1) Bulk Density: 1.54-1.60g/cm3 2) Real Density: 1.88-2.12g/cm3 3) Resistance: 15-55 4) Expansion: 0.4-1.5% Semi-graphitic Cathode Carbon Block is made of high quality and high temperature 1800 centigrade electrical calcined anthracite,graphite particle as raw material,pitch as binder,through forming,and baking under temperature 1350 centigrade.It acts as both electrical conductive material and ...