Corrosion-resistance nickel alloy

Details Corrosion-resistance nickel alloy Corrosion-resistance nickel alloy

1980-07-10

1985-08-06

Dean, R.

Metal treatment

Stock

Nickel base

148428, C22C 1905

Patent

active

045334145

ABSTRACT:
A nickel-base alloy containing principally chromium molybdenum and tungsten is disclosed. The alloy is especially resistant to corrosion in a variety of corrosive media including oxidizing acids and reducing acids; furthermore, the alloy is not subject to localized corrosive attack, known as the "pitting" test. The alloy nominally contains 22% chromium, 13% molybdenum, 3% tungsten, 3% iron and the balance nickel plus small amounts of adventitious elements and impurities. Molybdenum and tungsten must be present in a ratio of about 4 to 1 respectively for optimum benefits of the invention.

REFERENCES:
patent: 1836317 (1931-12-01), Franks
patent: 3203792 (1965-08-01), Scheil et al.

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