Uddeholm UK

Uddeholm Carmo


Uddeholm Carmo is a prehardened medium alloyed tool steel suitable for short and medium run tooling in applications where a very high chipping resistance is required. The property profile makes Uddeholm Carmo a robust cold work tool steel for heavy duty blanking and forming. It is delivered prehardened to 240-270 hb. <ul> <li>Short tool making lead times</li> <li>Safe and consistent production</li> <li>Cost efficient tool making/production</li> <li>The prehardened delivery condition makes flame- , induction or laser hardening easier</li> <li>High reliability for tools in severe cold work applications where there is a high risk of chipping</li> <li>Reduced maintenance and downtime costs combined with increased productivity due to the reduced likelihood of premature failures.</li> <li>Good weldability and the availability of welding electrodes with the same chemical composition as Uddeholm Carmo.</li> </ul>
  • High toughness and ductility
  • Good wear resistance (adhesive-mixed wear profile)
  • Good through hardening properties
  • Good stability in hardening
  • Good weldability
  • Very good flame-, induction- and laser hardenability

Uddeholm Carmo

  • Abrasive wear resistance 20%
  • Adhesive wear resistance 30%
  • Ductility/edge chipping resistance 85%
  • Toughness/gross cracking resistance 80%
  • Hardness (HRC) max 50%

Reference grade Cold Work (D2)

  • Abrasive wear resistance 55%
  • Adhesive wear resistance 25%
  • Ductility/edge chipping resistance 20%
  • Toughness/gross cracking resistance 10%
  • Hardness (HRC) max 62%
Chemical composition
Carbon .6 Silicon .35 Manganese .8
Chrome 4.5 Molybdenum .5 Vanadium .2
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