Title:
HOT-ROLLED FERRITIC STAINLESS STEEL SHEET WITH EXCELLENT COLD CRACKING RESISTANCE AND MANUFACTURING PROCESS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2013/085005
Kind Code:
A1
Abstract:
This hot-rolled ferritic stainless steel sheet has a composition containing, in mass%, up to 0.0150 % of C, 0.01 to 2.00 % of Si, 0.01 to 2.00% of Mn, less than 0.040% of P, up to 0.010% of S, 10.0 to 30.0% of Cr, 0.001 to 0.100% of Al and up to 0.0200% of N with the balance being Fe and unavoidable impurities, and satisfies the relationship: La/L ≥ 0.20 [wherein L is the length of all grain boundaries with misorientation angles of 1 to less than 180° as observed in a section in the range of 1/4 to 3/4 of the sheet thickness and La is the length of subgrain boundaries with misorientation angles of 1 to less than 15° as observed therein].
Inventors:
KIMURA KEN (JP)
HAMADA JUNICHI (JP)
TAKAHASHI JUN (JP)
KOYAMA YUUJI (JP)
GOTOH SHIGEYUKI (JP)
HAMADA JUNICHI (JP)
TAKAHASHI JUN (JP)
KOYAMA YUUJI (JP)
GOTOH SHIGEYUKI (JP)
Application Number:
PCT/JP2012/081693
Publication Date:
June 13, 2013
Filing Date:
December 06, 2012
Export Citation:
Assignee:
NIPPON STEEL & SUMIKIN SST (JP)
International Classes:
C22C38/00; B21B3/02; C21D9/46; C22C38/38; C22C38/58
Foreign References:
| JP2004270026A | 2004-09-30 | |||
| JP2010100877A | 2010-05-06 | |||
| JPH10237602A | 1998-09-08 | |||
| JPH08199237A | 1996-08-06 | |||
| JP2012140687A | 2012-07-26 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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Claims:
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