Electric resistance welded steel pipe or tube

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12234524
APP PUB NO 20230079323A1
SERIAL NO

18047331

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An electric resistance welded steel pipe or tube comprises: a base metal being a steel sheet having a specific chemical composition and an electric resistance weld portion having a bond width of 40×10−6 m or more and 120×10−6 m or less, wherein C0-C1 is 0.05 mass % or less, where C0-C1 is a difference between C1 in mass % which is a minimum C content of the electric resistance weld portion and Co in mass % which is a C content of the steel sheet, and a depth of a total decarburized layer in each of an inner surface layer and an outer surface layer of the electric resistance welded steel pipe or tube is 50×10−6 m or less.

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Patent Owner(s)

  • JFE STEEL CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gunji, Makio Tokyo, JP 4 9
Kawabata, Yoshikazu Tokyo, JP 28 120

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