Corrosion-resistant matrix-strengthened alloy

Details Corrosion-resistant matrix-strengthened alloy Corrosion-resistant matrix-strengthened alloy

1976-02-17

1977-09-27

Steiner, Arthur J.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75122, 75125, 75128E, 148 31, 148 37, C22C 3002, C22C 3806, C22C 3842

Patent

active

040509281

ABSTRACT:
Iron-based alloy composition containing special proportions of nickel, chromium, aluminum, copper and carbon provides good corrosion-resistance characteristics for service in caustic media, e.g., sodium hydroxide, chloride media, e.g., magnesium chloride, caustic-chloride media, e.g., sodium hydroxide-sodium chloride mixtures, and also when exposed to some acid media, e.g., nitric acid. Special utility particularly includes resistance to stress-corrosion-cracking in hot caustic and chloride media. Alloy has good workability for production of wrought products such as plate, bar and sheet and is also suitable for making corrosion-resistant castings and welded structures, e.g., chemical plant equipment.

REFERENCES:
patent: 2553330 (1951-05-01), Post
patent: 3303023 (1967-02-01), Dulis et al.
patent: 3362813 (1968-01-01), Ziolkowski
patent: 3674468 (1972-07-01), Ota
patent: 3811875 (1974-05-01), Goda, Jr. et al.
patent: 3837846 (1974-09-01), Becker et al.
patent: 3900316 (1975-08-01), Forbes Lener
patent: 3926620 (1975-12-01), Kowaka
patent: 3989514 (1976-11-01), Fujioka

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