耐大气腐蚀钢电焊条(WeatherproofSteels***AWElectrode)产品牌号分类标准及标号基本化学成份典型值（%）热处理σ0.2σbδ5AKWAWSA5.5:EN499:CMnSiCrMoNiS≤P≤Cu≤MPaMPa%℃JSHPatinaxKbE7015-GE383Z1NiCuB420.550.650.30--0.600.0250.0250.40SR37045027+20160)