SA213 lub raj xa dej siab siabseries yog ib qholub raj xa dej siab siabseries. Haum rau cov kav hlau ferritic thiab austenitic uas tsis muaj qhov sib txuas nrog phab ntsa tsawg kawg nkaus rau cov boilers thiab superheaters thiab cov kav hlau austenitic rau cov khoom sib pauv cua sov.

Cov kav dej kub siv rau hauv cov boilers siab qis thiab nruab nrab (qhov siab ua haujlwm feem ntau tsis pub tshaj 5.88Mpa, qhov kub ua haujlwm qis dua 450 ℃); siv rau hauv cov boilers siab (qhov siab ua haujlwm feem ntau siab dua 9.8Mpa, qhov kub ua haujlwm yog nruab nrab ntawm 450 ℃ ～ 650 ℃)) cov kav dej kub, cov superheaters, cov reheaters, cov kav dej kev lag luam petrochemical, thiab lwm yam.

ASME SA213 T12Cov yeeb nkab hlau alloy, tus thawj coj hauv American standard seamless steel pipes, yog siv dav hauv roj av, kev lag luam tshuaj lom neeg, hluav taws xob thiab lwm yam kev lag luam. Cov yeeb nkab hlau no yog ua los ntawm cov hlau zoo. Tom qab ua tib zoo ua ntau yam txheej txheem, nws muaj lub zog siab thiab tiv taus corrosion siab. Nws tuaj yeem ua tau raws li qhov yuav tsum tau siv hauv ntau qhov chaw nyuaj.

Nws cov txheej txheem tsim khoom yog qhov nyuaj thiab zoo heev, suav nrog kev smelting, dov, tho, kos duab txias, kho cua sov thiab lwm yam txuas. Thaum lub sijhawm tsim khoom, cov yeeb nkab hlau raug kuaj pom ntau qhov tsis zoo thiab tsis ua puas tsuaj kom ntseeg tau tias nws zoo heev thiab kev ntseeg siab. Kuj tseem muaj ntau yam kev tshuaj xyuas tshuaj lom neeg, kev tshuaj xyuas metallographic thiab lwm yam kev xeem kom ntseeg tau tias nws cov khoom sib xyaw, cov qauv kev teeb tsa, kev ua tau zoo thiab lwm yam ntsuas tau ua raws li cov qauv.

Cov yam ntxwv ntawmASME SA213 T12Cov yeeb nkab hlau alloy yog raws li nram no:
1. Lub zog siab: Nws muaj lub zog tensile siab thiab qhov taw qhia tawm, thiab tuaj yeem tiv taus cov khoom loj thiab kev cuam tshuam.
2. Kev tiv thaiv corrosion siab: Nws muaj kev tiv thaiv corrosion muaj zog hauv ntau qhov chaw nyuaj, xws li cov kua qaub, alkalis, ntsev thiab lwm yam tshuaj lom neeg thiab cov chaw ib puag ncig xws li kub thiab qis.
3. Kev ua haujlwm vuam zoo: Ua los ntawm cov hlau zoo, nws tsis yooj yim tawg, qhov hws thiab lwm yam teeb meem thaum vuam, ua kom ntseeg tau tias vuam zoo thiab ntseeg tau.
4. Ntau yam kev siv: Nws yog siv dav hauv roj av, kev lag luam tshuaj lom neeg, hluav taws xob thiab lwm yam kev lag luam, xws li cov kav dej roj thiab roj av, boilers, reactors thiab lwm yam khoom siv.