Method of cooling steel sections which are hot from rolling

Details Method of cooling steel sections which are hot from rolling Method of cooling steel sections which are hot from rolling

1997-03-27

1998-11-03

Yee, Deborah

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148660, 148661, 148663, C21D 800

Patent

active

058302930

ABSTRACT:
A method of cooling steel sections which are hot from rolling by means of shock-like cooling following the rolling process so as to form a martensitic surface layer, and by subsequently autogenously tempering this surface layer by means of core heat to obtain a tough-resistant structure with an austenitic remaining cross-section, wherein the method is used in connection with types of steel which, with uncontrolled cooling in air, would directly transform from the austenitic phase into martensite because of their alloying elements from the group Cr, Mn, Mo, Ni and other suitable elements.

REFERENCES:
patent: 4016009 (1977-04-01), Economopoulos et al.
patent: 4592788 (1986-06-01), Tamm et al.

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