Chubu wathu graphite unapangidwa mkulu chiyero graphite, graphite amadziwika kuti ndi imodzi mwa zinthu kwambiri kutentha kutentha kugonjetsedwa. Malo ake osungunuka ndi 3850 ℃ + 50 ℃, malo otentha a 4250 ℃. Mitundu yosiyanasiyana ndi diameters machubu a graphite amagwiritsidwa ntchito potenthetsera ng'anjo, malo otentha.