Boitsebiso bo ka tšoaroa ka mofuthu le ho tloaela moeeng, kapa ba halefa moea kapa oli. Alloy 4130 e na le litaba tse ka tlase tsa khase ea 0.28% - 0,33% le likarolo tse ling tse phahameng haholo. 'Me boitsebiso bo bonolo ho sebetsa. 4140 steel alloy e na le mefuta e 'meli ea 2. 375 "ho 12,750" ho ea le literateng tsa lerako ho tloha ho 0.375 "ho isa ho 1.5". Alloy 4145 e na le li-carbon e phahameng haholo ho feta 4140 Mefuta ea liphaephe.
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