<h1 style="color: rgb(0, 0, 0); font-size: 34px; font-family: 'Microsoft YaHei', SimHei, Verdana; font-weight: 500;"> 2cr13</h1> <p style="word-wrap: break-word; margin: 5px 0px; color: rgb(0, 0, 0); font-family: 'sans serif', tahoma, verdana, helvetica; font-size: 12px; line-height: 18px;"> <span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; font-size: 14px; line-height: 24px;">2Cr13属</span><a data-ke-="" href="http://baike.baidu.com/view/188445.htm" src="http://baike.baidu.com/view/188445.htm" target="_blank">马氏体不锈钢</a><span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; font-size: 14px; line-height: 24px;">有磁性，硬度好，焊接要预热的。和Q235焊接用</span><a data-ke-="" href="http://baike.baidu.com/view/832025.htm" src="http://baike.baidu.com/view/832025.htm" target="_blank">奥氏体不锈钢</a><span style="color: rgb(51, 51, 51); font-family: arial, 宋体, sans-serif; font-size: 14px; line-height: 24px;">焊条不用预热，焊接，采用较小的电流。2Cr13焊接焊材可以选用1.抗大气腐蚀选G202,G207，需预热150-300度，焊后回火700-730度；2.耐有机酸并耐热选：G211，需预热150-300度；3.良好塑性：A102,A107,A202,A207,A302,A307，补焊预热，厚大件预热。</span></p> <p style="word-wrap: break-word; margin: 5px 0px; color: rgb(0, 0, 0); font-family: 'sans serif', tahoma, verdana, helvetica; font-size: 12px; line-height: 18px;"> &nbsp;</p> <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;"> <b>特性</b></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;"> 2Cr13属<a data-ke-="" href="http://baike.baidu.com/view/188445.htm" src="http://baike.baidu.com/view/188445.htm" target="_blank">马氏体不锈钢</a>，有磁性，硬度好，焊接要预热的。和Q235焊接用<a data-ke-="" href="http://baike.baidu.com/view/832025.htm" src="http://baike.baidu.com/view/832025.htm" target="_blank">奥氏体不锈钢</a>焊条不用预热，比如A302.A307都行。</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;"> 焊接时控制焊缝稀释率，不摆动焊接，采用较小的电流。</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;"> 2Cr13焊接焊材可以选用：</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;"> 1.抗大气腐蚀选G202,G207，需预热150-300度，焊后回火700-730度；</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;"> 2.耐有机酸并耐热选：G211，需预热150-300度；</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;"> 3.良好塑性：A102,A107,A202,A207,A302,A307，补焊预热，厚大件预热。</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;"> 2Cr13不锈钢淬火状态下硬度高，耐蚀性良好。很多用于做刀具，是&ldquo;刃具级&rdquo;马氏体钢，也用于外科手术刀具，类似布氏高铬钢这种最早的不锈钢，另外也有用作汽轮机叶片等，适用范围很广。</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;"> 2Cr13密度为7.75g/cm3</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;"> 2Cr13淬火硬度：一般2Cr13的淬火温度在980～1050℃，取980℃加热油淬时硬度要明显低于1050℃加热油淬，980℃油淬后硬度为45～50HRC，1050℃油淬后硬度要高2HRC。但1050℃淬火后得到的组织晶粒较粗，脆性大。建议使用1000℃加热淬火可以得到较好的组织和硬度。</div> <p> ???</p> <p> &nbsp;</p>