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15Mn26A14钢是无镍铬的超低温用钢,最低使用温度为-253℃,工作介质为液态氢、微量硫化氢、石油气,工作压力40～60公斤/厘米~2。金属研究所与上海东风电焊条厂、上海粉剂厂等单位对该钢种进行了焊接试验,并拟制了相应的Fe-Mn-Al焊条、埋弧焊丝和焊剂。试验证明,该钢种的可焊性较好,可以用多种方法进行焊接,如手工电弧焊、埋弧自动焊、钨极氩弧焊等。
15Mn26A14 steel is non-nickel-chromium ultra-low temperature steel, the lowest temperature of -253 ℃, the working medium is liquid hydrogen, trace hydrogen sulfide, petroleum gas, working pressure 40 ~ 60 kg / cm ~ Metal Research Institute and Shanghai Dongfeng electrode factory, Shanghai Powder Factory and other units of the steel were welded test, and prepared the corresponding Fe-Mn-Al electrode, submerged arc welding wire and flux. Test proved that the weldability of the steel is better, you can use a variety of methods for welding, such as manual arc welding, submerged arc welding, TIG welding.