G302不锈钢焊条型号GB/T：E430-16相当于AWS：E430-16说明：钛钙型的Cr17不锈钢焊条，交直流两用。用途：用于耐硝酸耐蚀、耐热的Cr17不锈钢结构熔敷金属化学成分∕%C≤0.10Mn≤0.10Si≤0.90Cr15.0-18.0Ni≤0.6Mo≤0.75Cu≤0.75)