Reinforcing steel for concrete

Details Reinforcing steel for concrete Reinforcing steel for concrete

C - Chemistry, Metallurgy

21

D

148/50

C21D 8/08 (2006.01) C21D 9/52 (2006.01)

Patent

CA 1129312

REINFORCING STEEL FOR CONCRETE ABSTRACT OF THE DISCLOSURE The invention relates to weldable concrete reinforcing steel and a method of forming such steel. In this steel there is a central zone consisting of a perlite-ferrite mixture and a surface zone of annealed martensite. There is no intermediate layer or layers between the central zone and the surface zone. The steel is formed by a special cooling treatment in which transformation to bainite is avoided. The steel is advantageous because it is inexpensive to manufacture but is suitable for welding without loss of its advantageous characteristics. The steel can also be manufactured into ribbed rods also without loss of advantageous characteristics.

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