用途:常用于化肥、尿素、石油化工生产或储存设备的重要结构
品名 | 类别 | AWS型号 | 纯熔敷金属化学成分% | 特性及用途 | ||||||||
C | Si | Mn | Cr | Ni | N | Mo | P | S | ||||
不锈钢焊丝 | 308L | ER308L | <=0.02 | 0.4 | 1.75 | 20 | 10 | 0.4 | <=0.05 | <=0.015 | 焊接18Cr-8Ni不锈钢,电弧稳定,由于增加了Si的含量,焊接操作性及烙金流动性更佳 | |
308LSi | ER308LSi | <=0.02 | 0.8 | 1.75 | 20 | 10 | <=0.025 | <=0.005 | 焊接18Cr-8Ni不锈钢电弧稳定,焊道美观,抗裂性强,由于增加了Si的含量,焊接操作性及熔金流动性更佳 | |||
308H | ER308H | 0.06 | 1 | 1.75 | 20 | 10 | <=0.5 | <=0.03 | <=0.02 | 焊接18Cr-8Ni 不锈钢,电弧稳定,焊道美观,抗裂性强 | ||
307Si | ER307Si | <=0.1 | 0.8 | 7 | 19.5 | 9 | 锰含量高故裂纹敏感度低,适用于非磁性钢,高锰钢,硬化性耐磨钢等难以焊接的钢材 | |||||
307 | ER307 | <=0.05 | 0.5 | 6 | 18 | 8 | <=0.025 | <=0.0015 | 适用于硬化钢、磁性钢及其他难以焊接的钢材 | |||
309L | ER309L | 0.02 | 0.4 | 1.7 | 23.5 | 13.5 | <=0.025 | <=0.015 | 异种金属焊接用,耐热腐蚀性佳,电弧稳定,作业性良 | |||
309LSi | ER309LSi | <=0.03 | 0.8 | 1.8 | 23.5 | 13.5 | <=0.022 | <=0.015 | 异种金属焊接用,耐热耐蚀性佳,电弧稳定,作业性良,由于增加了Si的含量,焊接操作性及熔金流动性更佳 | |||
309Si | ER309Si | <=0.03 | 0.8 | 1.7 | 23.5 | 13.5 | <=0.022 | <=0.015 | 异种金属焊接用,耐热耐蚀性佳,电弧稳定,作业性良 | |||
309LMo | ER309LMo | 0.02 | 0.4 | 1.5 | 21.5 | 12.5 | 2.7 | 高温耐热裂和腐蚀性好,焊接金属为X低碳奥氏体组织,适用于低碳钢与不锈钢的异种金属焊接 | ||||
310 | ER310 | <=0.12 | 0.35 | 1.8 | 26 | 21 | <=0.30 | <=0.015 | <=0.015 | 熔金含25Cr-20Ni,多用于310S不锈钢的焊接比KMS,309更适合异种金属焊接及自硬性高的合金钢和高碳钢之焊接 | ||
312 | ER312 | <=0.12 | 0.4 | 1.8 | 30 | 9 | 0.3 | <=0.025 | <=0.015 | 用异种钢之焊接,其裂纹敏感度低,故焊接覆面钢等钢材,不锈钢里衬,焊接困难或易发生气孔 | ||
316L | ER316L | <=0.02 | 0.5 | 1.8 | 18.5 | 11.5 | 0.4 | 2.6 | <=0.025 | <=0.015 | 焊接18Cr-12Ni-Mo2X低碳不锈钢,焊接工艺性好,抗晶间腐蚀性能X良 | |
316LSi | ER316LSi | <=0.02 | 0.8 | 1.8 | 18.5 | 12 | 0.045 | 2.7 | <=0.025 | <=0.015 | 焊接18Cr-12Ni-Mo2X低碳不锈钢,焊接工艺性好,抗晶间腐蚀性能X良,由于增加了Si的含量,焊接操作性及熔金流动性更佳 | |
317L | ER317L | 0.02 | 0.4 | 1.8 | 19 | 13.5 | 3.6 | X低碳含量及含Mo高,抗晶间腐蚀,高温强度大 |