Low-alloy steel material, die blocks and other heavy forgings ma

Details Low-alloy steel material, die blocks and other heavy forgings ma Low-alloy steel material, die blocks and other heavy forgings ma

1987-03-23

1988-08-23

Andrews, Melvyn J.

Metal treatment

Stock

Ferrous

420109, C22C 3850

Patent

active

047658495

ABSTRACT:
A method for manufacturing a low-alloy steel product having a very high hardenability in relation to its alloying content is disclosed. The method includes the steps of melting the steel; adding thereto a micro-alloying ingredient selected from group consisting of aluminum, titanium, and aluminum and titanium together; superheating the melt to a temperature of at least 1625.degree. C., holding the melt at the temperature level for at least two minutes; teeming and casting the melt to form ingots and hot-working the ingots to form a low alloy steel product of the following composition:

REFERENCES:
patent: 4318739 (1982-03-01), Lehman
patent: 4457789 (1984-07-01), Wilks
patent: 4673433 (1987-06-01), Roberts

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