Tungsten Carbide Systems
Tungsten carbide is not a process but a family of highly wear-resistant materials used with different binder matrices in processes such as HVOF or PTA. UMEK evaluates WC-CoCr, WC-Co and WC composite systems according to the application.
When is it the right choice?
For surfaces operating under abrasive wear, erosion and high contact loads, the appropriate carbide system is selected taking into account the operating environment, corrosion, impact and temperature.
Selection Based on Project Conditions
What does it deliver when used correctly?
- Very high abrasive wear resistance
- Adaptable to the operating environment through binder selection
- Different thickness and bonding characteristics depending on HVOF or PTA
- Functional surface achieved by final grinding
FAQ
On which parts is tungsten carbide coating used?
It is used on parts exposed to abrasive wear and erosion, such as pump shafts, hydraulic pistons, valve surfaces, drill string components, and rolling mill and galvanizing rolls.
What is the difference between WC-Co and WC-CoCr?
In both, hardness comes from the tungsten carbide phase; the chromium addition in WC-CoCr increases corrosion and oxidation resistance. For more detail, see our WC-Co vs WC-CoCr guide.
What is the temperature limit of tungsten carbide coatings?
WC-based coatings are generally preferred up to approximately 500°C. At higher temperatures, systems such as Cr₃C₂-NiCr are considered.
Is It Right for Your Part?
Send us photos, technical drawings and operating conditions, and we will evaluate the process and material system together with you.