Method for the production of homogeneous steel

Details Method for the production of homogeneous steel Method for the production of homogeneous steel

1981-10-26

1983-09-27

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

148 12R, 148 12F, C21D 800

Patent

active

044067119

ABSTRACT:
A method for the production of a homogeneous steel with reduced segregation of its ingredients by providing a continuous steel cast or steel ingot, the steel consisting of C.ltoreq.1.0%, Si.ltoreq.1.0% and Mn=0.2-3.0% plus one or more than two elements consisting of V.ltoreq.0.2%, Nb.ltoreq.0.2%, Mo.ltoreq.1.0%, Cu.ltoreq.2.0%, Cr.ltoreq.2.0%, Ni.ltoreq.3.0%, B.ltoreq.0.002%, Ti.ltoreq.0.1%, Al.ltoreq.0.1%, and Ca.ltoreq.0.01%, and the balance Fe and other unavoidable impurities, all percentages being by weight, subjecting the steel casting to a primary hot working at more than 20% reduction of area at an austenitic temperature range of less than 1200.degree. C. or at a temperature in the range from the Ar.sub.1 temperature to the Ac.sub.3 temperature in which two phases of austenite and ferrite coexist, and then to a soaking step wherein the core temperature of the steel casting stays at 1000.degree. C. or higher for a period of 30 minutes or longer.

REFERENCES:
patent: 4137104 (1979-01-01), Nashiwa et al.
patent: 4184898 (1980-01-01), Ouchi et al.
patent: 4325748 (1982-04-01), Nashiwa et al.

Affiliated with

Also associated with

Rating

Method for the production of homogeneous steel does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the production of homogeneous steel, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the production of homogeneous steel will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2129387