Calcined petroleum coke/CPC C 98.5%min S 0.05%min Ash 1%min V.M 1%min Moisture 0.5%max Calcined petroleum coke/CPCIt used as carburizer in metallurgy industry,reducer in chemical industry,foundry modifier,fireproof ect.C 98.5%min S 0.5%min Ash 1%min V.M 1%min Moisture 0.5%maxSize:0.5-3mm,0-1mm,0.5-5mm,1-5mm,3-8mm,etc Calcined petroleum coke/CPC for steel and casting