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2.埋弧焊标准以及焊接材料 (1)埋弧焊接材料标准 AWS中关于埋弧焊低碳钢(A5.17-80)和低合金钢(A5.23-80)作有具体规定。其中AWS A5.23-80与A5.23-76相比,从成份上看: (a)80版中增补了Ni含量为1.60～2.10％并添加0.10～0.30％Mo的ENi4焊丝。
2. Submerged arc welding standards and welding materials (1) submerged arc welding material standards AWS submerged arc welding of low carbon steel (A5.17-80) and low alloy steel (A5.23-80) for the specific provisions. Among them, AWS A5.23-80 is compared with A5.23-76 in terms of ingredients: (a) In the 80 edition, ENi4 welding wire with Ni content of 1.60-2.10% and addition of 0.10-0.30% Mo is added.