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Title:
METHOD FOR MANUFACTURING BORON-CONTAINING FERRITIC STAINLESS STEEL STRIP
Document Type and Number:
Japanese Patent JP2004107704
Kind Code:
A
Abstract:

To provide a method for manufacturing a boron-containing hot-rolled ferritic stainless steel strip suitable for a stock of a polymer electrolyte fuel cell separator component.

Ferritic stainless steel containing, by mass, ≥ 0.1% B and 15-32% Cr is heated to the temperature of ≤ 1,230°C, hot rolling is completed with the finish thickness t to satisfy the relationship (1) t ≤ 5-2B (%), and at the finish temperature TF to satisfy the relationshipes (2) TF ≥ 750 if B content is 0.1-0.25%, and (3) TF ≥ 280 × B(%) + 680, the unit of the finish thickness t is mm, and the finish temperature of hot rolling is °C.


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Inventors:
TSUGE SHINJI
YAZAWA TAKEO
TARUYA YOSHIO
SEKI AKIRA
HANAO MASAFUMI
Application Number:
JP2002269540A
Publication Date:
April 08, 2004
Filing Date:
September 17, 2002
Export Citation:
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Assignee:
SUMITOMO METAL IND
International Classes:
C21D9/46; C22C38/00; C22C38/32; (IPC1-7): C21D9/46; C22C38/00; C22C38/32
Attorney, Agent or Firm:
Terutada Hogami
Michio Mori



 
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