US Synthetic Bearings Site

Carbide vs PCD vs SCD

Wire drawing dies are made of several materials including tungsten carbide, natural diamond, synthetic single crystal diamond, and polycrystalline diamond (PCD). Here are the facts on each and our recommendations. More

Grain Size

During the sintering process, diamond grains begin to grow together into a matrix structure. The properties of the PCD material can be manipulated by changing the size of the diamond powder before sintering. Surface finish of the wire
and life of the die vary the most with changes in grain size.

Small Grain Size

Large Grain Size