High strength steel sheet and method for manufacturing the same

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United States of America Patent

PATENT NO 9121087
APP PUB NO 20110146852A1
SERIAL NO

13060115

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Abstract

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A high-strength steel sheet has good ductility and stretch-flangeability and has a tensile strength (TS) of 980 MPa or more. The steel sheet contains 0.17%-0.73% C, 3.0% or less Si, 0.5%-3.0% Mn, 0.1% or less P, 0.07% or less S, 3.0% or less Al, and 0.010% or less N, in which Si+Al is 0.7% or more.

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Patent Owner(s)

Patent OwnerAddress
JFE STEEL CORPORATION2-3 UCHISAIWAI-CHO 2-CHOME CHIYODA-KU TOKYO 100-0011

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funakawa, Yoshimasa Tokyo, JP 114 740
Matsuda, Hiroshi Tokyo, JP 474 5592
Tanaka, Yasushi Tokyo, JP 116 932

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