Title:
HOT-ROLLED AND ANNEALED FERRITIC STAINLESS STEEL SHEET, AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2018/199062
Kind Code:
A1
Abstract:
Provided are: a hot-rolled and annealed ferritic stainless steel sheet having a sufficient corrosion resistance, and capable of suppressing cracking while performing a punching process on a thick flange; and a method for manufacturing the same. The hot-rolled and annealed ferritic stainless steel sheet contains 0.00-0.020 mass% of C, 0.05-1.00 mass% of Si, 0.05-1.00 mass% of Mn, at most 0.04 mass% of P, at most 0.01 mass% of S, 0.001-0.100 mass% of Al, 10.0-19.0 mass% of Cr, 0.65-1.50 mass% of Ni, 0.10-0.40 mass% of Ti, and 0.001-0.020 mass% of N, and the remainder comprising Fe and inevitable impurities, wherein the threshold stress intensity factor KIC is at least 35 MPa∙m1/2.
Inventors:
YOSHINO MASATAKA (JP)
INOUE KEISHI (JP)
FUJISAWA MITSUYUKI (JP)
INOUE KEISHI (JP)
FUJISAWA MITSUYUKI (JP)
Application Number:
PCT/JP2018/016545
Publication Date:
November 01, 2018
Filing Date:
April 24, 2018
Export Citation:
Assignee:
JFE STEEL CORP (JP)
International Classes:
C22C38/00; C21D9/46; C22C38/50; C22C38/54
Domestic Patent References:
| WO2018074164A1 | 2018-04-26 |
Foreign References:
| JPH08283913A | 1996-10-29 | |||
| JP2001181742A | 2001-07-03 |
Other References:
See also references of EP 3587610A4
Attorney, Agent or Firm:
KUMASAKA Akira et al. (JP)
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