Producing a weldable, ferritic stainless steel strip

Details Producing a weldable, ferritic stainless steel strip Producing a weldable, ferritic stainless steel strip

1987-09-08

1989-05-30

Roy, Upendra

Metal treatment

Compositions

Heat treating

22826315, 148 121, 420 42, 420 62, 420 70, C22C 3828

Patent

active

048348082

ABSTRACT:
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.

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