Low alloy cold-worked martensitic steel

Details Low alloy cold-worked martensitic steel Low alloy cold-worked martensitic steel

1982-05-24

1984-11-20

Skiff, Peter K.

Metal treatment

Compositions

Heat treating

148 124, 148 36, C21D 800

Patent

active

044837224

ABSTRACT:
A method of producing a low carbon, low alloy, martensitic, cold-worked steel is disclosed. A low alloy steel is provided having the ability to form an essentially martensitic structure upon air cooling from a temperature above its A.sub.cl. The steel is austenitized and then air cooled to form a martensitic structure. The steel is tempered and then cold-worked to reduce its cross section by about 1/32 to 1/8 inch to increase its tensile and yield strengths while at least maintaining its tempered hardness.

REFERENCES:
patent: 3379582 (1968-04-01), Dickinson
Iron Age, Feb. 7, 1963, "Steel Bars Climb to 400,000 psi", pp. 85-87.

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