Imininingwane eyinhloko ye-graphite petroleum coke yilena elandelayo: okuqukethwe komswakama ngaphansi kuka-0.5%, isibabule ngaphansi kuka-0.05%, i-phosphorus phakathi kuka-0.04-0.01, i-hydrogen nitrogen ngaphansi kuka-100%ppm. Okuqukethwe okuphezulu kwekhabhoni kosayizi wezinhlayiyana kuphakathi, i-porosity izoba nkulu kakhulu, isivinini sokumunca siyashesha, futhi ukwakheka kwamakhemikhali ayo kuhlanzekile, izinga lokumunca lizoba phezulu. Usayizi wezinhlayiyana 0-5mm, 1-5mm, 0-10mm, njll., ungacutshungulwa ngokuya ngezidingo zamakhasimende.
