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Title:
MANUFACTURE OF FE-CR-AL ROLLING STOCK
Document Type and Number:
Japanese Patent JPH01129928
Kind Code:
A
Abstract:

PURPOSE: To obtain the title rolling stock causing no internal cracking at the time of cooling at a low cost by successively subjecting an Fe-Cr-ACl steel ingot contg. prescribed amts. of Cr and Al to blooming, holding in a specified high temp. range and cooling to a prescribed temp. or below.

CONSTITUTION: An Fe-Cr-Al steel ingot contg. 12W26wt.% Cr and 2W6wt.% Al is bloomed to obtain a rolling stock such as a slab. In order to improve the toughness and oxidation resistance of the steel, ≤ about 0.5wt.% Ti, Nb or Zr and ≤ about 0.3wt.% Y, La, Ce or Nd may be incorporated into the ingot. The rolling stock is held in the temp. range of 800W1,000°C for ≥1hr and cooled to ≤300°C. An Fe-Cr-Al rolling stock causing no internal cracking at the time of cooling is obtd.


Inventors:
Ishii, Kazuhide
Kawasaki, Tatsuo
Application Number:
JP1987000287515
Publication Date:
February 02, 1999
Filing Date:
November 16, 1987
Export Citation:
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Assignee:
KAWASAKI STEEL CORP
International Classes:
E02D5/80; E02D17/20; (IPC1-7): E02D5/80; E02D17/20
Attorney, Agent or Firm:
加川 征彦



 
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