Steel wire for a spring and method for the production thereof

C - Chemistry – Metallurgy – 21 – D

Patent

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148/34

C21D 8/06 (2006.01)

Patent

CA 1242960

ABSTRACT OF THE DISCLOSURE A steel wire, and a method for producing the same, for use in the manufacture of a chassis or suspension automotive spring having a high sag resistance. In accordance with the invention, after a heat treatment is effected, strain is imposed to the steel wire so as to thereby improve the sag resistance. The strain may be imposed either. during tempering or at room temperature following tempering.

475039

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