Abrasion-resistant steel plate and method of producing abrasion-resistant steel plate

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United States of America Patent

PATENT NO 11111556
APP PUB NO 20190203314A1
SERIAL NO

16092553

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Abstract

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An abrasion-resistant steel plate comprises: a specific chemical composition; and a microstructure in which a volume fraction of martensite at a depth of 1 mm from a surface of the abrasion-resistant steel plate is 90% or more, and a prior austenite grain size in a plate thickness central part at the mid-thickness of the abrasion-resistant steel plate is 80 μm or less, wherein hardness at a depth of 1 mm from the surface of the abrasion-resistant steel plate is 460 to 590 HBW 10/3000 in Brinell hardness, and a concentration [Mn] of Mn in mass % and a concentration [P] of P in mass % in a plate thickness central segregation area satisfy 0.04[Mn]+[P]<0.50.

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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
Hase, Kazukuni Tokyo, JP 41 93
Hayashi, Kenji Tokyo, JP 337 3096
Takayama, Naoki Tokyo, JP 30 302
Terazawa, Yusuke Tokyo, JP 11 29

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