Method for producing ultra high strength, secondary hardening st

Details Method for producing ultra high strength, secondary hardening st Method for producing ultra high strength, secondary hardening st

1994-12-06

1996-08-13

Yee, Deborah

Metal treatment

Process of modifying or maintaining internal physical...

Heating or cooling of solid metal

148653, C21D 802, C21D 810

Patent

active

055452698

ABSTRACT:
High strength steel is produced by a first rolling of a steel composition, reheated above 1100.degree. C., above the austenite recrystallization, a second rolling below the austenite recrystallization temperature, water cooling from above Ar.sub.3 to less than 400.degree. C. and followed by tempering below the Ac.sub.1 transformation point.

REFERENCES:
patent: 3860456 (1975-01-01), Repas

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