RQT 601 is a quenched and tempered structural steel available in thicknesses 8 to 80 mm (0.3 to 3.0 in.) that combines high strength with excellent forming and welding performance. Originally published as Alloy Digest SA-665, December 2012, revised April 2014. This datasheet provides information on composition, physical properties, tensile properties, and bend strength as well as fracture toughness. It also includes information on forming, machining, and joining. Filing Code: SA-698. Producer or source: Corus Long Products, Tata Steel.