Tungsten Potassium Alloy (WK65)

Want to keep this datasheet? Save it now in your required format


Tungsten is doped with 60 to 65 ppm potassium and the material is formed to create wire products with an elongated stacked microstructure. This microstructure gives the material excellent high-temperature properties such as good creep resistance and dimensional stability. Special production steps can be used to make WK65 more load-resistant than WVM.

This material data has been provided by Plansee.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts


Chemical properties



6E-4 - 6.5E-4 %

Show Supplier Material materials with Potassium of 6E-4 - 6.5E-4 %