RQT 501 is a quenched and tempered structural steel available in thicknesses 8 to 100 mm (0.3 to 4.0 in.) that combines high strength with excellent forming and welding performance. 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-662. Producer or source: Europe, Corus Long Products.