I-Beryllium yethusi yethusi yocingo ihlanganisa ukwakheka ngezakhiwo eziphakeme kakhulu lapho kudala - lukhuni lukhuni ku-1050 MPA. Bangakwazi ukubekezelela ukucindezelwa okuphezulu, benze kahle emazingeni okushisa aphakeme futhi bamelana kakhulu nokugqwala. Ukusebenza kukagesi kwe-Beryllium Copper kungama-IA angama-20 kuye kwangama-60%.