<h3 style="color: rgb(0, 0, 0); font-size: 18px; font-family: 'Microsoft YaHei', SimHei, Verdana; font-weight: 500;"> 特性:</h3> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 4140&nbsp;钢材,此钢拥有良好的加工性,加工变形微小,抗疲劳性能相当好,属中等等<a data-ke-="" href="http://baike.baidu.com/subview/539552/539552.htm" src="http://baike.baidu.com/subview/539552/539552.htm" target="_blank">淬透性</a>钢,4140<a data-ke-="" href="http://baike.baidu.com/view/32682.htm" src="http://baike.baidu.com/view/32682.htm" target="_blank">热处理</a>后有较好的强度和良好的综合力学性能,工艺性好,成材率高.最高使用温度为427<a data-ke-="" href="http://baike.baidu.com/view/423347.htm" src="http://baike.baidu.com/view/423347.htm" target="_blank">摄氏度</a>.4140<a data-ke-="" href="http://baike.baidu.com/view/91950.htm" src="http://baike.baidu.com/view/91950.htm" target="_blank">强度</a>、淬透性高，韧性好，<a data-ke-="" href="http://baike.baidu.com/view/63818.htm" src="http://baike.baidu.com/view/63818.htm" target="_blank">淬火</a>时变形小，高温时有高的<a data-ke-="" href="http://baike.baidu.com/subview/1282124/1282124.htm" src="http://baike.baidu.com/subview/1282124/1282124.htm" target="_blank">蠕变强度</a>和<a data-ke-="" href="http://baike.baidu.com/subview/1502846/1502846.htm" src="http://baike.baidu.com/subview/1502846/1502846.htm" target="_blank">持久强度</a>。用于制造要求较<a data-ke-="" href="http://baike.baidu.com/subview/1835604/1835604.htm" src="http://baike.baidu.com/subview/1835604/1835604.htm" target="_blank">35CrMo</a>钢强度更高和<a data-ke-="" href="http://baike.baidu.com/subview/891605/891605.htm" src="http://baike.baidu.com/subview/891605/891605.htm" target="_blank">调质</a>截面更大的<a data-ke-="" href="http://baike.baidu.com/subview/1308476/1308476.htm" src="http://baike.baidu.com/subview/1308476/1308476.htm" target="_blank">锻件</a>，如机车牵引用的大齿轮、增压器传动齿轮、后轴、受载荷极大的连杆及弹簧夹，也可用于 2000m以下石油深井<a data-ke-="" href="http://baike.baidu.com/subview/1056674/1056674.htm" src="http://baike.baidu.com/subview/1056674/1056674.htm" target="_blank">钻杆</a>接头与<a data-ke-="" href="http://baike.baidu.com/subview/11596074/11944912.htm" src="http://baike.baidu.com/subview/11596074/11944912.htm" target="_blank">打捞工具</a>，并且可以用于<a data-ke-="" href="http://baike.baidu.com/subview/1119687/1119687.htm" src="http://baike.baidu.com/subview/1119687/1119687.htm" target="_blank">折弯机</a>的模具等。</div> <h3 style="color: rgb(0, 0, 0); font-size: 18px; font-family: 'Microsoft YaHei', SimHei, Verdana; font-weight: 500;"> 化学成分：</h3> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 地区：中国</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 标准：GB/T 3077&mdash;1999</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 碳(C)0.38～0.45</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 硅(Si)0.17～0.37</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <div style="word-wrap: break-word; border: 1px solid rgb(224, 224, 224); margin: 0px 0px 3px 20px;"> <a data-ke-="" href="http://baike.baidu.com/picture/3699373/3699373/0/a6aed01bfa72efa6ae513365.html?fr=lemma&amp;ct=single" src="http://baike.baidu.com/picture/3699373/3699373/0/a6aed01bfa72efa6ae513365.html?fr=lemma&amp;ct=single" target="_blank"><img alt="提供4140合金结构钢" data-ke-="" src="http://h.hiphotos.baidu.com/baike/s%3D220/sign=9140793c0c33874498c5287e610ed937/adaf2edda3cc7cd9ea7413b53901213fb80e9104.jpg" style="border: 0px; width: 200px; height: 150px;" /></a><span style="color: rgb(85, 85, 85); font-size: 12px; font-family: 宋体; line-height: 15px;">提供4140合金结构钢</span></div> 锰(Mn)0.50～0.80</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 磷(P)&le;0.035</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 硫(S)&le;0.035</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 铬(Cr)0.9～1.20</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 镍(Ni)&le;0.30</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 钼(Mo)0.15～0.25</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 铜(Cu)&le;0.30</div> <div style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: arial, 宋体, sans-serif; font-size: 14px;"> &nbsp;</div> <h2 style="color: rgb(0, 0, 0); font-size: 24px; font-family: 'Microsoft YaHei', SimHei, Verdana; font-weight: 500;"> <span style="line-height: 24px; font-size: 16px; background-color: rgb(81, 156, 234); color: rgb(255, 255, 255);">2</span><span style="line-height: 24px;">力学性能：</span></h2> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a data-ke-="" href="http://baike.baidu.com/subview/52178/52178.htm" src="http://baike.baidu.com/subview/52178/52178.htm" target="_blank">抗拉强度</a>&nbsp;&sigma;b (MPa)：&ge;1080(110) <div style="word-wrap: break-word; border: 1px solid rgb(224, 224, 224);"> <a data-ke-="" href="http://baike.baidu.com/picture/3699373/3699373/2003401/b3ba5d167cab5d1621a4e942.html?fr=lemma&amp;ct=cover" src="http://baike.baidu.com/picture/3699373/3699373/2003401/b3ba5d167cab5d1621a4e942.html?fr=lemma&amp;ct=cover" target="_blank"><img alt="提供合金结构钢" data-ke-="" src="http://b.hiphotos.baidu.com/baike/s%3D220/sign=b58659a7fbedab6470724ac2c737af81/1c950a7b02087bf41b587085f2d3572c11dfcf21.jpg" style="border: 0px; width: 200px; height: 150px;" /></a></div> <div style="word-wrap: break-word; margin: 0px auto;"> <div style="word-wrap: break-word; margin: 0px auto;"> &nbsp;</div> <div style="word-wrap: break-word; margin: 0px auto;"> &nbsp;</div> </div> </div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a data-ke-="" href="http://baike.baidu.com/subview/72126/72126.htm" src="http://baike.baidu.com/subview/72126/72126.htm" target="_blank">屈服强度</a>&nbsp;&sigma;s (MPa)：&ge;930(95)</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a data-ke-="" href="http://baike.baidu.com/subview/499391/499391.htm" src="http://baike.baidu.com/subview/499391/499391.htm" target="_blank">伸长率</a>&nbsp;&delta;5 (%)：&ge;12</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a data-ke-="" href="http://baike.baidu.com/subview/52182/52182.htm" src="http://baike.baidu.com/subview/52182/52182.htm" target="_blank">断面收缩率</a>&nbsp;&psi; (%)：&ge;45</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a data-ke-="" href="http://baike.baidu.com/subview/1252029/1252029.htm" src="http://baike.baidu.com/subview/1252029/1252029.htm" target="_blank">冲击功</a>&nbsp;Akv (J)：&ge;63</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> <a data-ke-="" href="http://baike.baidu.com/subview/52186/52186.htm" src="http://baike.baidu.com/subview/52186/52186.htm" target="_blank">冲击韧性</a>值 &alpha;kv (J/cm2)：&ge;78(8)</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 硬度 ：&le;217HB</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋体, sans-serif; font-size: 14px;"> 试样尺寸：试样<a data-ke-="" href="http://baike.baidu.com/subview/430712/430712.htm" src="http://baike.baidu.com/subview/430712/430712.htm" target="_blank">毛坯</a>尺寸为25mm</div>