Accession Number:

AD0274805

Title:

SEMIAUSTENITIC PRECIPITATION-HARDENABLE STAINLESS STEELS

Descriptive Note:

Corporate Author:

BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER

Personal Author(s):

Report Date:

1961-12-06

Pagination or Media Count:

141.0

Abstract:

The semiaustenitic precipitation-hardenable stainless steels remain austenitic on cooling rom a solution heat treatment at about 1950 F. In this form they are readily fabricable. Subsequent treatment at about 1400 or at about 1725 F depletes the austenite of Cr and C to the extent that martensite forms on cooling to room temperature or -100 F, respectively. Final hardening is effected by tempering, or aging, at 750 to 1100 F. The semiaustenitic precipitation-hardenable stainless steels may be obtained as transformed at the mill by cold rolling. In this condition they lack the good formability of solution-heat-treated material. However, the fabricator need only temper them to obtain very high strengths. These steels have a combination of good formability, high strength, and excellent corrosion resistance that is not easily matched by other materials.

Subject Categories:

  • Metallurgy and Metallography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE