E2594双相不锈钢焊条E2594电焊条价格类别AWS型号元素化学成份百分比CSiMnCrNiMo不锈钢焊条308L/MVRE308L-170.020.81.020.010.5308L/MVRE308L-150.030.21.720.010.0308L/MVRE308L-160.030.31.520.010.0308/308HE308H-170.060.71.120.010.0347/MVNbE347-170.020.80.819.510.0347/MVNbE347-150.060.21.719.510.0316L/SKRE316L-170.020.81.118.512.02.8316L/SKRE316L-150.030.21.718.512.02.8316L/SKRE316L-160.020.31.419.012.02.8316/316HE316H-170.060.81.019.012.02.8)