<h2 style="margin: 0px; padding: 0px; outline: 0px; font-size: 20px; color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif;"> 2Cr13</h2> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em; color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; line-height: 24px;"> <span style="margin: 0px; padding: 0px; outline: 0px; font-size: 14px; font-family: arial, sans-serif; line-height: 28px;">2Cr13</span></p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em; color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; line-height: 24px;"> &nbsp;</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em; color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; line-height: 24px;"> <span style="margin: 0px; padding: 0px; outline: 0px; font-size: 14px; font-family: arial, sans-serif; line-height: 28px;">属马氏体不锈钢有</span>磁性<span style="margin: 0px; padding: 0px; outline: 0px; font-size: 14px; font-family: arial, sans-serif; line-height: 28px;">，</span>硬度<span style="margin: 0px; padding: 0px; outline: 0px; font-size: 14px; font-family: arial, sans-serif; line-height: 28px;">好，</span>焊接<span style="margin: 0px; padding: 0px; outline: 0px; font-size: 14px; font-family: arial, sans-serif; line-height: 28px;">要预热的。和Q235焊接用奥氏体不锈钢焊条不用预热，焊接时控制焊缝稀释率，不摆动焊接，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</span>预热<span style="margin: 0px; padding: 0px; outline: 0px; font-size: 14px; font-family: arial, sans-serif; line-height: 28px;">。</span></p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em; color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; line-height: 24px;"> &nbsp;</p> <div style="margin: 0px; padding: 0px; outline: 0px; color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; line-height: 24px;"> <div style="margin: -7px 0px 0px; padding: 0px; outline: 0px;"> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 淬火状态下硬度高，耐蚀性良好。用作汽轮机叶片。</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 2Cr13密度为7.75g/cm3</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; text-indent: 2em;"> 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。<img src="http://i2.qhimg.com/dr/200__/t01defb0b4d8f5ea32b.jpg" style="margin: 0px; padding: 0px; outline: 0px; border: none;" /></p> </div> </div> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 化学成分：、</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 碳 C ：0.16～0.25</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 硅 Si：&le;1.00</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 锰 Mn：&le;1.00<img src="http://i3.qhimg.com/dr/200__/t019907fcdb99ecb73f.jpg" style="margin: 0px; padding: 0px; outline: 0px; border: none;" /></p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 硫 S ：&le;0.030</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 磷 P ：&le;0.035</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 铬 Cr：12.00～14.00</p> <p style="margin: 0px; padding: 0px 12px; outline: 0px; font-size: 14px; text-indent: 2em; color: rgb(0, 0, 0); line-height: 24px; font-family: arial, sans-serif;"> 镍 Ni：允许含有&le;0.60</p> <div> &nbsp;</div>