Method of producing stainless steel product

Details Method of producing stainless steel product Method of producing stainless steel product

1977-02-28

1979-02-06

Stallard, W.

Metal treatment

Compositions

Heat treating

C21D 702

Patent

active

041382790

ABSTRACT:
A method of producing stainless steel products superior in intergranular corrosion resistance and applicable to ultrasonic flaw detection, in which austenite group stainless cast steel containing 5 to 40% of ferrite phase is employed as base material, part or all of which base material is subjected to plastic deformation or plastic processing such as pulling, pressing, bending, tension processing and the like, with subsequent recrystallizing heat treatment for the improvement of intergranular corrosion resistance by making its cast structure fine and reducing surface roughening developed due to deformation during the plastic processing, and for making it possible to successfully apply ultrasonic flaw detection to such cast steel products.

REFERENCES:
patent: 3689325 (1972-09-01), Hayden, Jr. et al.
patent: 3826689 (1974-07-01), Ohta et al.
patent: 3844846 (1974-10-01), Friske et al.
patent: 4002510 (1977-01-01), Wilde

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