To provide a ferritic-austenitic stainless steel sheet having high "uniform elongation" as a factor governing actual formability without largely incorporating Ni as an expensive and rare element, and to provide a method for producing the same.
The stainless steel sheet comprises, by mass, 0.002 to 0.100% C, 0.05 to 2.00% Si, 0.05 to 5.00% Mn, 0.050% P, 0.010% S, 17 to 25% Cr and 0.010 to 0.150% N, and the balance iron with inevitable impurities, and in which the volume fraction in an austenitic phase is 10 to 50%, Md value calculated from the chemical composition in the austenitic phase is -10 to 110, the crystal grain size in a cross section vertical to the rolling width direction is 15 m, also, the ratio of austenitic grains having a shape aspect ratio of 3 occupies 90% of all the austenitic grains, and further, the average spacing between the closest austenitic grains in the same cross section is 12 m.
HATANO MASAHARU
ISHIMARU EIICHIRO
TAKAHASHI AKIHIKO
| JP2006169622A | 2006-06-29 | |||
| JP2006200035A | 2006-08-03 | |||
| JP2006233308A | 2006-09-07 | |||
| JPH05247594A | 1993-09-24 | |||
| JPH02305940A | 1990-12-19 | |||
| JP2006169622A | 2006-06-29 | |||
| JP2006200035A | 2006-08-03 | |||
| JP2006233308A | 2006-09-07 | |||
| JPH05247594A | 1993-09-24 | |||
| JPH02305940A | 1990-12-19 |
Shunta Naito
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