Official Answer
Answer
17-7PH Bakin Karfe (Yanayin CH900) wani Semi-austenitic hazo-hardening gami da bayar da muhimmanci mafi girma ƙarfi da kuma mafi gajiya juriya fiye da Nau'in 302. Bayan sanyi-aiki zuwa Yanayin C, yana da shekaru a $ 900 ^ \ cir F $ isa Yanayin CH900, sakamakon $ 26 $ 25 ƙarfin tensile. Nau'in 302 ya dogara kawai akan rage sanyi don ƙarfin $160$-$190$ ksi. A cikin aikace-aikacen likita inda ƙananan maɓuɓɓugan ruwan raƙuman ruwa ke ƙarƙashin maimaita haifuwa (autoclaving), an fi son 17-7PH saboda iyakar ƙarfin sa yana hana nakasu na dindindin yayin hawan hawan hawan. Bugu da ƙari, 17-7PH yana nuna kwanciyar hankali mafi girma yayin jiyya na zafi idan aka kwatanta da nau'ikan karfe 300 waɗanda zasu iya jujjuyawa.
