Alloys or metallic compositions – Nickel base – Chromium containing
Patent
1989-02-21
1990-03-06
Dean, R.
Alloys or metallic compositions
Nickel base
Chromium containing
148 115N, 148428, C22C 1905
Patent
active
049064371
ABSTRACT:
For use in making components which are required to have a very high resistance to uniform corrosion and against pitting and crevice corrosion under very highly corrosive conditions encountered in up to date chemical process technology and environmental protection technology, for instance, in flue gas desulfurizing plants for concentrating sulfuric acid, and which are required to be manufactured satisfactorily by conventional hot and cold forming processes an alloy is employed which contains (in % by weight) 22.0 to 24.0 chromium, 15.0 to 16.5 molybdenum, up to 0.3% tungsten, up to 1.5% iron, up to 0.4% vanadium, 0.1 to 0.4% aluminum, 0.001 to 0.04% magnesium and 0.001 to 0.01 calcium, balance nickel and inevitable accompanying elements and impurities.
REFERENCES:
patent: 3650734 (1972-03-01), Kantor
patent: 4129464 (1978-12-01), Matthews
Chemical Abstracts vol. 104, 1986 p. 312, 104:153929a.
Chemical Abstracts vol. 102, 1985, p. 254, 102:170738p.
Heubner Ulrich
Kohler Michael
Rockel Manfred
Wallis Ernst
Dean R.
Dubno Herbert
VDM Nickel-Technologie Aktiengesellschaft
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