Ukusebenzisa intsimbi ye-40Cr, ngokuhambelana ngokungqongqo kunye neemfuneko zenkqubo, ukucwangciswa kokuqala, ukucima kunye nokushisa ukushisa kwe-HRC30-35, ukugqiba ukugqiba kunye nokugqiba ukujika, kwaye ekugqibeleni ukugaya ukuze kuqinisekiswe umgangatho wemveliso, ngokungqongqo ngokuhambelana ngokuqaphela ukunyamezela.