The grade of graphite powder refers to the particle size of graphite powder, usually expressed in mesh numbers, and the unit is um (micrometer). Graphite powder can be divided into different specifications according to the mesh numbers, some of which are as follows:
100 mesh: the coarsest particle size, can be used for casting molten iron, precision ceramics and bearing materials.
150 mesh: coarser particle size, can be used for refractory materials, graphite products and lubricating oils.
200 mesh: moderate particle size, can be used for carbon products, bearing materials and paints.
325 mesh: mainly used for refractory materials, conductive materials, wear-resistant materials, lubricants, high temperature resistant sealing materials, graphite emulsions, etc.
600 mesh: mainly used for powder metallurgy, friction materials, lubricants, pencils, pigments, handicrafts, electrode production, etc.
800 mesh: Mainly used for conductive materials, lubricants, refractory materials, high temperature resistant materials, pencils, pigments, electrode production, etc.
1200 mesh: Mainly used for high-purity graphite products, high-purity graphite in the electronics industry, as well as lubricants, pencils, pigments, electrode production, etc.
2000 mesh: Mainly used for high-purity graphite products, high-purity graphite in the electronics industry, graphite paper, lubricants, pencils, pigments, electrode production, etc.
The higher the mesh number of graphite powder, the finer its particles are, and the more suitable it is for high-precision application scenarios. At the same time, different application scenarios have different requirements for the purity, particle size, shape, etc. of graphite powder. Therefore, when choosing graphite powder, it is necessary to choose according to actual needs.