Formable, temperature-resistant martensitic steel having enhance

Details Formable, temperature-resistant martensitic steel having enhance Formable, temperature-resistant martensitic steel having enhance

1984-12-14

1986-11-11

Rutledge, L. Dewayne

Alloys or metallic compositions

Ferrous

Chromium containing, but less than 9 percent

428938, 148 165, E22C 3812

Patent

active

046220810

ABSTRACT:
An alloy steel composition is disclosed which has characteristics of (a) enhanced resistance to hardness degradation under high temperatures and/or enhanced resistance to sliding wear and contact fatigue under conditions of poor lubrication, (b) ease of softening for formability and machinability, and (c) ease of heat treating for hardening with austenitizing (or carburizing) at a temperature of 950.degree.-960.degree. C. and tempering at a temperature at or below 600.degree. C. The composition comprises essentially, by weight, carbon--0.15-0.30%, Mo--2.0-3.5%, V--0-0.45%, Cr--0-0.75%, Mn--0.25-0.50%, Si--0.15-0.35%, and remainder Fe.

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