采用13%Cr,4.5%Ni和0.5%Mo合金化的420NiMo型焊丝。该合金适用于焊接水轮机等各种应用中的类似成分马氏体和马氏体-铁素体钢种。TypicalTensilePropertiesStressrelievedElongationStressRelievedTemperatureStressRelievedTestingTimeTensileStrengthYieldStrength17%600°C2hr1000MPa930MPa22%600°C8hr870MPa770MPa夏比V型缺口冲击性能StressrelievedImpactValueStressRelievedTestingTempStressRelievedTestingTimeTestingTemperature120J600°C2hr0°C120J600°C2hr-20°C175J600°C8hr0°C165J600°C8hr-20°C焊缝金属分析MnMnMoCuCSiNiCr0.5%------MoMnMoCuCSiNiCr-0.6%-----CuMnMoCuCSiNiCr--0.1%----CMnMoCuCSiNiCr---0.02%---SiMnMoCuCSiNiCr----0.4%--NiMnMoCuCSiNiCr-----4.2%-CrMnMoCuCSiNiCr------12.4%)