3" style="border-bottom:none; border-top:solid white 1.0pt; border-left:none; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Độ lệch cho phép độ dày</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td rowspan="5" style="border:none; border-left:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Thép ống đúc liền mạch cán nóng</span></span></span></span></span></span></td>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＜</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">50 mm</span></span></span></span></span></span></td>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">± 0.5 mm</span></span></span></span></span></span></td>
			<td rowspan="5" style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＜</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif"> 4 mm ≥ 4mm</span></span></span></span></span></span></td>
			<td rowspan="5" style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">± 0.5 mm ±12.5%</span></span></span></span></span></span></td>
			<td rowspan="5" style="border:none; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≤ 20% của độ dày</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 50mm~</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＜</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">160mm</span></span></span></span></span></span></td>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">± 1%</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 160mm~≤ 200 mm</span></span></span></span></span></span></td>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">± 1.6 mm</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≥ 200 mm</span></span></span></span></span></span></td>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">± 0.8%</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td colspan="2" style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Với đường kính lớn hơn 350mm, độ lệch cho phép +-5%</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td rowspan="2" style="border-bottom:solid white 1.0pt; border-top:none; border-left:solid white 1.0pt; border-right:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">Thép ốn đúc cán nguội và thép ống hàn trở kháng</span></span></span></span></span></span></td>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">≤ 40 mm</span></span></span></span></span></span></td>
			<td style="border:none; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">± 0.03 mm</span></span></span></span></span></span></td>
			<td rowspan="2" style="border:none; border-bottom:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;MS Gothic&#039;">＜</span></span></span><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif"> 2 mm ≥ 2 mm</span></span></span></span></span></span></td>
			<td rowspan="2" style="border:none; border-bottom:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">± 0.2 mm ± 10%</span></span></span></span></span></span></td>
			<td rowspan="2" style="border-bottom:solid white 1.0pt; border-top:none; border-left:none; border-right:solid white 1.0pt; padding:3.75pt 3.75pt 3.75pt 3.75pt"><span style="font-size:11pt"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif">-</span></span></span></span></span></span></td>
		</tr>
		<tr>
			<td style="border:none; border-bottom:solid white 1.0pt; padding:0cm 0cm 0cm 0cm">&nbsp;</td>
			<td style="border:none; border-bottom:solid white 1.0pt; padding:0cm 0cm 0cm 0cm">&nbsp;</td>
		</tr>
	</tbody>
</table>
<span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif">&nbsp;</span></span></span></span><br  />
<span style="font-size:16px;"><strong>BẢNG KÍCH THƯỚC&nbsp;</strong></span><span style="font-size:11pt"><span style="background:white"><span style="line-height:150%"><span style="font-family:Calibri,sans-serif"><span style="font-size:16.0pt"><span style="line-height:150%"><span style="font-family:&#039;Times New Roman&#039;,serif"><strong>THÉP ỐNG ĐÚC&nbsp;JIS G3455</strong></span></span></span></span></span></span></span><br  />
<br  />
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