Method of treating steel for a vehicle suspension spring having

Details Method of treating steel for a vehicle suspension spring having Method of treating steel for a vehicle suspension spring having

1984-03-02

1986-03-04

Skiff, Peter K.

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

148150, C21D 902

Patent

active

045740160

ABSTRACT:
A steel for use in a vehicle suspension spring having a good sag-resistance comprising by weight 0.80% carbon, 1.50-2.50% silicon, 0.50-1.50% manganese, a member or members selected from a group consisting of 0.05-0.50% vanadium, 0.05-0.50% niobium and 0.05-0.50% molybdenum, the remainder being iron together with impurities. The steel may further contain a member or members selected from a group consisting of 0.0001-0.01% 0.20-1.00% chromium, and not greater than 0.0008% nitrogen.

REFERENCES:
patent: 3528088 (1970-09-01), Seghezzi et al.
patent: 4336081 (1982-06-01), Hijikata et al.
patent: 4409026 (1983-10-01), Yamada et al.

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