Austenitic stainless steel for low temperature service

Details Austenitic stainless steel for low temperature service Austenitic stainless steel for low temperature service

1984-07-03

1986-02-04

Rutledge, L. Dewayne

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

75128N, 75125, C22C 3858

Patent

active

045683875

ABSTRACT:
An austenitic stainless steel particularly adapted for low temperature applications and having good low temperature properties; the steel consists essentially of, in weight percent, carbon 0.03 max., manganese 6.4 to 7.5, silicon up to 1%, chromium 16 to 17.5, nickel 4 to 5.0, copper up to 1%, nitrogen 0.13 to 0.20, and balance iron. The steel is characterized by minimum properties of 17% minimum elongation, 0.025 inch lateral expansion and tensile strength of 175,000 psi at a temperature of -320.degree. F. and an M.sub.d30 temperature of -10.degree. C. or lower.

REFERENCES:
patent: 3615366 (1971-10-01), Allen
patent: 3645725 (1972-02-01), Denhard, Jr. et al.

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