Li-thunya tsa tšepe tsa 321 li tsoa mela e se nang mabele e entsoeng ka li-steel tse entsoeng ka alloy, Nickel, Molybegen le naetbe. Steels Steel 321 Thutong e matla ea 321 bakeng sa ho sebelisoa libakeng tse bopehileng. Ka nako e ts'oanang, li-stuls tsa tšepe tse 321 li na le thuso bakeng sa lits'ebetso tse ngata tse kenyelletsang ho pepesetsoa mocheso o phahameng le libakeng tse matla. Lijo tse nang le s32100 ha li na likarolo tse ikhethang tsa ho tšoarella, matla a phahameng a phahameng le thepa e ntle haholo ea ho atisa. Li-stel tsa steel wnr li fana ka likhanyetso tsa Corros, tse kang li-studio tsa methapo ea li-aspheric, jj. Motheong Corvice Corsura e ka hlaha libakeng tsa chloride, hammoho le Colossion ea khatello ea maikutlo e oela ka holim'a likhato tse ka bang likhato tse ka bang 60. E loketseng lits'ebetso tsa malato la lapeng, lirekoti tsa tšepe tse 321 li fana ka khanyetso e ntle ea moea ebile ho bonolo ho e etsa.