Welding wire for use in submerged arc welding of Cr-Mo steels

Details Welding wire for use in submerged arc welding of Cr-Mo steels Welding wire for use in submerged arc welding of Cr-Mo steels

1983-10-25

1985-12-31

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75126C, 75126D, 75126F, 75126P, 75126J, 75128F, 75128N, 75128Z, 75128T, 75128W, C22C 3844

Patent

active

045618887

ABSTRACT:
A welding wire for use in submerged arc welding of Cr-Mo steels comprising less than 0.25% C, less than 0.60% Si, 0.15-1.50% Mn, 0.50-10.0% Cr and 0.40-2.50% Mo on the basis of the weight ratio comprises 0.05-0.19% C, less than 0.60% Si, less than 1.6% Mn, 0.50-10.5% Cr and 0.30-2.50% Mo as the basic elements boron and nitrogen added thereto as the essential elements each in the range of 0.0001-0.25% B and 0.010-0.040% N; and at least one of titanium, zirconium and aluminum further incorporated therein each in the range of 0.01-0.30% Ti, 0.05-0.30% Zr and less than 0.40% Al, while being adjusting such that the sum of the elements: Ti+Al+Zr+10B lies within a range between 0.003-0.40% on the basis of the weight ratio. The welding wire of the novel composition can provide weld alloy steels with high strength and excellent toughness even at low temperature.

REFERENCES:
patent: 3328211 (1967-06-01), Nakamura et al.
patent: 3664830 (1972-05-01), Kambayashi et al.
patent: 3847600 (1974-11-01), Mimino et al.
patent: 4068113 (1978-01-01), Godai et al.
patent: 4436554 (1984-05-01), Omae et al.
patent: 4461811 (1984-07-01), Borneman et al.

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