Automobile undercarriage part

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12209300
APP PUB NO 20220154319A1
SERIAL NO

17441578

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An automobile undercarriage part of the present invention has a welded joint formed by base steel plate,

    wherein the chemical composition of a weld metal contains, with respect to a total mass of the weld metal, by mass %, C: 0.02% to 0.30%, Si: 0.10% to less than 1.0%, Mn: 1.2% to 3.0%, Al: 0.002% to 0.30%, Ti: 0.005% to 0.30%, P: more than 0% to 0.015%, and S: more than 0% to 0.030%, the following formula (1A), formula (1B), formula (2), and formula (3) are satisfied, and slag in a toe portion of the fillet weld satisfies a formula (4).[Al]+[Ti]>0.05  Formula (1A)[Ti]/[Al]>0.9  Formula(1B)7×[Si]+7×[Mn]−112×[Ti]−30×[Al]≤12  Formula (2)2.0<[Si]+[Mn]  Formula (3)[Ti content on slag surface]>[Si content on slag surface]  Formula (4).

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL CORPORATION6-1 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 1008071 ?1008071

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Azuma, Masafumi Tokyo, JP 63 464
Kodama, Shinji Tokyo, JP 127 1224
Matsuba, Masahiro Tokyo, JP 9 9
Mori, Yoichiro Tokyo, JP 18 45
Otsuka, Kenichiro Tokyo, JP 77 298

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