Hardfacing

Hard facing is the process of applying a hard wear resistant material to a softer base material or substrate in order to extend a products life or use in service. A typical example may be applying a tungsten carbide overlay over a steel ground engagement tool. This has the effect of dramatically extending the products life.

Hardfacing can be applied to almost any product

To find out how to select a specific hardfacing for your product go here

To find out about application processes go here

To find out about different hardfacing materials and their properties go here

Typical industry standards for hardfacing materials include tungsten carbide based materials and chrome carbide based materials.

Both of these materials are very hard and wear resistant and provide good service in a range of conditions.

Tungsten carbide is a hard wear resistant material that can be produced through a reaction of tungsten and carbon but is more commonly produced by a carbothermal reduction of Tungsten Oxide. Tungsten carbide has a high hardness (Typically 2200 -3000 vickers) for the unalloyed material. See here for more details about tungsten carbide and its forms and applications.

Typical industry forms include welded application, brazed, HVOF and tiles. See here for details

Chrome carbide is a hard wear resistant material made from chrome and carbon   - typically in a steel/iron matrix with 5-35% chrome. The higher the chrome content the harder the product and typically the more wear resistant it is as well. However this also increases the brittleness of the product and so a trade off between impact resistance and wear resistance is required in some situations. Click here to find out more about Chrome Carbide