Stock material or miscellaneous articles – All metal or with adjacent metals – Having metal particles
Patent
1979-01-26
1980-09-02
Rutledge, L. Dewayne
Stock material or miscellaneous articles
All metal or with adjacent metals
Having metal particles
75128A, 75128C, 75251, 148 38, C22C 3802, C22C 3858
Patent
active
042206898
ABSTRACT:
An austenitic stainless steel which is 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 phoshorus, 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 powder metallurgy techniques.
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Schumacher William J.
Tanczyn Harry
Armco Inc.
Roy Upendra
Rutledge L. Dewayne
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