Uddeholm Idun


Uddeholm Idun is the world’s first patented corrosion resistant tool holder steel. It is delivered in pre-hardened condition and provides the possibility to start machining the finished part directly.

Uddeholm Idun shares the superior qualities that always accompany the members of the Uddeholm Tool Holder Concept – meeting your requirements on durability while still being good to machine. With Uddeholm Idun we offer you even more: a possibility to change the game. A corrosion resistant steel grade that is delivered in pre-hardened condition.

Uddeholm Idun allows you to skip the long and costly process of hardening, surface treatment and the transportation in between that is normally required with standard materials. A safe and reliable fast forward button to your finished product. It shortens tool making lead time and improves tool holder durability. It is e.g. perfect for custom made tool holders.

  • Corrosion resistant
  • Big savings in time and money
  • Environmentally friendly
  • First corrosion resistant tool holder grade on the market
  • Delivered in pre-hardened condition
  • No heat treatment or nickel coating needed
  • Good machinability
  • To replace standard tool holder materials
  • Health benefits – no nickel handling
  • Sustainable tool steel: 86,04% recycled content

Uddeholm Idun

  • Corrosion resistance 70%
  • Wear resistance 55%
  • Polishability 80%
  • Toughness 55%


  • Corrosion resistance 10%
  • Wear resistance 10%
  • Polishability 70%
  • Toughness 80%
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Chemical composition
C 0.20 Si 0.90 Mn 0.45
Cr 13.50 Mo 0.20 Ni 0.60
V 0.25 Al 0.02 N 0.10
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