High strength spring steel

Details High strength spring steel High strength spring steel

1991-12-09

1993-02-02

Yee, Deborah

Alloys or metallic compositions

Ferrous

Chromium containing, but less than 9 percent

148908, C22C 3822, C22C 3824

Patent

active

051836343

ABSTRACT:
Disclosed is a high strength spring steel consisting of, in weight percentage, 0.50 to 0.70% C, 1.00 to 2.50% Si, 0.30 to 1.20% Mn, 0.80 to less than 1.20% Cr, 0.05 to 0.3% Mo, 0.05 to 0.30% V, 0.01 to 0.30% Nb, 0.005 to 0.100% Al and the balance being Fe and unavoidable impurities. The steel of the present invention has a high hardness coupled with high toughness and is very useful, especially for springs used in suspension devices or other various industrial machines.

REFERENCES:
patent: 5118469 (1992-06-01), Abe et al.

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