Carbon-graphite ke sesebelisoa sa ho itlotsa, 'me ke sesebelisoa sa sefahleho se tenyetsehang se sebelisoang ka mehele ea ho kopanya ea thepa e thata joalo ka silicon carbide, alumina, kapa tungsten carbide. Ourcarbon e na le litšobotsi tse phahameng tsa ho apara le khanyetso e pharaletseng ea lik'hemik'hale. Li-corrodents tse matla tse kenyelletsang hydrofluoric le nitric acid, li-carbongrades tse khethehileng li fumaneha.