Case-hardening alloy steel and case-hardened article made...

Details Case-hardening alloy steel and case-hardened article made... Case-hardening alloy steel and case-hardened article made...

C - Chemistry, Metallurgy

22

C

75/121, 148/31

C22C 38/44 (2006.01)

Patent

CA 1085190

ABSTRACT A carburizing alloy steel and case-hardened articles made therefrom, having high core impact strength and fracture toughness combined with high case hot hardness and temper resis- tance at 400°F (204°C), containing 0.06-0.16% carbon, 0.2-0.7% manganese, 0.5-1.5% silicpn, 0.5-1.5% chromium, 1.5-3% nickel, 1-4% copper, 2.5-4% molybdenum, up to 0.4% vanadium, and the balance iron and incidental impurities. The alloy may also contain small amounts of phosphorus, sulfur, nitrogen, aluminum, columbium, titanium, zirconium, and calcium.

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