Line pipe metal arc welded with wire alloy

Details Line pipe metal arc welded with wire alloy Line pipe metal arc welded with wire alloy

1997-03-24

1998-03-03

Yee, Deborah

Alloys or metallic compositions

Ferrous

Chromium containing, but less than 9 percent

420110, 148909, C22C 3828

Patent

active

057230897

ABSTRACT:
A wire for gas metal arc welding containing 0.01 to 0.06 wt % of C, 0.10 to 0.60 wt % of Si, 0.9 to 3.1 wt % of Mn, 0.7 to 2.0 wt % of Cr, 0.005 to 0.06% of Ti, not greater than 0.08 wt % of Al and if necessary, 0.05 to 0.30 wt % of Cu, and the balance of Fe and unavoidable impurities. This wire improves the selective corrosion resistance and the low temperature toughness of the resulting weld metal, and is particularly suitable for circumferential welding of line pipes for transporting CO.sub.2 -containing petroleum, natural gases or CO.sub.2.

REFERENCES:
patent: 3802874 (1974-04-01), Nelson et al.
patent: 3860777 (1975-01-01), Sawhill
Patent Abstracts of Japan, vol. 17, No. 037 (C-1019), Jan. 25, 1993 & JP 04 254521 A (Nippon Steel Corp.), Sep. 9, 1992.
Journal of the Japanese Association for Petroleum Technology Oct. 19, 1984.

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