M-312焊丝类别品名AWS型号焊道金属化学成分金属机械性能主要用途CSiMnNiCrMo抗拉强度延伸率MIG/TIG焊丝T-2209ER22090.010.41.7522.78.73.284028石油化工、蒸馏管、海洋平台T-308LER308L0.020.381.9019.89.857044适合于铬18%-镍8%低碳钢的焊接，如同AISITYPE304L和308LT-308LSiER308LSi0.020.751.9519.710.459042适合于改善填充金属的工艺性，适合于铬18%-镍8%低碳钢的焊接T-309LER309L0.010.401.9223.213.857042适合于锻造或铸造形状相同合金母材的焊接，适合于把TYPE304连接在碳钢、还适合于TYPE304包层钢的包层面焊接T-309LSiER309LSi0.020.752.2823.213.759040适合于锻造或铸造形状相同合金母材的焊接，适合于把TYPE304连接在碳钢、还适合于TYPE304包层的包层面焊接T-310ER3100.100.101.7326.620.960040适合于相同成分的母材焊接T-316LER316L0.020.391.8918.611.82.257040适合于要求耐蚀性的铬18%-镍12%低碳钢的焊接T-316LSiER316LSi0.020.761.8518.712.22.357039适合于改善填充金属的工艺性，适合于铬18%-镍12%低碳钢的焊接T-347ER3470.050.462.2419.39.30.664041适合于18%-镍9%-钶钢，铬18%-9%镍-钛钢T-410ER4100.020.340.3912.854035适合于铬13%的钢材焊接T-430M-4300.020.330.4416.651030适合于铬17%的钢和包层钢403、405型的包层面的焊接)