Alloys or metallic compositions – Ferrous – Nine percent or more chromium containing
Patent
1986-08-21
1988-11-15
Yee, Deborah
Alloys or metallic compositions
Ferrous
Nine percent or more chromium containing
420 43, 420 49, C22C 3840, C22C 3860
Patent
active
047848286
ABSTRACT:
A resulfurized, chromium-nickel austenitic stainless steel having improved machinability resulting from low carbon and low nitrogen contents in combination with manganese and sulfur additions. The composition of the steel consists essentially of, in weight percent, carbon plus nitrogen total up to 0.065, preferably up to 0.040 or 0.056, chromium 16 to 30, preferably 17 to 19, nickel 5 to 26, preferably 6 to 14, sulfur 0.10 to 0.45, preferably 0.10 to 0.25, more preferably 0.25 to 0.45, manganese 0.75 to 2.0, silicon up to 1, phosphorus up to about 0.20, molybdenum up to 1.0 and copper up to 1.00, and balance iron and incidental impurities.
REFERENCES:
patent: 4613367 (1986-09-01), Eckenrod et al.
Eckenrod John J.
Pinnow Kenneth E.
Rhodes Geoffrey O.
Royer William E.
Crucible Materials Corporation
Yee Deborah
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