不锈钢和碳钢焊接? 304不锈钢与碳钢焊接用a302,316与碳钢用a312。16mnr与304用a062。 by the way, sch40 is of the material grade and defines different thickness, no issue about may or mayn't, need to control different electric current when welding as the materials have not same thickness. [ ]查看更多