Title:
BASE MATERIAL FOR CLAD STEEL, CLAD STEEL, AND METHOD FOR MANUFACTURING CLAD STEEL
Document Type and Number:
WIPO Patent Application WO/2020/189672
Kind Code:
A1
Abstract:
A base material for clad steel according to an embodiment of the present invention is characterized by having a composition containing, in terms of mass%, 0.04-0.10% C, 0.10-0.30% Si, 1.30-1.60% Mn, no more than 0.015% P, no more than 0.005% S, 0.10-0.50% Ni, no more than 0.10% Cr, no more than 0.05% Cu, 0.05-0.40% Mo, 0.02-0.06% V, no more than 0.03% Nb, 0.005-0.025% Ti, 0.020-0.050% Al, and 0.0030-0.0100% N, the remainder comprising Fe and unavoidable impurities, the carbon equivalent Ceq according to formula (1) (Ceq = C + Mn/6 + (Ni + Cu)/15 + (Cr + Mo + V)/5 (mass%)) in said composition being 0.0400 or less, and the yield ratio Y. R. in formula (2) (Y. R. = Y. S. (MPa; 0.5% under load)/T. S. (MPa)) being less than 0.80.
Inventors:
KAWAMURA TAKASHI (JP)
NISHIMOTO KENTA (JP)
SUZUKI DAISHIRO (JP)
HASHI KUNIHIKO (JP)
NISHIMOTO KENTA (JP)
SUZUKI DAISHIRO (JP)
HASHI KUNIHIKO (JP)
Application Number:
PCT/JP2020/011681
Publication Date:
September 24, 2020
Filing Date:
March 17, 2020
Export Citation:
Assignee:
JAPAN STEEL WORKS LTD (JP)
International Classes:
C21D9/00; C22C38/00; C22C38/58
Foreign References:
| JP2004149821A | 2004-05-27 | |||
| JP2009185368A | 2009-08-20 | |||
| JP2016108665A | 2016-06-20 | |||
| JP2019007056A | 2019-01-17 | |||
| US20160052080A1 | 2016-02-25 | |||
| KR20130053706A | 2013-05-24 | |||
| JP2015224376A | 2015-12-14 | |||
| JP2019049681A | 2019-03-28 |
Other References:
See also references of EP 3943621A4
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (JP)
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