Ferritic stainless steel alloy for use as catalytic converter ma

Details Ferritic stainless steel alloy for use as catalytic converter ma Ferritic stainless steel alloy for use as catalytic converter ma

1995-08-17

1996-11-26

Ip, Sikyin

Alloys or metallic compositions

Ferrous

Nine percent or more chromium containing

C22C 3818

Patent

active

055782655

ABSTRACT:
The invention provides a ferritic stainless steel alloy useful for strip steel used in exhaust catalytic converters, consisting essentially of in weight %, .ltoreq.0.02% C, 19-21% Cr, 4.5-6% Al, 0.01-0.03% Ce, 0.02-0.05% total of rare earth elements, .gtoreq.0.015% total Mg+Ca, and balance Fe plus impurities. The alloy can contain 0.2-0.4% Mn, 0.1-0.4% Si, .ltoreq.0.5% Ni, .ltoreq.0.02% P, .ltoreq.0.005% S, .ltoreq.0.025% N, 0.015-0.025% Mg, 0.0005-0.0018% Ca, 0.005-0.015% La, 0.02-0.03% Ce, .ltoreq.0.015% Ti and .ltoreq.0.015% Zr.

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