Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1982-06-08
1984-06-26
Andrews, M. J.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75126D, 75126F, 75128T, 75128W, 75128Z, 75128G, 428683, 428685, C22C 3818
Patent
active
044564821
ABSTRACT:
A ferritic stainless steel characterized by superior crevice and intergranular corrosion resistance. The steel consists essentially of, by weight, up to 0.08% carbon, up to 0.06% nitrogen, from 25.00 to 35.00% chromium, from 3.60 to 5.60% molybdenum, up to 2.00% manganese, up to 2.00% nickel, up to 2.00% silicon, up to 0.5% aluminum, up to 2.00% of elements from the group consisting of titanium, zirconium and columbium, balance essentially iron. The sum of carbon plus nitrogen is in excess of 0.0275%. Titanium, zirconium and columbium, are in accordance with the following equation:
REFERENCES:
patent: 4119765 (1978-10-01), Pinnow et al.
patent: 4155752 (1979-05-01), Oppenheim et al.
patent: 4216013 (1980-08-01), Gemmel et al.
patent: 4255497 (1981-03-01), Bond et al.
McCunn Thomas H.
Nichol Thomas J.
Allegheny Ludlum Steel Corporation
Andrews M. J.
Viccaro Patrick J.
Yee Debbie
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