Method of manufacturing Martensitic steel and a Martensitic steel thereof

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12157925
APP PUB NO 20210404032A1
SERIAL NO

17291973

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Abstract

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A martensitic steel including the following elements, expressed in percentage by weight 0.1%≤C≤0.4%; 0.2%≤Mn≤2%; 0.4%≤Si≤2%; 0.2%≤Cr≤1%; 0.01%≤Al≤1%; 0%≤S≤0.09%; 0%≤P≤0.09%; 0%≤N≤0.09%; and can contain one or more of the following optional elements 0%≤Ni≤1%; 0%≤Cu≤1%; 0%≤Mo≤0.1%; 0%≤Nb≤0.1%; 0%≤Ti≤0.1%; 0%≤V≤0.1%; 0.0015%≤B≤0.005%; 0%≤Sn≤0.1%; 0%≤Pb≤0.1%; 0%≤Sb≤0.1%; 0%≤Ca≤0.1%; the remainder composition being composed of iron and unavoidable impurities caused by processing, the microstructure of said steel having microstructure by area percentage including cumulative presence of residual austenite and bainite between 0% and 25%, the remaining microstructure being martensite at least 70%, and with an optional presence of ferrite between 0% and 10%.

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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
Ghassemi-Armaki, Hassan Schererville, US 25 11
Gustafson, Timothy Valparaiso, US 1 0
Patel, Vikas Kanubhai Naperville, US 2 0

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