Metal treatment – Compositions – Heat treating
Patent
1978-05-30
1979-03-27
Steiner, Arthur J.
Metal treatment
Compositions
Heat treating
75128A, 75128C, C22C 3802, C22C 3858
Patent
active
041464125
ABSTRACT:
An austenitic stainless steel which in wrought or cast, and annealed, condition exhibits excellent galling resistance, excellent stress corrosion resistance in chloride-containing environments, good resistance against intergranular corrosion, good high temperature oxidation resistance, and a high work hardening rate. The broad composition range is, in weight percent, about 13% to about 19% chromium, about 13% to about 19% nickel, 0.5% to about 4% manganese, 3.5% to about 7% silicon, up to about 0.15% carbon, less than 0.04% nitrogen, about 0.05% maximum phosphorus, about 0.05% maximum sulfur, and balance essentially iron except for incidental impurities. The steel can be readily worked with conventional equipment and has particular utility for applications in which moving metal-to-metal contact, corrosive attack and/or elevated temperature are encountered in combination. The steel can also be cast into articles of ultimate use, or utilized in power metallurgy techniques.
REFERENCES:
patent: 2984563 (1961-05-01), Tancyzn
patent: 3615368 (1971-10-01), Baumel
patent: 3663215 (1972-05-01), Tanczyn
patent: 3785787 (1974-01-01), Yokota et al.
patent: 3806337 (1974-04-01), Jones
patent: 3900316 (1975-08-01), Jones
patent: 3912503 (1975-10-01), Schumacher et al.
patent: 4002510 (1977-01-01), Wilde
patent: 4063935 (1977-12-01), Fujioka et al.
Steel Products Manual, 12/74, pp. 21-22.
Schumacher William J.
Tanczyn Harry
Armco Steel Corporation
Steiner Arthur J.
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