Spring steel of high strength and high corrosion resistance

Details Spring steel of high strength and high corrosion resistance Spring steel of high strength and high corrosion resistance

1996-01-26

1998-12-08

Yee, Deborah

Metal treatment

Stock

Ferrous

148334, 148335, 148908, C22C 3820, C22C 3840

Patent

active

058463445

ABSTRACT:
Disclosed is a spring steel for a high corrosion resistant and high strength, which exhibits an excellent drawability without softening heat treatment after hot rolling, and which has a strength of 1900 MPa or more by quenching and tempering and an excellent corrosion resistance. The spring steel contains elements of C, Si, Mn and Cr, and elements of Ni and/or Mo in suitable amounts, the balance being essentially Fe and inevitable impurities, wherein the elements satisfy the following requirement:

REFERENCES:
patent: 5183634 (1993-02-01), Abe et al.
patent: 5286312 (1994-02-01), Shimotsusa et al.
patent: 5302216 (1994-04-01), Sugita et al.
patent: 5508002 (1996-04-01), Kawaguchi et al.
Patent Abstracts of Japan, vol. 13, No. 472 (C-647) Oct. 25, 1989 and JP-A-01 184 259, Suzuki Shinichi.

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