ELECTRIC RESISTANCE WELDED STEEL PIPE FOR AN AUTOMOTIVE PART, AND METHOD OF PRODUCING AUTOMOTIVE PART

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United States of America Patent

APP PUB NO 20250101554A1
SERIAL NO

18730792

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Abstract

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An electric resistance welded steel pipe for an automotive part, the pipe comprising a base metal portion and an electric resistance welded portion, wherein the base metal portion has a chemical composition comprising, in terms of % by mass: from 0.42 to 0.48% of C, from 0.01 to 0.20% of Si, from 0.10 to 0.70% of Mn, from 0 to 0.030% of P, from 0 to 0.030% of S, from 0.005 to 0.050% of Al, from 0.005 to 0.040% of Ti, from 0.0005 to 0.0050% of B, and a balance comprising Fe and impurities, wherein a steel structure of the base metal portion is a ferrite-pearlite mixed structure, and wherein the base metal portion has a hardness of from 110 to 150 Hv.

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL CORPORATIONTOKYO 100-8071

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
MOTEGI, Yuki Chiyoda-ku, Tokyo, JP 52 149
NAGATA, Yukinobu Chiyoda-ku, Tokyo, JP 6 3
NIIYAMA, Fumihiko Chiyoda-ku, Tokyo, JP 2 7
OGAWA, Takahisa Chiyoda-ku, Tokyo, JP 8 250
SHINOHARA, Yasuhiro Chiyoda-ku, Tokyo, JP 20 166
UEDA, Yukimasa Chiyoda-ku, Tokyo, JP 4 46

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