As-hot rolled bar steel

Details As-hot rolled bar steel As-hot rolled bar steel

1987-07-06

1989-02-21

Yee, Deborah

Metal treatment

Stock

Ferrous

420127, 420128, 420 87, C22C 3812

Patent

active

048061778

ABSTRACT:
The toughness of vanadium and niobium microalloyed medium carbon bar steels is significantly improved by a controlled addition of aluminum in a range of from about 0.05 to 0.11 percent. Forged parts combining high strength and hardness properties with improved toughness can be made from the new bar steel without the need of heat treatment.

REFERENCES:
patent: Re28878 (1976-06-01), Korchynsky et al.
patent: 3173782 (1965-03-01), Melloy et al.
patent: 3562028 (1971-02-01), Heitmann et al.
patent: 3761324 (1973-09-01), Elias et al.
patent: 4142922 (1979-03-01), Abraham et al.
patent: 4289548 (1981-09-01), Bucher et al.
patent: 4370178 (1983-01-01), Waid et al.
patent: 4397698 (1983-08-01), Davenport et al.
patent: 4405381 (1983-09-01), Demianczuk et al.
"Production of Microalloyed Strip and Plate By Controlled Cooling" by John D. Grozier; Microalloying 75.
"The Combined Effect of Microalloying Steels with Columbium and Vanadium" Greday et al; Microalloying 75, LTV Microalloyed Steels: (Mar. 1986).

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