| Tungsten Carbide particles have a hardness of 2500DPH
and provide for extreme low stress (sliding) abrasion resistance, especially when blended
with tough, wear resistant matrix of either Cobalt, Nickel, or Iron base alloy system. The
matrix selection and carbide particle size are key factors in achieving optimum abrasion
resistant performance in a particular application. Typically, when determining the most
suitable combination, it is important to consider the following wear-mode characteristics:
Temperature, Corrosion, Particle Size, and Impact. Two standard "rules of thumb"
are: Utilize the cobalt or nickel base matrix in the presence of high temperature and/or
corrosion, and; The finer the abrasive particle, the finer the carbide particle
requirement. Impact resistance is proportionate to the amount of matrix, and the impact
resistance of the matrix. Iron based products with larger carbide particles are usually
best suited for applications where high stress (gouging & grinding) abrasion is
prominent. Comparative
Compositions Chart |
