Coke ya peteroli ya grafitize ni uguhindura coke ya peteroli mo kristu ya karubone ifite urwego rwa hexagonal ku bushyuhe bwinshi bwa dogere 3000 mu itanura rya grafitize, ni ukuvuga ko coke ya peteroli iba graphite. Iyi nzira yitwa graphitization. Coke ya peteroli itunganywa binyuze mu nzira ya grafitize yitwa graphitized peteroli coke.