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<h1 class="title maintitle" id="" style="margin: 0px 0px 14px; padding: 0px; font-size: 34px; width: 700px; font-family: 'Microsoft YaHei', SimHei, Verdana; line-height: 34px; color: rgb(0, 0, 0); font-weight: 500; z-index: 0; position: relative; overflow: hidden; zoom: 1; clear: right;"> <span class="lemmaTitleH1" style="height: auto; padding: 0px 0px 5px; display: inline;">42CrMo</span></h1> <p> &nbsp;</p> <p> <span style="color: rgb(51, 51, 51); font-family: arial, 宋體, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;">42CrMo鋼屬于超高強度鋼，具有高強度和韌性，淬透性也較好，無明顯的回火脆性，調(diào)質(zhì)處理后有較高的疲勞極限和抗多次沖擊能力，低溫沖擊韌性良好。該鋼適宜制造要求一定強度和韌性的大、中型塑料模具。</span></p> <p> &nbsp;</p> <p> <a href="http://baike.baidu.com/view/91950.htm" style="text-decoration: none; color: rgb(19, 110, 194); font-family: arial, 宋體, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;" target="_blank">強度</a><span style="color: rgb(51, 51, 51); font-family: arial, 宋體, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;">、淬透性高，</span><a href="http://baike.baidu.com/view/545555.htm" style="text-decoration: none; color: rgb(19, 110, 194); font-family: arial, 宋體, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;" target="_blank">韌性</a><span style="color: rgb(51, 51, 51); font-family: arial, 宋體, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;">好，淬火時變形小，高溫時有高的蠕變強度和</span><a href="http://baike.baidu.com/view/1502846.htm" style="text-decoration: none; color: rgb(19, 110, 194); font-family: arial, 宋體, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;" target="_blank">持久強度</a><span style="color: rgb(51, 51, 51); font-family: arial, 宋體, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;">。用于制造要求較35CrMo鋼強度更高和</span><a href="http://baike.baidu.com/view/891605.htm" style="text-decoration: none; color: rgb(19, 110, 194); font-family: arial, 宋體, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;" target="_blank">調(diào)質(zhì)</a><span style="color: rgb(51, 51, 51); font-family: arial, 宋體, sans-serif; font-size: 14px; line-height: 24px; text-indent: 28px;">截面更大的鍛件，如機車牽引用的大齒輪、增壓器傳動齒輪、壓力容器齒輪、后軸、受載荷極大的連桿及彈簧夾，也可用于 2000m以下石油深井鉆桿接頭與打撈工具，并且可以用于折彎機的模具等。</span></p> <p> &nbsp;</p> <p> 化學(xué)成分：</p> <p> &nbsp;</p> <p> <span style="color: rgb(51, 51, 51); font-family: arial, 宋體, sans-serif; font-size: 14px; line-height: 24px; text-indent: 2em;">&nbsp; &nbsp; &nbsp; 碳 C ：0.38～0.45%</span></p> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 硅 Si：0.17～0.37%</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 錳 Mn：0.50～0.80%</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 硫 S ：允許殘余含量&le;0.035%</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 磷 P ：允許殘余含量&le;0.035%</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 鉻 Cr：0.90～1.20%</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 鎳 Ni：允許殘余含量&le;0.030%</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 銅 Cu：允許殘余含量&le;0.030%</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 鉬 Mo：0.15～0.25%</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> &nbsp;</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> 物理性能：</div> <div class="para" style="color: rgb(51, 51, 51); margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-family: arial, 宋體, sans-serif; font-size: 14px;"> <div class="para" style="margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-size: 14px;"> <a href="http://baike.baidu.com/view/52178.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">抗拉強度</a>&sigma;b (MPa)：&ge;1080(110)</div> <div class="para" style="margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-size: 14px;"> 屈服強度 &sigma;s (MPa)：&ge;930(95)</div> <div class="para" style="margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-size: 14px;"> 伸長率 &delta;5 (%)：&ge;12</div> <div class="para" style="margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-size: 14px;"> <a href="http://baike.baidu.com/view/52182.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">斷面收縮率</a>&psi; (%)：&ge;45</div> <div class="para" style="margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-size: 14px;"> 沖擊功 Akv (J)：&ge;63</div> <div class="para" style="margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-size: 14px;"> <a href="http://baike.baidu.com/view/52186.htm" style="text-decoration: none; color: rgb(19, 110, 194);" target="_blank">沖擊韌性</a>值 &alpha;kv (J/cm2)：&ge;78(8)</div> <div class="para" style="margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-size: 14px;"> 硬度 ：&le;217HB</div> <div class="para" style="margin: 15px 0px 5px; text-indent: 2em; line-height: 24px; font-size: 14px;"> 試樣尺寸：試樣毛坯尺寸為25mm</div> </div> <p> &nbsp;</p>