Method of manufacturing rolled steel products with high elastic

Details Method of manufacturing rolled steel products with high elastic Method of manufacturing rolled steel products with high elastic

1980-02-26

1981-10-20

Skiff, Peter K.

Metal treatment

Process of modifying or maintaining internal physical...

Chemical-heat removing or burning of metal

75128V, 148 39, C21D 118, C22C 3846

Patent

active

042959020

ABSTRACT:
A rolled steel product is given an elastic limit of 500 to 1200 MPa by selection of a particular steel composition and a particular heat treatment. The steel contains 0.10-0.50% C, 0.90-1.50% Mn, and 0.10-0.45% Si, and optionally 0.20-0.70% Ni, 0.10-0.80% Cr, and 0.02-0.10% V. The heat treatment consists of surface quenching from above the austenitization temperature by means of a fluid, the heat remaining in the product being sufficient to temper the martensite and/or bainite in the quenched surface.

REFERENCES:
patent: 3666572 (1972-05-01), Nakagawa et al.
patent: 4016009 (1977-04-01), Economopoulos
patent: 4016015 (1977-04-01), Respen et al.

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