結構鋼實心、藥芯焊絲品名類別AWS型號基本化學成份典型值（%）熔敷金屬力學性能CMnSiS≤P≤CrMoNiCuσ0.2(MPa)δb(MPa)δ(%)結構鋼實心、藥芯焊絲UnionI52ER70S-60.081.500.850.0250.025————44056025UnionK40ER70S-G(～3)0.101.100.350.0250.025————36044025UnionK52ER70S-60.081.500.850.0250.025————44055024UnionSG2-HER70S-60.081.400.800.0250.025————43056024UnionK56ER70S-60.081.651.050.0250.025————48058024UnionSG3-HER70S-60.081.651.000.0250.025————47058024ThyseenRob2ER70S-60.081.500.850.0250.025————45057024ThyseenRob3ER70S-60.081.701.000.0250.025————49060024ThyseenMV70E70C-6MH40.051.400.450.0250.025————42052024ThyseenRV71E71T-1MJH40.061.400.500.0250.025————42052024ThyseenRV72E71T-1H40.061.300.450.0250.025————

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