Official Answer
Answer
Nyuma yo gukonjesha, SAE 1070 impeta ya karubone izenguruka ni 'kuzimya amavuta no gutwarwa' cyangwa 'austempered' kugirango ugere kubibazo bisanzwe hagati ya 45-52 HRC. Uburyo bwo gushyuha (gushyushya $ 700-900 ^ {\ umuzenguruko} F $) nibyingenzi kugirango uhindure martensite yoroheje uhindurwe na martensite ituje, itanga ubukana no guhindagurika. Hatariho ubushyuhe bukwiye, impeta zafata mugihe cyo kwishyiriraho iyo zaguwe hejuru yumutwe. Ubukomezi bwa nyuma bugomba kugenzurwa cyane: hejuru cyane biganisha ku bugome, mugihe hasi cyane biganisha kuri 'gushiraho' no gutakaza imbaraga zo kugumana.
