Ubufakazi bokuqhuma kwe-Shenhai
Amafu othuli lwe-graphite anamandla amancane okuthungela angu-9mJ, nezinga lokushisa eliphansi kunawo wonke lingu-520°C, kanye nomfutho wokuqhuma omkhulu ofinyelela ku-0.7723MPa.
Inkomba yokuqhuma ikalwa ku-27.3098MPa/s. Ekuhlanganiseni okungu-500g/m^3, kokubili ukucindezela kokuqhuma kanye nenani eliphakeme lenkomba yokuqhuma. Ukugxila komkhawulo ongaphansi kokuqhuma kuphakathi kuka-40-50g/m^3.