Graphite Petroleum Coke waxay kor u qaadi kartaa nukleation-ka garaafka ee birta dareeraha ah, waxay kordhin kartaa tirada garaafka spheroidal, waxayna hagaajin kartaa qaabka iyo darajada birta cawl.
Iyada oo ku saleysan kormeerka qaab-dhismeedka yar-yar, astaamaha Graphite Petroleum Coke waa sida soo socota:
Marka hore, waxay si weyn u kordhin kartaa saamiga ferrite ee birta kabka nodular iyada oo aan lahayn stabilizer pearlite;
Marka labaad, waxay kordhin kartaa boqolkiiba V iyo VI garaafyada qaabaysan marka la isticmaalo;
Seddexaad, marka la barbardhigo hagaajinta qaabka graphite spheroidal, kororka weyn ee qadarka graphite spheroidal wuxuu yarayn karaa isticmaalka wakiilka qaaliga ah ee nukliyeerka ah ee dib-u-habaynta yar-yar ee dambe waxayna badbaadisaa kharashka si cajiib ah.
