DS EN 10263-4:2001 Steel Rod, Bars And Wire For Cold Heading And Cold Extrusion - Part 4: Technical Delivery Conditions For Steels For Quenching And Tempering Pertains to round rod and round bars and wire with a diameter up to and including 100 mm, of non-alloy and alloy steel, intended for cold heading and cold extrusion and subsequent quenching and temper