Austenitic stainless steel combining strength and resistance to

Details Austenitic stainless steel combining strength and resistance to Austenitic stainless steel combining strength and resistance to

1987-02-26

1989-04-18

Yee, Deborah

Alloys or metallic compositions

Ferrous

Nine percent or more chromium containing

420 57, 420 58, 148327, C22C 3858

Patent

active

048225568

ABSTRACT:
A nonmagnetic austenitic stainless steel and articles such as drill collars or boat shafts fabricated therefrom, the steel having a 0.2% yield strength of at least 100 ksi (689 N/mm.sup.2), improved resistance to intergranular stress corrosion, good ductility, good corrosion resistance and low magnetic permeability, and consisting essentially of, in weight percent, from greater than 0.05% to about 0.10% carbon, greater than 14% to about 18% manganese, about 15% to about 20% chromium, about 1% to about 3.5% nickel, about 0.3% to about 0.55% nitrogen, about 0.10% to about 0.5% vanadium, about 1.0% maximum copper, about 1.0% maximum molybdenum, about 1.0% maximum silicon, about 0.04% maximum phosphorous, about 0.03% maximum sulfur, and balance essentially iron.

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Corrosion-Nace vol. 30, No. 1 pp. 1-12, Jan. 1974.
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