With its outstanding thermal fatigue resistance, thermal conductivity, and temper back resistance, Uddeholm QRO 90 Supreme excels as a tool steel where tools temper down quickly to lower hardness. In applications such as hot stamping, brass forging, die casting core inserts and brass extrusion.
Excellent high temperature strength and hot hardness
Very good temper resistance
Unique resistance to thermal fatigue
Excellent thermal conductivity
Good toughness and ductility in longitudinal and transverse directions