Uddeholm Caldie


Uddeholm Caldie is a medium alloyed tool steel suitable for very selective specialist areas within hot work applications with its high scope for hardness giving it the capability to resists hot wear and erosion in some applications areas. The property profile makes Uddeholm Caldie a relatively robust tool steel at high hardness for special applications in Forging and Hot stamping.

  • Uddeholm Caldie can easily be surface treated for improved wear resistance
  • Very good dimensional stability
  • Reduced maintenance and downtime costs combined with increased productivity due to the reduced likelihood of premature failures.
  • Reduced maintenance and downtime costs combined with increased productivity due to simplified maintenance procedures
  • Good weldability and the availability of welding electrodes with the same chemical composition as Uddeholm Caldie
  • Relative high toughness and ductility for a high hardness grade
  • Good hot wear and erosion resistance
  • Very suitable for all types of surface treatments
  • Very good polishability, can achieve high surface finish
  • Good through hardening properties
  • Good dimensional stability in heat treatment and in service
  • Good weldability
  • Sustainable tool steel: 86,87% recycled content

Uddeholm Caldie

  • Abrasive wear resistance 35%
  • Adhesive wear resistance 60%
  • Ductility edge chipping resistance 75%
  • Toughness gross cracking resistance 50%
  • Corrosion resistance 0%

Reference Grade (D2) when using in a trim die application

  • Abrasive wear resistance 55%
  • Adhesive wear resistance 25%
  • Ductility/edge chipping resistance 20%
  • Toughness/gross cracking resistance 10%
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Chemical composition
C 0.70 Si 0.20 Mn 0.50
Cr 5.00 Mo 2.30 V 0.50

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