Rail

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11566307
SERIAL NO

17040538

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided is a rail that is effective in improving wear resistance and rolling contact fatigue (RCF) resistance. The rail has a metallic structure including a pearlitic structure and a structure other than the pearlitic structure in a surface layer from a surface of a rail head to a depth of at least 0.5 mm, where the pearlitic structure has Vickers hardness of 420 HV or more and 520 HV or less, and the structure other than the pearlitic structure has Vickers hardness of 350 HV or more and 420 HV or less.

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Patent Owner(s)

Patent OwnerAddress
JFE STEEL CORPORATION2-3 UCHISAIWAI-CHO 2-CHOME CHIYODA-KU TOKYO 1000011 JAPAN

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Honjo, Minoru Tokyo, JP 25 45
Takemasa, Mineyasu Tokyo, JP 5 4

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