Title:
PRODUCTION OF MARTENSITIC PRECIPITATION HARDENING TYPE STAINLESS STEEL
Document Type and Number:
Japanese Patent JPH07258729
Kind Code:
A
Abstract:
PURPOSE: To provide a producing method, in which the product having higher strength than the product produced by the conventional method is stably obtd., by improving the producing method of a martensitic precipitation hardening type stainless steel.
CONSTITUTION: Solid solution heat treatment is applied to the martensitic precipitation hardening type stainless steel, and after changing the retained austenite into the martensite by giving the strain having 0.5-20% with the working, ageing treatment is executed. By this method, the stability of strength of the stainless steel is drastically improved.
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Inventors:
NISHIDA JUNICHI
Application Number:
JP4923094A
Publication Date:
October 09, 1995
Filing Date:
March 18, 1994
Export Citation:
Assignee:
HITACHI METALS LTD
International Classes:
C21D8/00; C21D6/00; C22C38/00; C22C38/48; (IPC1-7): C21D8/00; C21D6/00; C22C38/00; C22C38/48
Attorney, Agent or Firm:
Oba Mitsuru
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