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TB/T2374—1999《铁道机车车辆用耐候钢焊条和焊丝》的内容已不能满足规范铁道车辆车体用钢焊接材料的需要,需要对其进行修订。TB/T2374—2008《铁道车辆用耐大气腐蚀钢及不锈钢焊接材料》代替了TB/T2374—1999,增加高强度耐大气腐蚀钢焊接材料及铁路货车车体用不锈钢气体保护焊丝的相关内容,取消部分小用量焊材,提高熔敷金属冲击功的指标,对J506NiCrCu焊条化学成分进行适当调整,取消熔敷金属横向冷弯性能要求和焊条焊缝射线探伤要求,规范了试验方法的相关要求。
TB / T2374-1999 “Weather-resistant steel electrodes and welding wire for railway rolling stock” can not meet the requirement of standardizing the steel welding materials for bodywork of railway vehicles and need to be revised. TB / T2374-2008 “Atmospheric Corrosion Resistant Steel and Stainless Steel Welding Materials for Railway Vehicles” instead of TB / T2374-1999, to increase the content of high strength atmospheric corrosion resistant steel welding materials and stainless steel gas shielded welding wire for railway wagon body, cancel Part of the small amount of welding consumables to improve the deposited metal impact energy indicators, J506NiCrCu electrode chemical composition of the appropriate adjustments to cancel the deposited metal transverse cold bending performance requirements and welding seam weld ray inspection requirements, standardize the test methods of the relevant requirements.