Large, warm worked, alloy article

C - Chemistry – Metallurgy – 22 – C

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148/31

C22C 38/58 (2006.01) C22C 38/00 (2006.01) C22C 38/44 (2006.01)

Patent

CA 1238841

ABSTRACT OF THE DISCLOSURE A large, austenitic, non-magnetic, stainless steel, alloy article which has been significantly warm worked between about 1500 F and 1650 F but not subsequently annealed, which has a 0.2% yield strength of at least about 90 ksi, and which, when formed into a U-bend, does not undergo stress corrosion cracking within about 700 hours in boiling saturated aqueous sodium chloride containing 2 weight percent (w/o) ammonium bisulfite. The alloy of the article consists essentially of about: Image and the balance is essentially iron. A preferred alloy for this article contains about: Image

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