Steel wire rod and process for producing steel for steel wire rod

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6277220
SERIAL NO

09503713

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The steel wire rod contains oxides which comprises, on the weight % basis, SiO.sub.2, 70% or more; CaO+Al.sub.2 O.sub.3, less than 20%; and ZrO.sub.2, 0.1 to 10% in the average composition of oxides of 2 .mu.m or more in width on a longitudinal section thereof. This wire rod is excellent in cold workability such as drawability, and steel wires which have high fatigue strength can be produced from this wire rod as stock steel.

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Patent Owner(s)

  • SUMITOMO METAL INDUSTRIES, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hamada, Takanari 13-20-211, Kamitomino 2-chome, Kokurakita-ku, Kitakyushu-shi, Fukuoka 802-0022, JP 2 17
Ishizaka, Yukio 10-3, Kyomachi 1-chome, Kanda-machi, Miyako-gun, Fukuoka 800-0351, JP 4 30
Nakano, Yusuke 12-7-303, Kamitomino 2-chome, Kokurakita-ku, Kitakyushu-shi, Fukuoka 802-0022, JP 67 216

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