ASME B18.2.1 B18.2.2 Puv UNR tsis paub tsis pom kev ATM A320 L7M HEX Hex Bolt thiab Ceev
Asme SA 335 P91 Alloy Steel Yeeb tau kuj muaj qee qhov kev ua haujlwm zoo li kev tu siab, ntau dua, thiab lwm yam.
Chromium tiv thaiv oxidative corrosion hauv asmea sa182m alloy steel f9 yeeb nkab flanges. Txawm li cas los xij, xav tias nws cov ntsiab lus yog tsawg dua 12%, nws cov khoom antioxidant zoo li yuav nyob hauv nruab nrab. Ntxiv nrog rau oxidation zoo tiv thaiv, muaj cov chromium nyob rau hauv alloy kom ntseeg tias cov astm A182 f9 cov khoom siv tsis txheeb. Nyob rau tib lub sijhawm, Alloy Steel A182 F9 flanges yog qhov loj heev hauv qhov loj me piv rau lwm cov flanges. Yog li no, cov flanges no zoo li yuav haum kom haum rau hauv cov chaw ua haujlwm nruj. Ib qho ntxiv, Alloy Steel A182 F9 flanges muaj qee qhov nyiaj ntawm chromium thiab molybdenum. Cov kev pab tswj kom muaj kev txom nyem, muab cov flanges lub neej ntev. Yog li ntawd, nrog kev koom tes ntawm chromium thiab molybdenum, cov flanges tau txhim kho corrosion tsis kam.