Answer
SAE 1070 carbon karfe bai dace da tsarin shayewa ba saboda kayan aikin injinsa suna raguwa da sauri sama da $250 ^{\circ}F$, kuma ba shi da juriya da iskar shaka. A286 superalloy ne na tushen ƙarfe (UNS S66286) wanda aka ƙera don ci gaba da sabis har zuwa $1300^{\circ}F$. A286 yana ba da ƙarfin ƙarfi mai ƙarfi kuma yana kula da ƙayyadaddun yanayin elasticity a yanayin zafi mai tsayi. Ba kamar carbon karfe, A286 ne hazo-hardenable (maganin magani da kuma tsufa) don cimma taurin 35-42 HRC. A cikin wuraren shaye-shaye, A286 yana samar da Layer oxide mai kariya wanda ke hana kara lalata. Ga masu zanen kaya, yin amfani da A286 yana nufin ƙarfin tuƙi da aka ƙididdige shi a zafin daki zai kasance da daidaito yayin zagayowar yanayin zafi na aikin injin.
