High-strength cold rolled steel sheet having high formability and a method of manufacturing thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11279984
APP PUB NO 20190338385A1
SERIAL NO

16470728

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Abstract

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A cold rolled steel sheet, the steel containing, in weight percentage,

    0.19%≤carbon≤0.24%,1.9%≤manganese≤2.2%,1.4%≤silicon≤1.6%,0.01%≤aluminum≤0.06%,0.2%≤chromium≤0.5%,phosphorus≤0.02%,sulfur≤0.003%,the balance including iron and unavoidable impurities, the steel sheet having a microstructure containing 5% to 15% of tempered martensite, 10% to 15% of residual austenite, the balance containing bainite, bainite content being at least 70%, is described. Also described is a manufacturing method and with use of such grade for making vehicle parts.

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Patent Owner(s)

Patent OwnerAddress
ARCELORMITTAL1160 LUXEMBOURG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pipard, Jean-Marc Vaux, FR 13 3
Targy, Pierre Metz, FR 1 0
Thenot, Marc Olivier Malancourt-la-Montagne, FR 4 1

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