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<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, 宋體, sans-serif; font-size: 14px;"> 4140&nbsp;鋼材,此鋼擁有良好的加工性,加工變形微小,抗疲勞性能相當(dāng)好,屬中等等<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>鋼,4140<a data-ke-="" href="http://baike.baidu.com/view/32682.htm" src="http://baike.baidu.com/view/32682.htm" target="_blank">熱處理</a>后有較好的強(qiáng)度和良好的綜合力學(xué)性能,工藝性好,成材率高.最高使用溫度為427<a data-ke-="" href="http://baike.baidu.com/view/423347.htm" src="http://baike.baidu.com/view/423347.htm" target="_blank">攝氏度</a>.4140<a data-ke-="" href="http://baike.baidu.com/view/91950.htm" src="http://baike.baidu.com/view/91950.htm" target="_blank">強(qiáng)度</a>、淬透性高，韌性好，<a data-ke-="" href="http://baike.baidu.com/view/63818.htm" src="http://baike.baidu.com/view/63818.htm" target="_blank">淬火</a>時(shí)變形小，高溫時(shí)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">蠕變強(qiáng)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">持久強(qiáng)度</a>。用于制造要求較<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>鋼強(qiáng)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">調(diào)質(zhì)</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">鍛件</a>，如機(jī)車牽引用的大齒輪、增壓器傳動(dòng)齒輪、后軸、受載荷極大的連桿及彈簧夾，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">鉆桿</a>接頭與<a data-ke-="" href="http://baike.baidu.com/subview/11596074/11944912.htm" src="http://baike.baidu.com/subview/11596074/11944912.htm" target="_blank">打撈工具</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">折彎機(jī)</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;"> 化學(xué)成分：</h3> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 地區(qū)：中國</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 標(biāo)準(zhǔn)：GB/T 3077&mdash;1999</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋體, 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, 宋體, 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, 宋體, 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合金結(jié)構(gòu)鋼" 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: 宋體; line-height: 15px;">提供4140合金結(jié)構(gòu)鋼</span></div> 錳(Mn)0.50～0.80</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋體, 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, 宋體, 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, 宋體, sans-serif; font-size: 14px;"> 鉻(Cr)0.9～1.20</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 鎳(Ni)&le;0.30</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 鉬(Mo)0.15～0.25</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 銅(Cu)&le;0.30</div> <div style="word-wrap: break-word; color: rgb(0, 0, 0); font-family: arial, 宋體, 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;">力學(xué)性能：</span></h2> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋體, 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">抗拉強(qiáng)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="提供合金結(jié)構(gòu)鋼" 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, 宋體, 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">屈服強(qiáng)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, 宋體, 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">伸長率</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, 宋體, 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">斷面收縮率</a>&nbsp;&psi; (%)：&ge;45</div> <div style="word-wrap: break-word; color: rgb(51, 51, 51); margin: 15px 0px 5px; font-family: arial, 宋體, 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">沖擊功</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, 宋體, 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">沖擊韌性</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, 宋體, 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, 宋體, sans-serif; font-size: 14px;"> 試樣尺寸：試樣<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>尺寸為25mm</div>