Our Carbide Grades

The tungsten carbide quality is determined by the quality of the starting powders. This is why AFC Hartmetall places great value on excellent quality. By working closely with our suppliers, we can use raw materials that are tailor-made for our products.

Because tungsten carbide is a composite material made up of several components, the possibilities for producing different carbides are almost unmanageable.

You can vary the proportions of the basic components tungsten carbide (WC) and cobalt (Co), you can vary the initial grain sizes of the powders used, and you can work with different additives to limit the grain growth and to improve the service life.

AFC Hartmetall only produces ultra-fine grain grades with a cobalt content of 6 to 13%. All of these are highly wear-resistant grades from ISO machining groups K10 - K50.

Unique Carbide


In order to produce carbide that meets your requirements, we first have two options for influencing its properties:

We either vary the grain size of the WC starting powder or we vary the WC / Co ratio.

A distinction is made between the finest grain, ultra fine grain and super fine grain varieties. As the grain becomes fineness, the hardness and flexural strength increase, but the toughness decreases.

If the Co content in the cemented carbide increases, the toughness and flexural strength increase, but the hardness decreases.

We would be happy to advise you on the selection of the best carbide for your needs.