High-strength steel with yield strength of 800 MPa and production method therefor

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United States of America Patent

PATENT NO 10961611
APP PUB NO 20170349987A1
SERIAL NO

15536200

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Abstract

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A high-strength steel having a yield strength at a level of 800 MPa and a method of manufacturing the same, with the components and amounts thereof by weight percentage being: C: 0.06-0.14%, Si: 0.1-0.30%, Mn: 0.8-1.60%, Cr: 0.2-0.70%, Mo: 0.1-0.40%, Ni: 0-0.30%, Nb: 0.01-0.030%, Ti: 0.01-0.030%, V: 0.01-0.05%, B: 0.0005-0.0030%, Al: 0.02-0.06%, Ca: 0.001-0.004%, N: 0.002-0.005%, P≤0.02%, S≤0.01%, O≤0.008%, the balance of Fe and unavoidable impurities; wherein the above elements meet the following relationships: 0.40%

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Patent Owner(s)

Patent OwnerAddress
BAOSHAN IRON & STEEL CO LTDNO 885 FUJIN ROAD BAOSHAN DISTRICT SHANGHAI 201900 201900

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Zigang Shanghai, CN 5 9
Liu, Gang Shanghai, CN 625 6202
Song, Fengming Shanghai, CN 6 4
Yang, Ana Shanghai, CN 13 8

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