Answer
$ 17-7PH $ (AISI 631) a cikin yanayin CH900 yana ba da ingantaccen haɗin gwiwa mai ƙarfi da juriya na lalata idan aka kwatanta da $ 302 $ Bakin Karfe. $17-7PH$ yana jurewa tsarin taurin hazo (Sharadi C zuwa CH900) wanda ke ba da ƙarfin juzu'i har zuwa $240$ ksi. Wannan yana ba da damar haɓaka matakan damuwa ($ σ_{duk} \kimanin 0.75 \cdot σ_{uts}$) da ƙaramin sawu don kaya iri ɗaya. Bugu da ƙari, $17-7PH$ yana nuna mafi kyawun juriya a yanayin zafi har zuwa $650^{∘}F$ ($343 ^{∘}C$). Sabanin haka, $302$ Bakin Karfe, yayin da mai rahusa kuma mai tsananin ƙarfi, an iyakance shi zuwa kusan $550^{∘}F$ ($288 ^{∘}C$) kuma yana da ƙananan iyakokin gajiya. Don mahimman abubuwan haɗin sararin samaniyar manufa, canjin lokaci a cikin $17-7PH$ yana ba da daidaiton girman da ake buƙata don aikace-aikacen bazara mai jurewa.
