Igrafite petroleum coke yenziwe ngecoke yepetroleum ekumgangatho ophezulu njengemathiriyeli ekrwada ngobushushu obuphezulu begraphitization kwi2800-3000 ºC. Ineempawu zomxholo wekhabhoni esisigxina, umxholo wesulfure ophantsi, umxholo womlotha ophantsi kunye nezinga eliphezulu lokufunxa. Isetyenziswa ngokubanzi kwi-metallurgy, casting kunye namanye amashishini. Ingasetyenziselwa ukuvelisa insimbi ephezulu, insimbi ekhethekileyo, ukuguqula ibakala lentsimbi ye-nodular kunye ne-grey iron, kwaye ingasetyenziselwa njenge-arhente yokunciphisa kwishishini lemichiza.
