301 Full Hard ndi chitsulo chosapanga dzimbiri chopangidwa ndi austenitic chomwe chimasiyana ndi mitundu ina ya 301 yoperekedwa ndi United Performance Metals chifukwa chakuti yapindidwa mozizira mpaka kukhazikika kwake konse. … Mu mkhalidwe wake wonse wolimba, mtundu wa 301 uli ndi mphamvu yokoka ya 185,000 PSI yocheperako, ndipo mphamvu yotsika ya 140,000 PSI.