OK68.25是一款可用于焊接诸如13Cr4NiMo牌号铸件等抗腐蚀性马氏体及马氏体-铁素体热轧钢、锻制钢和铸钢的焊条。TypicalTensilePropertiesPWHT600°C8hElongationTensileStrengthYieldStrength保护气体StressRelievedTemperatureStressRelievedTestingTime17%900MPa680MPaISO--StressrelievedElongationTensileStrengthYieldStrength保护气体StressRelievedTemperatureStressRelievedTestingTime---AWS600°C1hr夏比V型缺口冲击性能PWHT600°C8hImpactValueTestingTemperature保护气体65J20°CISO60J0°CISO55J-20°CISO焊缝金属分析MnMnMoCSiNiCr0.6%-----MoMnMoCSiNiCr-0.6%----CMnMoCSiNiCr--0.04%---SiMnMoCSiNiCr---0.4%--NiMnMoCSiNiCr----4.5%-CrMnMoCSiNiCr-----12.2%熔敷数据Fusiontimeperelectrodeat90%Imaxkgweldmetal/kgelectrodesNumberofelectrodes/kgweldmetal安培熔敷率电压V直径63sec0.64kg3590-150A1.6kg/h28V3.2x450mm73sec0.66kg22110-190A2.2kg/h28V4.0x450mm86sec0.67kg14140-250A3.1kg/h27V5.0x450mm)