C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
75/139, 148/50.2
C22C 38/00 (2006.01) C21D 1/78 (2006.01) C22C 38/04 (2006.01)
Patent
CA 1171699
ABSTRACT A ferritic cryogenic steel which has a relatively low (about 4-6%) manganese content and which has been made suitable for use at cryogenic temperatures by a thermal cycling treatment followed by a final tempering. The steel include 4-6% manga- nese, 0.02-0.06% carbon, 0.1-0.4% molybdenum and 0.3% nickel.
357401
Morris John W. Jr.
Niikura Masakazu
Meredith & Finlayson
United States (government Of The) Of America As Repres Ented By
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