Corrosion-and-wear-resistant cobalt-base alloy

Details Corrosion-and-wear-resistant cobalt-base alloy Corrosion-and-wear-resistant cobalt-base alloy

1989-04-17

1991-03-26

Dean, R.

Alloys or metallic compositions

Cobalt base

Chromium containing

148425, 148442, 420436, 420582, 420585, 420587, 420588, C22C 1907

Patent

active

050027310

ABSTRACT:
Disclosed is a cobalt-base alloy that has a valuable combination of both corrosion- and wear-resistant properties. The alloy nominally contains, in percent by weight, 25.5 chromium, 8.5 nickel, 3.0 iron, 5 molybdenum, 2 tungsten, 0.40 silicon, 0.75 manganese, 0.06 carbon, 0.08 nitrogen and the balance cobalt plus normal impurities normally found in alloys of this class. The alloy may also contain copper and certain "carbide formers" (i.e., columbium, tantalum, titanium, vanadium and the like) to tie up excess carbon and/or nitrogen that may be present.

REFERENCES:
patent: 3865585 (1975-02-01), Rademacher

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