1. Dab tsi yog ATTM A333?
A: AFTM A333 yog tus qauv rau seamless thiab welded steel kav xaim siv tau siv kub hauv tebchaws Asmeskas rau kev sim thiab cov ntaub ntawv (ASTM). Nws yog qhov haum rau cov twj siab piping ua haujlwm nyob rau hauv tsawg ib puag ncig ib puag ncig (feem ntau hauv qab -45℃rau {{3 degree). Tus qauv no qhia txog cov tshuaj lom neeg tshuaj lom neeg, cov khoom siv neeg kho tshuab, cuam tshuam cov kev xav tau, thiab lwm yam ntawm cov kav hlau steel.
2. Dab tsi cov qib AVEM A333 suav nrog?
A: Tus qauv suav nrog ntau qib, feem ntau cov yog:
Qib 1: Tsawg cov pa hlau, feem tsawg kawg siv -45 degree.
Qeb 6: 3.5% npib tsib xee, haum rau qhov tsis tshua muaj kub ntawm -100℃(xws li lng chaw).
Qeb 3/9/9/10/11/11: Cov Lus Sib Txawv Sib Txawv, npog qhov ntsuas kub ntawm -30℃rau -195 degree.
NCO TSEG: Qib 6 thiab qib 3 yog cov kav dej feem ntau siv cov kav dej ntau.
3. Vim li cas AstM A333 cov yeeb nkab steel xav tau kev kuaj mob cuam tshuam?
Teb: Hlau yog nquag mus rau brittle fracture nyob rau hauv tsawg ib puag ncig ib puag ncig cov chaw kub (xws li Charpy V-Nti Kuaj) yog siv los xyuas cov khoom sib zog ntawm cov ntaub ntawv ntawm cov khoom kub tsawg. Tus qauv yuav tsum tau hais tias qhov tsawg kawg nkaus cuam tshuam lub zog muaj txiaj ntsig zoo ntawm qhov ntsuas kub (xws li -196℃rau -45 degree) raws li qib.
4. Dab tsi yog qhov txawv ntawm Astm A333 thiab ASTM A106?
Teb:
Ntau yam: A106 yog tsim nyog rau kev kub siab (-29℃rau +425 degree), thiab A333 yog tsim rau qhov kub tsawg.
Cov Khoom Siv Yuav Tsum Tau: A333 yuav tsum xeem kom dhau qhov kev cuam tshuam kub tsawg-qhov kev cuam tshuam, thaum A106 tsis muaj qhov yuav tsum tau ua.
Daim Ntawv Thov Kev Cai: A333 tau siv rau liquefied nkev (LNG), khoom siv tub yees, thiab lwm yam siv rau cov roj hmab thiab cov raj thermal.
5. Dab tsi yog cov ntawv thov tseem ceeb ntawm ASTM A333 Cov Kav Hlau?
Teb:
Kev Lag Luam Zog: Lng Pipelines, Cov Tshuab Txias.
Cov Khoom Siv Tshuaj: Cryogenic cia tso tsheb hlau luam, Ethylene ntes chav nyob.
Cov txheej txheem: roj / roj roj / roj hauv cov cheeb tsam hauv qab zib lossis thaj chaw txias.
