CAST AGE-HARDENABLE AUSTENITIC STEELS

Technical Report · Tue Apr 01 04:00:00 EST 1958

OSTI ID:4342528

Lange, E A; Howells, N C; Bukowski, A

Cr--Ni--P, Cr-Mn, and Cr-- Ni--Mn--V types of agehardenable, austenitic steels which have high strength characteristics in wrought forms were investigated for use as high-strength, nonmagnetic steels for castings. A Cr-N-- P austenitic steel with 0.3% C and 0.25% P developed yield strengths at the 100,000 psi level. The Cr--Ma type of austenitic steels containing phosphorus or vanadium were age hardenable. but castings of these alloys were brittle when they were heat treated to high strength levels. Modifying the wrought Cr --Ni --Mn -- V composition resulted in an alloy with good ductility and yield strengths at the 100,000 psi level. A fourth type of age-hardenable, austenitic steel, Mn--V, containing a minimum of alloying elements was developed. The hardness and tensile properties of four compositions which were cast and heat treated to yield strengths at the 100.000 psi level are reported. (auth)

• Research Organization: Naval Research Lab., Washington, D.C.
• NSA Number: NSA-12-008449
• OSTI ID: 4342528
• Report Number(s): NRL-5140
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AUSTENITE
BRITTLENESS
CARBIDES
CASTING
CHROMIUM ALLOYS
DUCTILITY
HARDNESS
HEAT TREATMENTS
MANGANESE ALLOYS
MINERALOGY, METALLURGY, AND CERAMICS
NICKEL ALLOYS
PHOSPHATES
STEELS
TEMPERING
TENSILE PROPERTIES
USES
VANADIUM ALLOYS