HOT-ROLLED AND ANNEALED FERRITIC STAINLESS STEEL SHEET AND METHOD FOR PRODUCING SAME

WIPO Patent Application WO/2018/074164

A1

Provided are: a hot-rolled and annealed ferritic stainless steel sheet that has sufficient corrosion resistance and that can be suppressed from cracking when punched into a thick-walled flange; and a method for producing the same. This hot-rolled and annealed ferritic stainless steel sheet is characterized by: having a component composition comprising, in mass%, 0.001 to 0.020% C, 0.05 to 1.00% Si, 0.05 to 1.00% Mn, at most 0.04% P, at most 0.01% S, 0.001 to 0.100% Al, 10.0 to 24.0% Cr, 0.01 to 0.60% Ni, 0.10 to 0.40% Ti, and 0.001 to 0.020% N, with the remainder comprising Fe and inevitable impurities; and having a threshold stress intensity factor KIC of at least 20 MPa·m1/2.

JP4445339	High Young's modulus steel sheet and its manufacturing method
JPH0474852	FERRITIC STAINLESS STEEL EXCELLENT IN THERMAL FATIGUE RESISTANCE
JP6087213	A manufacturing method of rolled bar steel materials and rolled bar steel-materials processed goods

YOSHINO MASATAKA (JP)
FUJISAWA MITSUYUKI (JP)

PCT/JP2017/034949

April 26, 2018

September 27, 2017

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JFE STEEL CORP (JP)

C22C38/00; C21D8/02; C21D9/46; C22C38/50; C22C38/54

WO2014142302A1	2014-09-18
WO2017013850A1	2017-01-26
WO2014157576A1	2014-10-02

JP2001181798A	2001-07-03
JP2009035755A	2009-02-19
JP2015137375A	2015-07-30
JP2012167298A	2012-09-06
JP2001181742A	2001-07-03
JP2000265215A	2000-09-26

See also references of EP 3486347A4

KUMASAKA Akira et al. (JP)

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