Patent Number: 6,165,627

Title: Iron alloy wire and manufacturing method

Abstract: An INVAR.RTM. or iron nickel alloy or iron nickel cobalt alloy wire has an area ratio of carbide existing at the grain boundaries of the wire in the finished wire of at most 4%, or an average grain size in the transverse direction within a range of 1 to 5 .mu.m. Such a wire has a superior twisting property.

Inventors: Miyazaki; Kenji (Osaka, JP), Kitamura; Shinichi (Osaka, JP), Yoshida; Atsushi (Osaka, JP), Yahagi; Shinichiro (Aichi, JP), Saito; Takanobu (Aichi, JP)

Assignee: Sumitomo Electric Industries, Ltd.

International Classification: C22C 38/52 (20060101); C22C 38/44 (20060101); C21D 8/06 (20060101); C22C 38/10 (20060101); C22C 038/08 ()

Expiration Date: 12/26/2013