Tungsten carbide grit is the material applied to components of applications with a high level of abrasion. Through hardfacing,tungsten carbide grit can be applied to a new part in order to better its wear resistance or to a used part to restore its worn-down surface.
Grit is used for long lasting wear protection in areas of high abrasive wear. It is used to keep costly parts – bulldozer blades,wood grinding tips, trencher teeth, and bucket teeth – from wearing down quickly. Using tungsten carbide grit on machinery parts that see a lot of wear and tear significantly extends the life of those parts. For this reason it is used in many different applications including woodwaste, agriculture, wear parts, plow attachments, and drilling. Grit adds an extra layer of protection to costly parts, increasing efficiency and decreasing downtime.
Tungsten carbide properties of a particular "grade" of carbide are determined by its composition (its constituents and their relative amounts), the size distribution of the tungsten carbide grains after sintering, the binder metal type and content, the quality of the raw materials used, and the workmanship with which the material is made.
Tungsten carbide grits size
The normal size (mesh) of tungsten carbide grits
1-12 mesh ,
12-20 mesh,
20-30 mesh ,
30-40 mesh,
40-60 mesh,
60-80 mesh .
Cemented Tungsten Carbide Properties of Hardness
Hardness is the resistance of a cemented carbide to penetration by a diamond indented under a specific load. It is measured on the Rockwell A (Ra) scale in the US and on the Vickers (HV10 or HV30) scale in Europe and elsewhere. Hardness is primarily a function of composition and grain size with higher binder metal contents and coarser tungsten carbide grain sizes producing lower hardness values. Conversely, low binder contents and fine grain sizes produce high hardness values. Hardness is directly related to abrasive wear resistance.
Cemented carbide grits are used to form a hardened wear-resistant layer on the surface of the tool or working part used for welding, so as to protect the tool or working part from wear and increase the service life of the tool or working part.
Cemented carbide grits are widely used in drilling and manufacturing, construction machinery, metallurgy and mining
The tungsten carbide grit is suitable for hard facing material.
1 mesh to 12 mesh: used for wear-resistant electrode and mace electrode;
10 mesh to 60 mesh: used for saw blade or play a role of wear-resisting welding in the metal surface.
Tungsten carbide grit has been acknowledged throughout oil drilling, mining and construction industry worldwide for high wear resistant properties. The use is even spreading to more industries and gets greater uses.