Metal gasket and production method therefor

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11890665
APP PUB NO 20230166318A1
SERIAL NO

17895404

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Provided is a metal gasket including, expressed in mass%, C: 0.10% or less, Si: 1.0% or less, Mn: 2.0% or less, P: 0.04% or less (including 0%), S: 0.01% or less (including 0%), Ni: 25.0-60.0%, Cr: 10.0-20.0%, either Mo or W alone, or both Mo+W/2: 0.05-5.0%, Al: more than 0.8% to 3.0% or less, Ti: 1.5-4.0%, Nb: 0.05-2.5%, V: 1.0% or less (including 0%), B: 0.001-0.015%, Mg: 0.0005-0.01%, S/Mg: 1.0 or less, N: 0.01% or less (including 0%), and O: 0.005% or less (including 0%), with the remainder being Fe and unavoidable impurities. The metal gasket has a metal structure in which a precipitate γ′ phase having an average equivalent circle diameter of 25 nm or larger is not present within the austenite base.

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Patent Owner(s)

Patent OwnerAddress
PROTERIAL LTDTOKYO 135-0061

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nishida, Junichi Shimane, JP 35 396
Uehara, Toshihiro Shimane, JP 50 277

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