High strength hot rolled steel sheet having excellent flash...

Details High strength hot rolled steel sheet having excellent flash... High strength hot rolled steel sheet having excellent flash...

C - Chemistry, Metallurgy

21

D

148/34.4

C21D 8/02 (2006.01) C21D 1/02 (2006.01) C22C 38/00 (2006.01)

Patent

CA 1183431

ABSTRACT OF THE DISCLOSURE A high strength hot rolled steel sheet having excellent flash butt weldability, fatigue characteristic and formability, has a composite structure composed of polygonal ferrite and bainite and containing from 0,01 to 0,15% by weight of C, from 0.01 to 1.5% by weight of Si and from 0.3 to 2.0% by weight of Mn, the rest being Fe and impurities, the areal ratio of the bainite being from 3 to 60%. The steel sheet is suitable as a material for wheel rims or discs for automobiles.

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