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Manufacturing process of seamless steel tube

2016/7/12      view:

        1.Hot rolling (extrusionSeamless steel tube):Round tube blank, heating, perforation, three roll skew rolling, continuous rolling or extrusion, off tube, sizing (or reduction), cooling, straightening, water pressure test (or testing), marking, storage


        2.Cold drawing (rolling)Seamless steel tube:Round tube billet, heating, perforation, heading, anneal, washing, oiling (copper), multi pass cold drawing (cold), blank pipe, heat treatment, straightening straight, water pressure test (testing), marking, storage.