Ferritic stainless steel and processing therefore

Details Ferritic stainless steel and processing therefore Ferritic stainless steel and processing therefore

C - Chemistry, Metallurgy

22

C

148/10, 75/134

C22C 38/28 (2006.01) C21D 8/02 (2006.01) C22C 38/00 (2006.01) C22C 38/26 (2006.01)

Patent

CA 1326143

ABSTRACT OF THE DISCLOSURE A weldable ferritic stainless steel and a method for producing the same is provided wherein the steel consists essentially of up to 0.03 carbon, up to 0.05 nitrogen, 10 to 25 chromium, up to 1.0 manganese, up to 0.5 nickel, up to 1.0 silicon, 0.03 to 0.35 titanium, 0.10 to 1.0 niobium, optionally up to 1.2 aluminum, the balance essentially iron, the amounts of titanium and niobium varying inversely and not more than necessary to satisfy specific thermodynamic equations and the method includes casting the steel into ingots or slabs without the precipitation of detrimental intermetallic or nonmetallic titanium compounds so that the hot-rolled band gauge, without grinding, can be cold rolled to final gauge sheet or strip free of open surface defects.

553930

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