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Title:
WEAR RESISTANT STEEL SHEET AND PRODUCTION METHOD THEREFOR
Document Type and Number:
Japanese Patent JP2002256382
Kind Code:
A
Abstract:

To provide a wear resistant steel sheet whose strength and wear resistance are stably secured and which has excellent low temperature toughness and low temperature welding crack resistance as well, and a production method therefor.

The steel sheet consists of steel containing, as chemical components, by mass, 0.10 to 0.30% C, 0.1 to 1.0% Si, 0.1 to 2.0% Mn, ≤0.02% P and ≤0.005% S and the balance substantially iron. The steel has a hardenability index H of ≥1.0, a carbon equivalent Ceq of ≤0.05%, Brinell hardness HB of ≥360, and Charpy absorbed energy at -40°C vE-40 of ≥27 J; wherein, H=C×(1+0.5Si)×(1+3Mn)×(1+0.3Cu)×(1+0.5Ni)×(1+2Cr)×(1+3 Mo)×(1+1.5V)×(1+5Nb)×(1+300B), and Ceq=C+Mn/6+(Cu+Ni)/15+(Cr+Mo+V)/5.


Inventors:
HASHIMOTO MASAYUKI
MUROTA YASUHIRO
ABE TAKASHI
Application Number:
JP2001000396577
Publication Date:
September 11, 2002
Filing Date:
December 27, 2001
Export Citation:
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Assignee:
NIPPON KOKAN KK
International Classes:
C21D8/02; C22C38/00; C22C38/04; C22C38/58; (IPC1-7): C22C38/00; C21D8/02; C22C38/04; C22C38/58
Attorney, Agent or Firm:
Yasumitsu Nakahama