Corrosion resistant alloy

Details Corrosion resistant alloy Corrosion resistant alloy

1987-04-23

1989-01-03

Rutledge, L. Dewayne

Alloys or metallic compositions

Containing over 50 per cent metal but no base metal

Iron containing

420584, 420587, C22C 3002

Patent

active

047956100

ABSTRACT:
An air-meltable, castable, weldable, non-magnetic alloy resistant to corrosion in chloride-containing fluids as well as in many other corrosive streams. The alloy consists essentially of between about 20.7% and about 27.2% by weight nickel, between about 19.3% and about 22.7% by weight chromium, between about 0.94% and about 2% by weight molybdenum, between about 2.6% and about 3.2% by weight copper, between about 3.2% and about 4.2% by weight manganese, between about 0.27% and about 2.02% niobium, between about 0.10% and about 0.25% by weight nitrogen, up to about 0.08% by weight carbon, up to about 0.9% by weight silicon, up to about 0.7% by weight titanium, up to about 1% by weight vanadium, up to about 0.6% by weight of a rare earth component selected from the group consisting of cerium, lanthanum, and misch metal, up to about 1% by weight cobalt, and the balance essentially iron. The sum of the nickel and cobalt contents should be between about 21.7% and about 27.2% by weight.

REFERENCES:
patent: Re27226 (1971-11-01), Moskowitz et al.
patent: 3811875 (1974-05-01), Goda, Jr. et al.
patent: 4141762 (1979-02-01), Yamaguchi et al.
patent: 4329173 (1982-05-01), Culling

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