Uddeholm UK

Uddeholm QRO 90 Supreme


<div class=" et_pb_row et_pb_row_0"> <div class="et_pb_column et_pb_column_4_4 et_pb_column_0"> <div class="et_pb_module et_pb_tabs et_pb_tabs_0"> <div class="et_pb_all_tabs"> <div class="et_pb_tab clearfix et_pb_active_content et_pb_tab_0 et-pb-active-slide"> 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. </div> </div> </div> </div> </div> <div class=" et_pb_row et_pb_row_1"></div>
  • 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

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 .38 Silicon .3 Manganese .8
Chrome 2.6 Molybdenum 2.3 Vanadium .9
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