High strength low carbon steel wire rods and method of...

Details High strength low carbon steel wire rods and method of... High strength low carbon steel wire rods and method of...

C - Chemistry, Metallurgy

21

D

75/149, 148/33,

C21D 1/18 (2006.01) C21D 8/06 (2006.01) C21D 9/52 (2006.01) C22C 38/06 (2006.01)

Patent

CA 1332210

ABSTRACT OF THE DISCLOSURE High strength low carbon steel wire rods excellent in the cold drawing property have a composite structure in which an acicular low temperature transformation phase comprising a martensite, bainite and/or the mixed structure thereof that comprises, by weight %, C : 0.02 - 0.30 %, Si : less than 2.5 %, Mn : less than 2.5 % and the balance of iron and inevitable impurities and that may partially contain retained austenite is uniformly dispersed at the volume ratio of from 10 to 70 % in the ferrite phase, and in which the weight of (C+N) in solution in the ferrite phase is less than 40 ppm.

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