Formable, temperature-resistant martensitic steel having...

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

C - Chemistry, Metallurgy

21

D

75/126, 148/43

C21D 1/18 (2006.01) C21D 1/32 (2006.01) C21D 1/72 (2006.01) C21D 1/78 (2006.01) C22C 38/12 (2006.01) C22C 38/24 (2006.01) C23C 8/22 (2006.01) C23C 14/06 (2006.01) C23C 16/34 (2006.01)

Patent

CA 1271649

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 950-960°C and tempering at a temperature at or below 600°C. The composition comprises essentially, by weight, carbon - .15-.30%, Mo - 2.0-3.5%, V - 0-.45%, Cr - 0-.75%, Mn - .25-.50%, Si - .15-,35%, and remainder Fe.

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