C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
C21D 8/02 (2006.01) B21B 1/26 (2006.01) C21D 7/13 (2006.01) C21D 8/04 (2006.01)
Patent
CA 2145729
A method of producing a ferritic stainless steel strip having reduced intra-face anisotropy as well as excellent r value and anti-ridging characteristics. The method involves subjecting a ferritic stainless steel slab to a hot rolling step including rough rolling having at least one rough rolling pass and a finish rolling having at least one finish rolling pass, followed by a hot-rolled sheet annealing, pickling, cold rolling and finish annealing. At least one of the passes in the rough rolling is conducted with the rolling temperature between about 970 to about 1150°C, the friction coefficient between the rolls and the rolled material of about 0.3 or less, and the rolling reduction ratio between about 40 to about 75%.
Kanari Shohei
Kobayashi Makoto
Satoh Susumu
Togashi Fusao
Ujiro Takumi
Kawasaki Steel Corporation
Smart & Biggar
LandOfFree
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