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		<h2 class="pull-left">THÉP THUẬN THIÊN</h2>
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		<h1>THÉP TRÒN ĐẶC HÀN QUỐC</h1>
		<ul class="list-inline">
			<li>Thứ hai - 06/05/2019 10:55</li>
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			Thép tròn đặc Hàn QUốc với các mác thép<br  />
S45C<br  />
SCR440, SCR420<br  />
SCM415, SCM420, SCM435, SCM440, SCM982...<br  />
Đặt nhập theo nhu cầu<br  />
Nhà máy sản xuất: HYUNDAI POHANG
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			<h2>Công ty Thép Thuận Thiên chuyên nhập khẩu và cung ứng thép tròn đặc cho thị trường trong nước. Thép tròn đặc SS400, CT3, SCR420, SCR440, SCM415, SCM420, SCM440, S15C, S20C, S45C, S50C, SKD11, SKD61</h2>

<h2>Thành phần hóa học</h2>

<table border="1" cellpadding="0" cellspacing="0" width="729">
	<tbody>
		<tr>
			<td>Mác Thép</td>
			<td>C</td>
			<td>Si</td>
			<td>Mn</td>
			<td>P</td>
			<td>S</td>
			<td>Cr</td>
			<td>Ni</td>
			<td>Mo</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td><strong>SCR420</strong></td>
			<td>0.17 - 0.23</td>
			<td>0.15- 0.35</td>
			<td>0.55 - 0.90</td>
			<td>≤ 0.030</td>
			<td>≤0.030</td>
			<td>0.85 – 1.25</td>
			<td>≤0.25</td>
			<td>-</td>
			<td>Cu ≤0.30</td>
		</tr>
		<tr>
			<td><strong>SCR440</strong></td>
			<td>0.37 – 0.44</td>
			<td>0.15 – 0.35</td>
			<td>0.55 – 0.90</td>
			<td>≤ 0.030</td>
			<td>≤0.030</td>
			<td>0.85- 1.25</td>
			<td>≤0.25</td>
			<td>-</td>
			<td>Cu ≤0.30</td>
		</tr>
		<tr>
			<td><strong>SCM415</strong></td>
			<td>0.13 – 0.18</td>
			<td>0.15- 0.35</td>
			<td>0.60 – 0.90</td>
			<td>≤ 0.030</td>
			<td>≤0.030</td>
			<td>0.90 – 1.20</td>
			<td>≤0.25</td>
			<td>0.15 – 0.25</td>
			<td>Cu ≤0.30</td>
		</tr>
		<tr>
			<td><strong>SCM420</strong></td>
			<td>0.18 – 0.23</td>
			<td>0.15- 0.35</td>
			<td>0.60 – 0.9</td>
			<td>≤ 0.030</td>
			<td>≤0.030</td>
			<td>0.90 – 1.20</td>
			<td>≤0.25</td>
			<td>0.15 – 0.25</td>
			<td>Cu ≤0.30</td>
		</tr>
		<tr>
			<td><strong>SCM430</strong></td>
			<td>0.28 – 0.33</td>
			<td>0.15- 0.35</td>
			<td>0.60 – 0.9</td>
			<td>≤ 0.030</td>
			<td>≤0.030</td>
			<td>0.90 – 1.20</td>
			<td>≤0.25</td>
			<td>0.15 – 0.30</td>
			<td>Cu ≤0.30</td>
		</tr>
		<tr>
			<td><strong>SCM435</strong></td>
			<td>0.33 – 0.38</td>
			<td>0.15- 0.35</td>
			<td>0.60 – 0.9</td>
			<td>≤ 0.030</td>
			<td>≤0.030</td>
			<td>0.90 – 1.20</td>
			<td>≤0.25</td>
			<td>0.15 – 0.30</td>
			<td>Cu ≤0.30</td>
		</tr>
		<tr>
			<td><strong>SCM440</strong></td>
			<td>0.38 – 0.43</td>
			<td>0.15- 0.35</td>
			<td>0.60 – 0.9</td>
			<td>≤ 0.030</td>
			<td>≤0.030</td>
			<td>0.90 – 1.20</td>
			<td>≤0.25</td>
			<td>0.15 – 0.30</td>
			<td>Cu ≤0.30</td>
		</tr>
		<tr>
			<td><strong>S20C</strong></td>
			<td>0.18 – 0.23</td>
			<td>0.15 – 0.35</td>
			<td>0.30 – 0.60</td>
			<td>≤ 0.030</td>
			<td>≤0.035</td>
			<td>≤0.20</td>
			<td>≤0.20</td>
			<td>&nbsp;</td>
			<td>Cu ≤0.30</td>
		</tr>
		<tr>
			<td><strong>S35C</strong></td>
			<td>0.32 – 0.38</td>
			<td>0.15 – 0.35</td>
			<td>0.6 – 0.9</td>
			<td>≤ 0.030</td>
			<td>≤0.035</td>
			<td>≤0.20</td>
			<td>≤0.20</td>
			<td>&nbsp;</td>
			<td>Cu ≤0.30</td>
		</tr>
		<tr>
			<td><strong>S45C</strong></td>
			<td>0.42 – 0.48</td>
			<td>0.15 – 0.35</td>
			<td>0.6 – 0.9</td>
			<td>≤ 0.030</td>
			<td>≤0.035</td>
			<td>≤0.20</td>
			<td>≤0.20</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td><strong>S50C</strong></td>
			<td>0.47 – 0.53</td>
			<td>0.15 – 0.35</td>
			<td>0.6 – 0.9</td>
			<td>≤ 0.030</td>
			<td>≤0.035</td>
			<td>≤0.20</td>
			<td>≤0.20</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td><strong>SKD11</strong></td>
			<td>1.4 – 1.6</td>
			<td>≤ 0.40</td>
			<td>≤ 0.60</td>
			<td>≤ 0.030</td>
			<td>≤ 0.030</td>
			<td>11.0 – 13.0</td>
			<td>&nbsp;</td>
			<td>0.8 – 1.2</td>
			<td>V&nbsp; 0.2 – 0.5</td>
		</tr>
		<tr>
			<td><strong>SKD61</strong></td>
			<td>0.35 – 0.42</td>
			<td>0.8 – 1.2</td>
			<td>0.25 – 0.50</td>
			<td>≤ 0.030</td>
			<td>≤ 0.030</td>
			<td>4.80 – 5.50</td>
			<td>&nbsp;</td>
			<td>1.0 – 1.5</td>
			<td>V 0.8 – 1.15</td>
		</tr>
	</tbody>
</table>
&nbsp;<br  />
Tính chất cơ lý​
<table border="1" cellpadding="0" cellspacing="0" width="866">
	<tbody>
		<tr>
			<td>&nbsp;</td>
			<td>Giới hạn chảy<br  />
			MPa</td>
			<td>Độ bền kéo<br  />
			MPa</td>
			<td>Mô đun đàn hồi<br  />
			MPa</td>
			<td>Độ dãn dài<br  />
			%</td>
			<td>Sức chịu đựng MPa</td>
			<td>Hệ số dãn nở vì nhiệt<br  />
			e-6/K</td>
			<td>Độ dẫn nhiệt<br  />
			W/m.K</td>
			<td>&nbsp;<br  />
			Brinell hardness (HBW)</td>
			<td>Độ cứng khi rèn<br  />
			HBS</td>
			<td>Độ cứng khi kéo lạnh<br  />
			HBS</td>
			<td>Độ cứng sau khi gia cường<br  />
			≥HRC</td>
			<td>Tỷ trọng<br  />
			kg/m3</td>
			<td>Suất điện trở<br  />
			Ohm.mm2/m</td>
		</tr>
		<tr>
			<td><strong>SCR420</strong></td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td><strong>SKD61</strong></td>
			<td>550 (≥)</td>
			<td>835 (≥)</td>
			<td>200.000</td>
			<td>8 - 25</td>
			<td>275</td>
			<td>10</td>
			<td>25</td>
			<td>313</td>
			<td>235</td>
			<td>262</td>
			<td>60</td>
			<td>7700</td>
			<td>0.55</td>
		</tr>
	</tbody>
</table>
&nbsp;<br  />
&nbsp;
<table border="1" cellpadding="0" cellspacing="0" width="866">
	<tbody>
		<tr>
			<td>&nbsp;</td>
			<td>Giới hạn chảy<br  />
			MPa</td>
			<td>Độ bền kéo<br  />
			MPa</td>
			<td>Năng lượng va đập<br  />
			KV (J)</td>
			<td>Độ dãn dài tới điểm đứt<br  />
			A (%)</td>
			<td>Giảm diện tích trong mặt cắt ngang tới điểm đứt<br  />
			Z (%)</td>
			<td>Brinell<br  />
			Hardenness<br  />
			(HBW)</td>
			<td>Tỷ trọng<br  />
			kg/dm3</td>
			<td>&nbsp;<br  />
			Brinell hardness (HBW)</td>
			<td>Nhiệt độ T<br  />
			°C/F</td>
			<td>Specific heat<br  />
			J / kgK</td>
			<td>Độ dẫn nhiệt<br  />
			W/mK</td>
			<td>Giới hạn đàn hồi<br  />
			kN/mm2</td>
			<td>Giới hạn biến dạng rão (10000h)<br  />
			(Rp1,0) N/mm2</td>
			<td>Độ bền ổn định (10000h)<br  />
			(Rp1,0) N/mm2</td>
		</tr>
		<tr>
			<td><strong>SCR420</strong></td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
			<td>&nbsp;</td>
		</tr>
		<tr>
			<td><strong>SKD61</strong></td>
			<td>550 (≥)</td>
			<td>835 (≥)</td>
			<td>32</td>
			<td>43</td>
			<td>22</td>
			<td>313</td>
			<td>161 (≥)</td>
			<td>313</td>
			<td>12</td>
			<td>44</td>
			<td>42</td>
			<td>333</td>
			<td>933</td>
			<td>687</td>
		</tr>
	</tbody>
</table>
&nbsp;<br  />
&nbsp;
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