Iphepha elingenasithuli lingenasithuli lama-304 likwanayo i-manganese, ikharbon, silicon, isulfur, i-phosphon kunye ne-phosphorus kwi-phosmotion. Isixhobo somelele kwaye sine-205MPA ubuncinci ubuncinci bokuvelisa amandla kunye ne-515mpa ubuncinci amandla entelekeni ngokubanzi.