... % Ash: 0.5%,Moisture:0.5% Size:1-5mm Calcined petroleum coke CPC:carbon content: 98.5%S content: 0.5%Ash ... .5%Size:1-5mm ,2-6mm or as customer requirementcalcined petroleum coke CPC has been widely used for steel-smelting, casting, brake ... and ball iron casting.2. characters: high carbon content, low sulphur, nitrogen and harmful impurities, efficient and stable, high absorbability of carbon ...