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		<h1>THÉP TẤM SM490 &#40;SM490A, SM490B, SM490C&#41;</h1>
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			<li>Thứ sáu - 23/11/2018 18:27</li>
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			<h2>Thép tấm SM490A, SM490B, SM490C là thép tấm carbon hợp kim thấp cường độ cao được sản xuất theo quy chiếu tiêu chuẩn JIS G3106 của Nhật Bản.</h2>
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			<h2>THÉP TẤM JIS G3106 SM490</h2>
<strong>Ứng dụng</strong>: chủ yếu trong nồi hơi, lò hơi, đóng tàu, cơ khí chế tạo máy…<br  />
&nbsp;<br  />
<strong>&nbsp;Định danh</strong>

<table border="1" cellpadding="0" cellspacing="0">
	<tbody>
		<tr>
			<td>Mác thép</td>
			<td><strong>JIS G3106&nbsp;SM490A</strong></td>
		</tr>
		<tr>
			<td>Kích thước (mm)</td>
			<td>Độ dày: &nbsp;6 mm - &nbsp;300mm,<br  />
			Chiều rộng: 1500 mm - &nbsp;4050mm<br  />
			Dài: 3000 – 12000mm</td>
		</tr>
		<tr>
			<td>Tiêu chuẩn</td>
			<td>JIS G3106 thép tấm cuốn cho kết cấu hàn</td>
		</tr>
	</tbody>
</table>
&nbsp;<br  />
&nbsp;<br  />
<strong>Mác thép tương đương</strong>

<table border="1" cellpadding="0" cellspacing="0" width="681">
	<tbody>
		<tr>
			<td colspan="9" nowrap="nowrap">Mác thép tương đương&nbsp;SM490A/B/C</td>
		</tr>
		<tr>
			<td nowrap="nowrap">Châu Âu</td>
			<td nowrap="nowrap">Bỉ</td>
			<td nowrap="nowrap">Đức</td>
			<td nowrap="nowrap">Pháp</td>
			<td nowrap="nowrap">Italy</td>
			<td nowrap="nowrap">Thụy Điển</td>
			<td nowrap="nowrap">Ấn Độ</td>
			<td nowrap="nowrap">Mỹ</td>
			<td>Anh</td>
		</tr>
		<tr>
			<td nowrap="nowrap">S355JR</td>
			<td nowrap="nowrap">AE 355 B</td>
			<td nowrap="nowrap">&nbsp;</td>
			<td nowrap="nowrap">E 36-2</td>
			<td nowrap="nowrap">Fe 510 B</td>
			<td nowrap="nowrap">SS21,32,01</td>
			<td nowrap="nowrap">IS 961</td>
			<td nowrap="nowrap">A633&nbsp; gr A,C,D</td>
			<td>50 B</td>
		</tr>
	</tbody>
</table>
&nbsp;<br  />
&nbsp;Thành phần hóa học
<table border="1" cellpadding="0" cellspacing="0">
	<tbody>
		<tr>
			<td colspan="7" nowrap="nowrap">&nbsp;thành phần hóa học SM490 A/B/C</td>
		</tr>
		<tr>
			<td nowrap="nowrap" rowspan="2">Grade</td>
			<td colspan="6" nowrap="nowrap">&nbsp;Các nguyên tố Max (%)</td>
		</tr>
		<tr>
			<td nowrap="nowrap">C max</td>
			<td nowrap="nowrap">Si</td>
			<td nowrap="nowrap">Mn</td>
			<td nowrap="nowrap">P</td>
			<td nowrap="nowrap">S</td>
			<td>Cu (min)</td>
		</tr>
		<tr>
			<td nowrap="nowrap">Thép tấm SM490A&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;</td>
			<td nowrap="nowrap">0.20-0.22&nbsp; &nbsp; &nbsp; &nbsp;</td>
			<td nowrap="nowrap">0.55&nbsp; &nbsp; &nbsp; &nbsp;&nbsp;</td>
			<td nowrap="nowrap">1.65&nbsp; &nbsp; &nbsp;&nbsp;</td>
			<td nowrap="nowrap">0.035&nbsp; &nbsp; &nbsp;</td>
			<td nowrap="nowrap">0.035&nbsp; &nbsp; &nbsp;&nbsp;</td>
			<td>-</td>
		</tr>
		<tr>
			<td nowrap="nowrap">Thép tấm SM490B<br  />
			&nbsp;</td>
			<td nowrap="nowrap">0.18 – 0.20</td>
			<td nowrap="nowrap">0.55</td>
			<td nowrap="nowrap">1.65</td>
			<td nowrap="nowrap">0.035</td>
			<td nowrap="nowrap">0.035</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td nowrap="nowrap">Thép tấm SM490C</td>
			<td nowrap="nowrap">0.18</td>
			<td nowrap="nowrap">0.55</td>
			<td nowrap="nowrap">1.65</td>
			<td nowrap="nowrap">0.035</td>
			<td nowrap="nowrap">0.035</td>
			<td>&nbsp;</td>
		</tr>
	</tbody>
</table>
&nbsp;<br  />
Công thức tính carbon tương đương: Ceq = 【C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15】%<br  />
<strong>&nbsp;<br  />
Tính chất cơ lý</strong><br  />
<br  />
&nbsp;&nbsp;
<table align="left" border="1" bordercolor="rgb(204, 204, 204);" cellpadding="0" cellspacing="0">
	<tbody>
		<tr>
			<td rowspan="3" width="76">&nbsp;</td>
			<td colspan="2" width="165">Giới hạn chảy<br  />
			N/mm2 (min)</td>
			<td width="131">Độ bền kéo<br  />
			N/mm2</td>
			<td colspan="2" width="302">Độ dãn dài&nbsp;</td>
		</tr>
		<tr>
			<td colspan="2" width="165">Độ dày mm</td>
			<td width="131">Độ dày mm</td>
			<td rowspan="2" width="129">Độ dày mm</td>
			<td rowspan="2" width="69">% min</td>
		</tr>
		<tr>
			<td width="82">t≦16</td>
			<td width="83">16&lt;t≦40</td>
			<td width="131">t≦100</td>
		</tr>
		<tr>
			<td rowspan="3" width="76">Thép tấm&nbsp;SM490A&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;<br  />
			Thép tấm&nbsp;SM490B&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;<br  />
			Thép tấm&nbsp;SM490C&nbsp; &nbsp; &nbsp;&nbsp;</td>
			<td rowspan="3" width="82">325</td>
			<td rowspan="3" width="83">315</td>
			<td rowspan="3" width="131">490-610</td>
			<td width="129">t≦5</td>
			<td width="69">22</td>
		</tr>
		<tr>
			<td width="129">t≦16</td>
			<td width="69">17</td>
		</tr>
		<tr>
			<td width="129">t≦50</td>
			<td width="69">21</td>
		</tr>
	</tbody>
</table>
<strong>&nbsp;<br  />
&nbsp;<br  />
&nbsp;<br  />
&nbsp;<br  />
&nbsp;<br  />
&nbsp;<br  />
&nbsp;<br  />
&nbsp;</strong><br  />
<br  />
&nbsp;
		</div>
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				<strong>Tác giả bài viết:</strong>
				Thép Thuận Thiên
			</p>
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