Ferritic stainless steel

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United States of America Patent

PATENT NO 11384405
APP PUB NO 20160281184A1
SERIAL NO

14442708

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Abstract

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The invention relates to a ferritic stainless steel having excellent corrosion and sheet forming properties. The steel consists of in weight percentages 0.003-0.035% carbon, 0.05-1.0% silicon, 0.1-0.8% manganese, 20-24% chromium, 0.05-0.8% nickel, 0.003-0.5% molybdenum, 0.2-0.8% copper, 0.003-0.05% nitrogen, 0.05-0.8% titanium, 0.05-0.8% niobium, 0.03-0.5% vanadium, less than 0.04% aluminium, and the sum C+N less than 0.06%, the remainder being iron and inevitable impurities in such conditions, that the ratio (Ti+Nb)/(C+N) is higher or equal to 8, and less than 40, and the ratio Tieq/Ceq=(Ti+0.5l5*Nb+0.940*V)/(C+0.858*N) is higher or equal to 6, and less than 40.

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Patent Owner(s)

Patent OwnerAddress
OUTOKUMPU OYJSALMISAARENRANTA 11 HELSINKI 00180

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kela, Juha Tornio, FI 7 323
Koskiniemi, Joni Kemi, FI 1 0
Levonmaa, Raimo Turku, FI 2 0

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