Various alloys available (low carbon, high carbon, chrome steel, stainless steel, etc.) in a variety of forms:
Ball bearings Good wear, very round but will result in metallic
contamination. Cost directly related to material and inversely proportional to
size. 1/16" to 6".
Shot Irregular shapes with lumps and bumps, but only cost effective
alternative for steel in sizes less than 1mm. Inexpensive, sizes from 90
microns to 3mm.
Other forms Steel wire can be cut and formed to produce diagonals,
ballcones (looks like a flattened ice cream cone), pins (rods), oval balls and
other shapes.
Click here for up-to-date grinding media price list. Last revision September 2007. (PDF - 181kb)
