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Title:
WEAR-RESISTANT STEEL PRODUCT AND METHOD FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2001/042523
Kind Code:
A1
Abstract:
A wear-resistant steel product which comprises, in mass %, 0.05 to 0.40 % of C, 0.1 to 0.8 % of Si, 0.5 to 2.0 % of Mn, 0.005 to 0.5 % of Ti, 0.0005 to 0.005 % of B, 0.005 to 0.10 % of Al, and 0.005 % or less of N, and has martensite structure and a spreading degree of old austenitic grain of 2 or more, which degree is represented by the ratio (dL/dZ) of the old austenitic grain diameter in the direction of thickness (dL) to the old austenitic grain diameter in the direction of milling (dZ) in the steel product.

Inventors:
SADASUE TERUKI (JP)
SUZUKI SHINICHI (JP)
Application Number:
PCT/JP2000/008649
Publication Date:
June 14, 2001
Filing Date:
December 07, 2000
Export Citation:
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Assignee:
NIPPON KOKAN KK (JP)
SADASUE TERUKI (JP)
SUZUKI SHINICHI (JP)
International Classes:
C21D8/02; C22C38/00; C22C38/06; C22C38/28; C22C38/32; C22C38/38; C22C38/58; (IPC1-7): C22C38/00; C21D8/02; C22C38/14; C22C38/58
Foreign References:
JPH09279303A1997-10-28
JPH0978191A1997-03-25
JPH02236223A1990-09-19
US5236521A1993-08-17
US5393358A1995-02-28
JPS61207511A1986-09-13
JPH07173571A1995-07-11
JPH1171631A1999-03-16
JPH10204575A1998-08-04
JPH0841535A1996-02-13
JPH06248386A1994-09-06
Attorney, Agent or Firm:
Nakahama, Yasumitsu (Minamiwatarida-cho Kawasaki-ku, Kawasaki-shi Kanagawa, JP)
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