Pure chromium is produced at PLANSEE under the name Ducropur as an unalloyed metal with a guaranteed purity of 99,96 %. Duropur has a melting point of approx. 1900 °C and a density of 7.19 g/cm3. The coefficient of thermal expansion between room temperature and 500 °C is at 8,6x10-6 [K-1].

Advantages of Cr:

• excellent corrosion resistance
• good hot gas corrosion resistance above 900 °C
• good corrosion resistance in contact with V2O5 and Na2SO4-containing slags  

Typical areas of application of Ducropur:

• filter candles for the environmental technology
• targets for the sputtering technology
• components for the chemical apparatus engineering
• glass and ceramics production