Nonmagnetic steel for cryogenic use

Details Nonmagnetic steel for cryogenic use Nonmagnetic steel for cryogenic use

1986-09-29

1988-11-15

Yee, Deborah

Alloys or metallic compositions

Ferrous

Nine percent or more chromium containing

420584, C22C 3850

Patent

active

047848278

ABSTRACT:
A nonmagnetic steel for cryogenic use consisting essentially of, by weight, 23.0 to 30.0% of Ni, 13.0 to 16.0% of Cr, 3.0 to 7.4% of Mn, 1.5 to 3.0% of Ti, 1.0 to 3.0% of Mo, and the remainder being Fe, said steel containing not more than 0.02% of C, not more than 0.005% of P, not more than 0.005% of S, not more than 0.2% of Si and not more than 0.002% of B as trace elemental impurities. In a preferred embodiment, it further comprises not more than 0.5% by weight of Al and/or not more than 0.5% by weight of V. The steel has high strength and toughness in a cryogenic environment and excellent weldability.

REFERENCES:
patent: 3201233 (1962-06-01), Hull

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