Select Page

Uddeholm QRO 90 Supreme

EXCELLENT HIGH TEMPERATURE STRENGTH AND HOT HARDNESS

With its outstanding thermal fatigue resistance, thermal conductivity and temper back resistance Uddeholm QRO 90 Supreme excels as a tool steels where tools tempers 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
  • Uniform machinability
  • Good heat treatment properties
  • Dies for simple profiles to be produced in long series requiring more than one die
  • Dies for complicated or thin walled profiles
  • Hollow dies
  • Dies for difficult-to-extrude alloys
  • High temperature casting applications
  • Special forging applications

Uddeholm QRO 90 Supreme

  • Hot wear resistance 55%
  • Plastic deformation resistance 60%
  • Heat checking resistance 80%
  • Premature cracking resistance 35%

Reference Grade Hot Work (H13)

  • Hot wear resistance 40%
  • Plastic deformation resistance 40%
  • Heat checking resistance 40%
  • Premature cracking resistance 35%

Chemical composition

Carbon.38Chrome2.6
Silicon.3Molybdenum2.3
Manganese.8Vanadium.9

Contact us for further information

Please leave this field empty.

Share it