Duplex Bakin Karfe

Duplex bakin karfe 2205 (kuma aka sani da UNS S31803/S32205, ASTM A240 Nau'in 2205, Inox 2205, AISI 318LN, SUS 329J3L, ko EN 1.4462) kashi biyu ne (ferritic) alloyste chromium-23. 2.5-3.5% molybdenum, 4.5-6.5% nickel, kuma kusan 0.15% nitrogen. Madaidaicin microstructure ɗin sa yana ba da haɗin kai na musamman na babban ƙarfi da kyakkyawan juriya na lalata. Misali, aji 2205 yawanci yana da kusan sau biyu ƙarfin yawan amfanin ƙasa na bakin karfe 316L, yana barin masu zanen kaya suyi amfani da mafi sirara, sassa masu sauƙi ba tare da sadaukar da aikin ba.

Ana ba da alloy ɗin a cikin yanayin da aka warware (a kowane ASTM A240/A240M) don riƙe ingantaccen tsarin duplex. Matsayi 2205 ya kasance mai tauri daga yanayin zafi na cryogenic (kusan -50 ° C) har zuwa kusan + 300 ° C; Bayan wannan kewayon, lokacin sigma mai gatsewa zai iya samuwa a cikin walda. Waɗannan kaddarorin suna yin duplex 2205 kyakkyawan zaɓi don aikace-aikacen buƙatu kamar sarrafa sinadarai, mai & iskar gas, da mahalli na ruwa inda ake buƙatar ƙarfin ƙarfi da juriya na chloride.