ASTM A209 yog cov lus qhia tshwj xeeb uas tau qhia txog kev ua tsis tau zoo thiab welded alloy steel yeeb nkab siv nyob rau hauv high - qhov ntsuas kub. Tshwj xeeb, cov qauv no suav nrog ntau qib, xws li T1 thiab T1, uas yog feem ntau sib txawv los ntawm lawv cov tshuaj lom neeg muaj pes tsawg leeg. ASTM A209 kav yog cov yam ntxwv zoo los ntawm lawv lub zog zoo thiab ua rau oxidation oxidation, ua rau lawv haum rau ib puag ncig. Cov khoom siv no ua rau cov kav dej txhawm rau tswj lawv cov qauv txheej txheem kev ncaj ncees txawm tias thaum muaj kev lag luam siab thiab kub, uas yog cov khoom siv hluav taws xob zoo li cov khoom siv hluav taws xob thiab petrochemicals.
Kev ua yeeb yam ntawm ASTM A209 kav yog cov ntsiab lus hauv cov ntawv thov uas xav kom muaj kev ntseeg tau thiab kav ntev. Nrog cov muaj pes tsawg leeg uas feem ntau suav nrog cov khoom siv chromium thiab molybdenum, cov kav dej nthuav qhia cov khoom siv tshuab ua kom zoo dua qub thiab lub zog ua kom zoo dua qub. Qhov no ua rau TTM A209 qhov kev xaiv zoo tshaj plaws rau cov superheaters, cov nyiaj txiag, thiab cov khoom siv zoo sib xws hauv chav boilers. Lub peev xwm ntawm ASTM AT209 kom tiv taus thermal cycling thiab siab} Kev nyab xeeb ntawm kev ua haujlwm zoo ua rau kev ua haujlwm hauv siab {}}}} thov cov haujlwm.
Nyob rau hauv cov nqe lus ntawm cov ntawv thov, Astm A209 tau siv dav hauv kev tsim khoom ntawm cov khoom siv rau cov hluav taws xob thiab kev lag luam boilers. Nws cov yam ntxwv kev ua kom zoo ua nws haum rau high- cov ntaub ntawv siab uas yuav tsum muaj peev xwm ua kom muaj zog hloov pauv kev hloov pauv. Ib qho ntxiv, Astm A209 kav tau ua haujlwm hauv cov roj thiab roj ua kom zoo dua, uas qhov kev ua haujlwm txhim khu kev qha yog qhov tseem ceeb. Raws li kev ua tiav kev ua tiav ua ntej, qhov tseem ceeb ntawm Astm A209 tseem tseem ceeb hauv cov ntawv thov niaj hnub no, qhov kev nyab xeeb cov qauv tsis yog {sib tham. Cov txheej txheem txuas ntxiv ntawm kev tsim cov txheej txheem tsim kev tsim khoom nrog ASTM A209 kuj tseem ua tau raws li kev sib tw hauv lub roob hauv pes niaj hnub no.
Cim npe nrov: ASTM AT209, Tuam Tshoj ASTM AT209 Tus Neeg Muag Khoom, Lub Hoobkas
