Title:
HEAT-RESISTANT COLD ROLLED FERRITIC STAINLESS STEEL SHEET, HOT ROLLED FERRITIC STAINLESS STEEL SHEET FOR COLD ROLLING RAW MATERIAL, AND METHODS FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2013/146815
Kind Code:
A1
Abstract:
Provided is a heat-resistant cold rolled ferritic stainless steel sheet which contains, in terms of mass %, 0.02% or less of C, 0.1-1.0% of Si, greater than 0.6% to 1.5% of Mn, 0.01-0.05% of P, 0.0001-0.0100% of S, 13.0-20.0% of Cr, 0.1-3.0% of Mo, 0.005-0.20% of Ti, 0.3-1.0% of Nb, 0.0002-0.0050% of B, 0.005-0.50% of Al and 0.02% or less of N, with the remainder being Fe and unavoidable impurities, and which is characterized in that the areal proportion of grains having a {111} orientation in a region between a surface layer and a depth of t/4 (t is the sheet thickness) is 20% or higher, the areal proportion of grains having a {111} orientation in a region between a depth of t/4 and a depth of t/2 is 40% or higher, and the areal proportion of grains having a {011} orientation in the overall thickness region is 15% or lower.
Inventors:
HAMADA JUNICHI (JP)
KOYAMA YUJI (JP)
INOUE YOSHIHARU (JP)
KOMORI TADASHI (JP)
FUDANOKI FUMIO (JP)
TANOUE TOSHIO (JP)
ONO NAOTO (JP)
KOYAMA YUJI (JP)
INOUE YOSHIHARU (JP)
KOMORI TADASHI (JP)
FUDANOKI FUMIO (JP)
TANOUE TOSHIO (JP)
ONO NAOTO (JP)
Application Number:
PCT/JP2013/058856
Publication Date:
October 03, 2013
Filing Date:
March 26, 2013
Export Citation:
Assignee:
NIPPON STEEL & SUMIKIN SST (JP)
International Classes:
C22C38/00; C21D9/46; C22C38/32; C22C38/54
Foreign References:
JP2000178693A | 2000-06-27 | |||
JP2006233278A | 2006-09-07 | |||
JP2006328525A | 2006-12-07 | |||
JP2008291282A | 2008-12-04 | |||
JPS63162818A | 1988-07-06 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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