DualShield69isESAB'snewall-positional,lowhydrogenrutilecoredwireforusewithAr/CO2shieldinggasmixtures.Designedforhighintegrityweldingofhighstrengthsteelsthiswireproducestoughweldmetaldownto-60oCandmeetsthelowdiffusiblehydrogengradeofH4.Highstrengthsteelsareincreasinglybeingusedastheyofferthedesignerthepossibilityofmakinglighter,higherperformancestructureswithgoodoverallcosteffectivenesstogetherwithlowerenvironmentalimpacts.Theuseofhigh-strengthsteelcanmeanlowerfabricationcosts,increasedpayloads,moredurableproducts,moreeffectivespaceutilisationandincreasedsafety.TypicalTensilePropertiesAsweldedElongationTensileStrengthYieldStrength20%790MPa740MPa夏比V型缺口冲击性能AsweldedImpactValueTestingTemperature65J-40°C58J-60°C焊缝金属分析MnMnMoCSiNi1.25%----MoMnMoCSiNi-0.4%---CMnMoCSiNi--0.095%--SiMnMoCSiNi---0.34%-NiMnMoCSiNi----2.8%熔敷数据安培熔敷率电压V直径送丝速度150-350A2.1-7.5kg/h21-32V1.2mm5.6-19.8m/min)