Corrosion resistant nickel base alloy

Alloys or metallic compositions – Nickel base – Chromium containing

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420453, 420448, C22C 1905

Patent

active

054240298

ABSTRACT:
A nickel base alloy is provided having excellent hot and cold workability and superior corrosion resistance to a variety of media including deep sour gas well environments and highly corrosive oxidizing environments. The alloy consists essentially of, by weight, about 27 to 33% chromium, about 8 to 12% molybdenum, about 1 to 4% tungsten, and the balance nickel. The alloy may also contain as impurities or as additions, up to about 1.5% iron, up to about 0.15% carbon, up to about 1% aluminum, up to about 1% titanium and up to about 2% columbium.

REFERENCES:
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patent: 3918964 (1975-11-01), Baldwin et al.
patent: 4246048 (1981-01-01), Kawai et al.
patent: 4410489 (1983-10-01), Asphahani
patent: 4476091 (1984-10-01), Klarstrom
patent: 4533414 (1985-08-01), Asphahani
Corrosion of Nickel-Base Alloys-D. F. Bickford & R. A. Corbett Oct. 23-25, 1984-Int. Conf. on Corrosion of Nickel-Base Alloys, pp. 59-67.
A Comparison of Corrosion Resistant Alloys in Severe Environments R. J. Gerlock & D. T. Manolakos-Mar. 25-29, 1985; Corrosion 85; pp. 166/1-166/11.
Corrosion Evaluation of Alloys for Nuclear Waste Processing-R. A. Corbett, D. F. Bickford, W. S. Morison Corrosion/86 Conference.
High Nickel, Chromium-Molybdenum Alloys-Are some New Alloys More Corrosion Resistant than the Old-R. A. Corbett & W. S. Morrison Mar. 21-25, 1988 Corrosion/88 Conference.

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