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Coated welding electrode having resistance to ductility dip cracking, and weld deposit produced therefrom
Coated welding electrode having resistance to ductility dip cracking, and weld deposit produced therefrom
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机译:具有抗延展性开裂的涂层的焊条,以及由此产生的焊缝
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摘要
A Ni—Cr—Fe alloy in the form of a weld deposit, a welding electrode and flux and a method of welding utilizing the Ni—Cr—Fe alloy. The alloy comprises in % by weight: 27-31 Cr, 6-11 Fe, 0.01-0.04 C, 1.5-4 Mn, 1-3 Nb, up to 3 Ta, 1-3 (Nb+Ta), 0.01-0.50 Ti, 0.0003-0.02 Zr, 0.0005-0.004 B, 0.50 Si, 0.50 max Al, 0.50 Cu, 1.0 W, 1.0 Mo, 0.12 Co, 0.015 S, 0.015 P, 0.01 max Mg, balance Ni plus incidental additions and impurities. The welding method includes welding using a short arc wherein the distance from the electrode tip to the weld deposit is maintained at less than 0.125 inch.
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