Alloys or metallic compositions – Ferrous – Nine percent or more chromium containing
Patent
1989-03-03
1990-08-07
Roy, Upendra
Alloys or metallic compositions
Ferrous
Nine percent or more chromium containing
148327, 420 58, 420 59, C22C 3858, C22C 3926
Patent
active
049466445
ABSTRACT:
An austenitic Fe-Cr-Mn-N stainless steel is characterized by a combination of improved castability in terms of yield and speed and the development of excellent strength and ductility levels in the cold worked condition. The low alloy stainless steel consists essentially of, in weight percent, from about 13% to 17% chromium, about 8% to 12% manganese, about 0.05% to 0.2% carbon, about 0.15% to 0.23% nitrogen, about 1.5% maximum nickel, about 1% maximum molybdenum, about 1% maximum silicon, about 1% maximum copper and balance essentially iron. The steel composition is particularly suited for cold-drawn wire which develops an ultimate tensile strength of at least about 250 ksi with elongations of at least about 10%.
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Daniels James A.
Schumacher William J.
Baltimore Specialty Steels Corporation
Bunyard R. J.
Fillnow L. A.
Johnson R. H.
Roy Upendra
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