20Mn2, 40Mn2, le 50Mn2 kaofela ke litšepe tsa alloy tse tlase tse nang le mefuta le thepa e fapaneng.
Lipoleiti tsena tsa tšepe li atisa ho sebelisoa ha ho etsoa likarolo tse fapaneng tsa mochine le likarolo tse hlokang matla a phahameng, ho tiea le ho hanyetsa ho apara. Lintlha tse tobileng tsa lipoleiti tsa tšepe, tse kang litekanyo, mamello, le ho qeta holimo, li ka fumanoa ho bafani ba tšepe kapa bahlahisi ho latela litlhoko tsa hau tse khethehileng.