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		<h1>THÉP TẤM C45 - THÉP LÀM KHUÔN - THÉP CHẾ TẠO MÁY</h1>
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			<li>Thứ năm - 18/04/2019 04:40</li>
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			Công Ty Cổ Phần Kinh Doanh Thép Thái An chuyên Nhập khẩu và Phân Phối Thép Tấm với nhiều mác Thép khác nhau theo tiêu chuẩn ASTM, JIS, GB , DIN, EU, ..từ Nga, Châu Âu, Nhật Bản,Trung Quốc, Hàn Quốc, Đài Loan, Malaysia, Indonesia..
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<figure class="image" style="display:inline-block"><img alt="Thép Tấm C45" height="800" src="https://www.thepnhapkhauthaian.com/uploads/news/2019/s50c.bmp" width="1066" />
<figcaption>Thép Tấm C45</figcaption>
</figure>
</div>

<h2><strong><span style="font-size:16px;">ỨNG DỤNG</span></strong><br  />
Thép mác C45 được ứng dụng và sử dụng phổ biến trong các công trình xây dựng và công nghiệp chế tạo máy hiện nay bởi&nbsp;cơ tính (độ bền, độ cứng, dộ dẻo,…) rất phù hợp cho gia công cơ khí, chế tạo chi tiết máy, xây dựng cầu đường, khung thép,… dễ dàng tôi, ram để đạt được độ cứng mong muốn.<br  />
Ngoài ra thép tròn C45 thường được dụng chế tạo, cán ren, bulong, làm chi tiết máy, chế tạo các loại trục, bánh răng, chế tạo bản mã,&nbsp;mặt bích thép, trục, liềm, rùi, khoan gỗ làm việc, dao,…</h2>

<p><span style="font-size:16px;"><strong>ĐẶC&nbsp;ĐIỂM CHUNG<br  />
Thép C45 là thép Carbon có hàm lượng Carbon là 0,45% (0,45%C), ngoài ra loại thép này còn chứa các tạp chất khác như&nbsp;silic, mangan, lưu huỳnh, crom, phốt pho, đồng, niken…</strong></span></p>

<p><strong><span style="font-size:16px;">Ở điều kiện bình thường thép C45 có độ cứng HRC là 23, trong trường hợp yêu cầu cần thép có độ cứng cao hơn người ta sử dụng phương pháp tôi, ram để tăng độ cứng của thép C45.</span></strong></p>

<p><strong><span style="font-size:16px;">Tùy theo độ cứng cần sử dụng, người ta có thể sử dụng phương pháp tôi dầu, tôi nước hoặc tôi cao tần trong các điều kiện thích hợp để có độ cứng mong muốn.</span></strong></p>

<h2><strong><span style="font-size:16px;">THÀNH PHẦN HÓA HỌC</span></strong></h2>
&nbsp;

<table border="0" cellpadding="0" cellspacing="0">
	<tbody>
		<tr>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>Thành phần hóa học</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>C</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>Si</strong>&nbsp;<br  />
			max.</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>Mn</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>P</strong></span></p>

			<p style="text-align: center;"><span style="font-size:16px;">max.</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>S</strong><br  />
			max.</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>Cr</strong><br  />
			max.</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>Mo</strong><br  />
			max.</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>Ni</strong><br  />
			max.</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>Cr+Mo+Ni</strong><br  />
			max.</span></p>
			</td>
			<td>
			<p style="text-align: center;">&nbsp;</p>
			</td>
		</tr>
		<tr>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">Tỷ lệ % nguyên tố</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">0,42-0,50</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">0,40</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">0,50-0,80</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">0,045</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">0,045</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">0,40</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">0,10</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">0,40</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">0,63</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">-</span></p>
			</td>
		</tr>
		<tr>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">Dung sai</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">±&nbsp; 0,02</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">+ 0,03</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">± 0,04</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">+ 0,005</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">+ 0,005</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">+ 0,05</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">+ 0,03</span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;">+ 0,05</span></p>
			</td>
			<td style="text-align: center;">&nbsp;</td>
		</tr>
	</tbody>
</table>

<h3 style="text-align: center;">&nbsp;</h3>

<h3><strong><span style="font-size:16px;">TÍNH CHẤT CƠ LÝ</span></strong></h3>

<div>&nbsp;</div>

<h3>&nbsp;</h3>

<table border="0" cellpadding="0" cellspacing="0" style="font-size: 13px;" width="734">
	<tbody>
		<tr>
			<td height="114" rowspan="3" style="text-align: center;" width="65"><span style="font-size:16px;"><strong>Mác thép</strong></span></td>
			<td rowspan="3" style="text-align: center;" width="126"><span style="font-size:16px;"><strong>Điều kiện</strong></span></td>
			<td rowspan="3" style="text-align: center;" width="64"><span style="font-size:16px;"><strong>Yield Strength (Mpa)</strong></span></td>
			<td rowspan="3" style="text-align: center;" width="64"><span style="font-size:16px;"><strong>Sức căng (Mpa)</strong></span></td>
			<td rowspan="3" style="text-align: center;" width="64"><span style="font-size:16px;"><strong>Elon-gation A5 (%)</strong></span></td>
			<td rowspan="3" style="text-align: center;" width="64"><span style="font-size:16px;"><strong>Độ cứng HRC</strong></span></td>
			<td rowspan="3" style="text-align: center;" width="64"><span style="font-size:16px;"><strong>Nhiệt độ</strong></span></td>
			<td rowspan="3" style="text-align: center;" width="83"><span style="font-size:16px;"><strong>Benda- khả năng</strong></span></td>
			<td colspan="2" style="text-align: center;" width="140"><span style="font-size:16px;"><strong>Độ dày danh nghĩa, t</strong></span></td>
		</tr>
		<tr>
			<td colspan="2" height="38" style="text-align: center;" width="140"><span style="font-size:16px;">1.95mm≤t≤10.0mm</span></td>
		</tr>
		<tr>
			<td height="38" style="text-align: center;" width="64"><span style="font-size:16px;"><strong>Cán</strong></span></td>
			<td style="text-align: center;" width="76"><span style="font-size:16px;"><strong>Nung</strong></span></td>
		</tr>
		<tr>
			<td height="137" rowspan="4" style="text-align: center;" width="65"><span style="font-size:16px;">C45</span></td>
			<td style="text-align: center;" width="126"><span style="font-size:16px;">Cán</span></td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">460</span></td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">750</span></td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">18</span></td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">58</span></td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">820</span></td>
			<td rowspan="4" style="text-align: center;" width="83"><span style="font-size:16px;">Bán kính uốn cong (≤90 °)</span></td>
			<td rowspan="4" style="text-align: center;" width="64"><span style="font-size:16px;">2,0 x t</span></td>
			<td rowspan="4" style="text-align: center;" width="76"><span style="font-size:16px;">1,0 × t</span></td>
		</tr>
		<tr>
			<td height="38" style="text-align: center;" width="126"><span style="font-size:16px;">Nung</span></td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">330</span></td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">540</span></td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">30</span></td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">55</span></td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">860</span></td>
		</tr>
		<tr>
			<td height="30" style="text-align: center;" width="126"><span style="font-size:16px;">Nước ngập nước</span></td>
			<td style="text-align: center;" width="64">&nbsp;</td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">2270</span></td>
			<td style="text-align: center;" width="64">&nbsp;</td>
			<td style="text-align: center;" width="64">&nbsp;</td>
			<td style="text-align: center;" width="64">&nbsp;</td>
		</tr>
		<tr>
			<td height="30" style="text-align: center;" width="126"><span style="font-size:16px;">Dầu ngập</span></td>
			<td style="text-align: center;" width="64">&nbsp;</td>
			<td style="text-align: center;" width="64"><span style="font-size:16px;">1980</span></td>
			<td style="text-align: center;" width="64">&nbsp;</td>
			<td style="text-align: center;" width="64">&nbsp;</td>
			<td style="text-align: center;" width="64">&nbsp;</td>
		</tr>
	</tbody>
</table>
&nbsp;

<h3 style="text-align: center;">&nbsp;</h3>

<h3><strong><span style="font-size:16px;">CHỈ SỐ BỀN KÉO</span></strong></h3>
&nbsp;

<table width="327">
	<tbody>
		<tr>
			<td colspan="2" width="109"><span style="font-size:16px;"><strong>Mác thép</strong></span></td>
			<td colspan="3" width="169"><span style="font-size:16px;"><strong>Tiêu chuẩn</strong></span></td>
			<td colspan="3" width="89"><br  />
			<span style="font-size:16px;"><strong>Độ bên đứt<br  />
			σb (Mpa)</strong></span></td>
			<td colspan="2" width="89"><br  />
			<span style="font-size:16px;"><strong>Độ bền đứt<br  />
			σc (Mpa)</strong></span></td>
			<td colspan="2" width="87"><br  />
			<span style="font-size:16px;"><strong>Độ giãn dài tương đối<br  />
			δ (%)</strong></span></td>
			<td colspan="3" width="83"><br  />
			<span style="font-size:16px;"><strong>Độ cứng<br  />
			HRC</strong></span></td>
		</tr>
		<tr>
			<td colspan="2" width="109"><span style="font-size:16px;">C45</span></td>
			<td colspan="3" width="169"><span style="font-size:16px;">TCVN 1766-75</span></td>
			<td colspan="3" width="89"><span style="font-size:16px;">610</span></td>
			<td colspan="2" width="89"><span style="font-size:16px;">360</span></td>
			<td colspan="2" width="87"><span style="font-size:16px;">16</span></td>
			<td colspan="3" width="83"><span style="font-size:16px;">23</span></td>
		</tr>
	</tbody>
</table>

<p>&nbsp;</p>

<p><span style="font-size:16px;"><strong>Tính chất cơ học trong điều kiện thường, tôi luyện và nhiệt độ</strong></span><br  />
&nbsp;</p>

<table border="1" cellpadding="0" cellspacing="0">
	<tbody>
		<tr>
			<td colspan="6">
			<p style="text-align: center;"><span style="font-size:16px;"><strong>Thickness of ruling section t<sub>R</sub></strong></span></p>
			</td>
		</tr>
		<tr>
			<td colspan="2">
			<p style="text-align: center;"><span style="font-size:16px;"><strong>Kích thước mm</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>t<sub>R</sub>&nbsp;≤ 100mm</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>100&lt; t<sub>R</sub>&nbsp;≤250mm</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>250&lt; t<sub>R</sub>&nbsp;≤500mm</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>500&lt; t<sub>R</sub>&nbsp;≤1000mm</strong></span></p>
			</td>
		</tr>
		<tr>
			<td colspan="2">
			<p style="text-align: center;"><span style="font-size:16px;"><strong>R<sub>e&nbsp;</sub>min&nbsp; (N/mm<sup>2</sup>)</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>305</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>275</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>240</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>230</strong></span></p>
			</td>
		</tr>
		<tr>
			<td colspan="2">
			<p style="text-align: center;"><span style="font-size:16px;"><strong>R<sub>m</sub>&nbsp;min (N/mm<sup>2</sup>)</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>580</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>560</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>540</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>530</strong></span></p>
			</td>
		</tr>
		<tr>
			<td rowspan="2">
			<p style="text-align: center;"><span style="font-size:16px;"><strong>A % min.</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>l-l</strong><strong>ongitudinal</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>16</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>16</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>16</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>15</strong></span></p>
			</td>
		</tr>
		<tr>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>tr -&nbsp;</strong><strong>transverse</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>-</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>12</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>12</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>11</strong></span></p>
			</td>
		</tr>
		<tr>
			<td rowspan="2">
			<p style="text-align: center;"><span style="font-size:16px;"><strong>KV min * (J)</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>l-</strong><strong>longitudinal</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>-</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>18</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>15</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>12</strong></span></p>
			</td>
		</tr>
		<tr>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>tr -&nbsp;</strong><strong>transverse</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>-</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>10</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>10</strong></span></p>
			</td>
			<td>
			<p style="text-align: center;"><span style="font-size:16px;"><strong>10</strong></span></p>
			</td>
		</tr>
	</tbody>
</table>

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