OK74.46是一款含有0.5%Mo合金化成分的LMA焊条，可用于焊接压力容器钢种。使用特性非常适合倾斜位置的接头焊接。其药皮成分经过针对低电流焊接的优化，因而OK74.46非常适合用于管道的焊接。TypicalTensilePropertiesPWHT620°C1hElongationTensileStrengthYieldStrength保护气体27%560MPa460MPaISO---AWS夏比V型缺口冲击性能PWHT620°C1hImpactValueTestingTemperature保护气体175J20°CISO焊缝金属分析MnMnMoCSiCr0.77%----MoMnMoCSiCr-0.57%---CMnMoCSiCr--0.05%--SiMnMoCSiCr---0.38%-CrMnMoCSiCr----0.04%熔敷数据Fusiontimeperelectrodeat90%Imaxkgweldmetal/kgelectrodesNumberofelectrodes/kgweldmetal安培熔敷率电压V直径40sec0.59kg136.055-80A0.7kg/h22V2.0x300mm55sec0.59kg73.075-110A0.9kg/h23V2.5x350mm66sec0.54kg53105-150A1kg/h23V3.2x350mm81sec0.59kg37.0105-150A1.2kg/h25V3.2x450mm90sec0.65kg22.5140-200A1.8kg/h26V4.0x450mm104sec0.65kg14.5190-270A2.4kg/h27V5.0x450mm)