Method for producing hot-rolled steel sheet and method for producing cold-rolled full hard steel sheet

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United States of America Patent

PATENT NO 11965222
APP PUB NO 20210147957A1
SERIAL NO

17158097

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Abstract

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A method of producing a hot-rolled steel sheet and a method for producing a cold-rolled full hard steel sheet are provided. The methods comprising heating a steel slab having a composition containing, in terms of mass %, C: 0.010% or more and 0.150% or less, Si: 0.20% or less, Mn: 1.00% or less, P: 0.100% or less, S: 0.0500% or less, Al: 0.001% or more and 0.100% or less, N: 0.0100% or less, and the balance being Fe and unavoidable impurities, in which 0.002%≤[% P]+[% S]≤0.070% ([% M] denotes a content (mass %) of M element in steel) is satisfied.

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Patent Owner(s)

Patent OwnerAddress
JFE STEEL CORPORATIONTOKYO 100-0011

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funakawa, Yoshimasa Tokyo, JP 114 740
Minami, Hidekazu Tokyo, JP 46 105

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