I-graphitized petroleum coke iguqula i-petroleum coke ibe yikristale yekhabhoni ekristale enemigca emihlanu kubushushu obuphezulu obumalunga nama-3000 degrees kwisithando se-graphitization, oko kukuthi, i-petroleum coke iba yigraphite. Le nkqubo ibizwa ngokuba yi-graphitization. I-petroleum coke ecutshungulwa ngenkqubo ye-graphitization ibizwa ngokuba yi-graphitized petroleum coke.