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Title:
MANUFACTURE OF HIGH CARBON MARTENSITIC STAINLESS STEEL CONTAINING FINE CARBIDE
Document Type and Number:
Japanese Patent JPH01230714
Kind Code:
A
Abstract:

PURPOSE: To manufacture a high carbon martensitic stainless steel having high hardness at a low cost by specifying the wt.% of C and Cr, carrying out rolling at a specified temp. and a specified draft and then carrying out rolling at a specified temp. and a specified draft.

CONSTITUTION: A high carbon martensitic stainless steel contg. 0.5W1.5wt.% C and 1.0W25wt.% Cr is hot rolled at ≥10% total draft in the temp. range of 1,250W1,450°C in which solid and liq. coexist. The steel is then rolled at ≥50% total draft in a solid phase range of <1,250°C. A high carbon martensitic stainless steel having high hardness can be manufactured at a low cost.


Inventors:
YAMAMOTO AKIO
SHIMADA TETSUYA
Application Number:
JP5539588A
Publication Date:
September 14, 1989
Filing Date:
March 09, 1988
Export Citation:
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Assignee:
NIPPON STEEL CORP
International Classes:
C21D8/02; C22C38/00; C22C38/18; (IPC1-7): C21D8/02; C22C38/00; C22C38/18
Domestic Patent References:
JPS58123822A1983-07-23
JPS62137109A1987-06-20
JP61315810A
Attorney, Agent or Firm:
Kazuo Ozeki