Loj Diameter Stainless Hlau Yeeb Nkab: Qhov ntau thiab tsawg, Qib thiab siv

Thaum cov kav hlau stainless txav mus rau hauv qhov loj dua, xaiv cov khoom tsim nyog muaj ntau dua li xaiv qib xws li 304L lossis 316L. Cov yeeb nkab txoj kab uas hla, phab ntsa thickness, txoj kev tsim, kev ua haujlwm ib puag ncig, siab thiab cov qauv siv tau tuaj yeem cuam tshuam rau qhov project nqi, fabrication thiab ntev - lub sij hawm cia siab rau.

Rau cov neeg yuav khoom thiab cov engineers, cov lus nug tiag tiag tsis yog qhov loj npaum li cas aLoj Diameter Stainless Hlau Yeeb Nkabtuaj yeem ua tau, tab sis qhov loj me, qib thiab kev tsim kho qhov twg tsim nyog rau cov kev pabcuam tiag tiag.

Tsis muaj ib lub ntsiab lus dav dav ntawm "qhov loj" uas siv rau txhua qhov kev lag luam.

Hauv kev lag luam piping, lo lus feem ntau yog siv rau cov yeeb nkab steel hlau pib ncig NPS 14, NPS 16, NPS 20 lossis siab dua, nyob ntawm tus neeg xa khoom, cov txheej txheem tsim khoom thiab qhov project specification.

Raws li cov yeeb nkab txoj kab uas hla nce, kev tsim khoom yuav tsum tau hloov. Qhov ntau thiab tsawg yog feem ntau muab raws li welded yeeb nkab vim seamless ntau lawm ua ntau txwv thiab kim ntawm loj diameters.

Vim li no, Cov Yeeb Nkab Loj Loj Stainless Hlau yuav tsum tau teev tseg los ntawm ntau tshaj OD ib leeg. Cov neeg yuav khoom kuj yuav tsum tau txhais cov yeeb nkab nominal loj, phab ntsa tuab lossis lub sijhawm, cov khoom siv qib thiab cov qauv siv tau.

Cov yeeb nkab qhov ntev tsis tuaj yeem txiav txim siab tsuas yog los ntawm sab nraud txoj kab uas hla; ib qho yuav tsum tau txheeb xyuas qhov NPS/DN, sab nraud txoj kab uas hla, phab ntsa thickness, thiab cov yeeb nkab teem caij. Rau cov yeeb nkab steel hlau, qhov seem txheej txheem feem ntau hais txog ASME B36.19; ASTM A312 qhia meej meej tias nws tus qauv qhov ntev xa mus rau ASME B36.19, thaum tseem tso cai rau kev txiav txim ntawm qhov tsis yog - qhov loj me uas ua tau raws li lwm cov kev cai.

I. Daim Ntawv Qhia ntawm Cov Nominal Loj

Sab nraud txoj kab uas hla ib leeg tsis tas txhais cov yeeb nkab.

Piv txwv li, ob lub NPS 24 stainless hlau kav yuav muaj tib txoj kab uas hla sab nraud tab sis txawv phab ntsa thicknesses, qhov hnyav thiab lub peev xwm siab.

Qhov no yog vim li cas cov neeg yuav khoom yuav tsum tau qhia ob qho tib si nominal loj thiab phab ntsa thickness los yog lub sij hawm.

II. Feem ntau siv cov chav kawm phab ntsa thickness

Loj - txoj kab uas hla welded stainless hlau kav feem ntau siv nyias- cov qauv phab ntsa, nrog rau cov kev qhia tshwj xeeb tshaj plaws yogTeem sijhawm 5S, 10S, 40S, thiab 80S. Nws yog ib qho tseem ceeb kom nco ntsoov tias lub sij hawm ntsuam xyuas tsis sawv cev rau qhov tseeb phab ntsa; rau tib lub sij hawm ntsuam xyuas, qhov tseeb phab ntsa thickness nws txawv heev nyob ntawm tus Nominal Pipe Size (NPS). Yog li ntawd, ib tug yuav tsum txheeb xyuas qhov ntev ntawm tus qauv parameter lub rooj es tsis yog cia siab rau kev kwv yees lossis kev paub dhau los.

Cov ntaub ntawv qib yog ib qho kev txiav txim siab tseem ceeb tshaj plaws thaum qhia txog txoj kab uas hla loj stainless piping.

I . 304/304L Stainless Hlau Yeeb

304 stainless hlau yog qib ntau yam khoom siv, muab cov khoom zoo heev corrosion kuj thiab weldability; Nws yog tsim rau feem coob ntawm cov khoom siv thauj khoom siv hauv qhov kub thiab txias. Qhov qis -carbon 304L variant yog cov khoom siv rau cov kav loj - txoj kab uas hla welded; nws qhov qis- cov pa roj carbon zoo tiv thaiv kev nkag siab ntawm qhov kub thiab txias- thaj chaw cuam tshuam (HAZ) thiab tsis txhob cuam tshuam cov vuam tsis ua haujlwm, ua kom muaj kev ruaj ntseg ntawm cov yeeb nkab. Nws yog siv feem ntau hauv cov txheej txheem kev lag luam piping, dej thiab tso dej, thiab kev lag luam teeb pom kev zoo (xws li kev ua zaub mov) qhov twg corrosion mob me.

II. 316/316L Stainless Hlau Yeeb

Qhov txiaj ntsig tseem ceeb ntawm qhov no316 Loj Diameter Stainless Hlau Yeeb Nkabyog qhov sib ntxiv ntawm molybdenum. Piv nrog rau 304 series, nws muaj kev tiv thaiv zoo heev rau cov tshuaj chloride - ion thiab tshuaj lom neeg nruab nrab corrosion, ua rau nws cov khoom ntawm kev xaiv rau hnyav ib puag ncig xws li tshuaj ua cov nroj tsuag, thaj chaw ntug dej hiav txwv, thiab seawater desalination chaw. Hauv cov ntawv thov kev lag luam, qib qis - carbon 316L yog qhov zoo dua vim nws qhov tsim nyog rau kev vuam thiab kev ua haujlwm zoo dua rau kev cuam tshuam ntawm intergranular.

Nws yuav tsum raug sau tseg tias 316L yog kim dua 304L thiab tsis tas yuav tsum muaj rau txhua qhov xwm txheej; tus nqi ntxiv tsuas yog tsim nyog nyob rau hauv qhov chaw ua haujlwm uas muaj cov tshuaj chloride ions lossis acidic / alkaline chemical media.

III . 321 thiab 347 Stainless Hlau Yeeb Nkab

Cov no yog austenitic stainless hlau tsim los rau siab - kev pabcuam kub (xws li "H-qib" hloov cov ntaub ntawv hauv ASTM A312 tus qauv). Lawv muaj kev tiv thaiv zoo heev rau siab -kub creep thiab kev ntxhov siab tawg, nrog rau kev ua haujlwm rau rhiab heev-induced corrosion thaum lub sij hawm siab - vuam vuam. Lawv feem ntau haum rau siab - qhov kub thiab txias ua haujlwm, xws li kev tsim hluav taws xob thiab siab - txheej txheem kav dej, thiab tsis tsim nyog rau cov txheej txheem ambient- qhov kub thiab txias.

IV. Duplex Steel thiab High -Alloy Materials

Raws li siab- cov ntaub ntawv tshwj xeeb kawg, 2205/2507 duplex steels thiab 904L muaj lub zog siab thiab tshwj xeeb ua rau cov tshuaj chloride ions thiab cov kua qaub muaj zog. Lawv tsim nyog rau ib puag ncig hnyav heev, suav nrog cov chaw tawm ntug dej hiav txwv, sib sib zog nqus- roj thiab roj hauv hiav txwv, thiab tuav cov tshuaj lom neeg muaj zog heev. Vim lawv cov nqi siab heev, cov ntaub ntawv no poob rau sab nraud ntawm tus qauv loj - txoj kab uas hla cov yeeb nkab xaiv thiab tau tshwj tseg rau cov haujlwm tshwj xeeb, siab - kawg.

I. Vim li cas cov kav loj - txoj kab uas hla feem ntau welded?

Raws li cov yeeb nkab txoj kab uas hla nce, kev tsim seamless kav yuav exponentially nyuaj; loj- txoj kab uas hla seamless stainless hlau kav fim txwv tsis pub muaj peev xwm, lub sij hawm ntev txhuas, cov nqi yuav khoom siab heev, thiab cov kev txwv loj ntawm qhov loj me. Hauv qhov sib piv, cov kav dej welded- tsim los ntawm dov daim hlau thiab tsim cov welds longitudinal (siv cov txheej txheem EFW)- pab kom loj ntau lawm - txoj kab uas hla, ntev - ntev kav. Lawv muab ntau yam kev qhia tshwj xeeb thiab tus nqi zoo tshaj -kev ua tau zoo, ua rau lawv haum rau feem ntau ntawm cov kev lag luam kev lag luam thiab cov kev xaiv loj rau cov kav dej loj - txoj kab uas hla stainless hlau.

II. Thaum twg yog seamless yeeb nkab yuav tsum tau?

Lub seamless qauv yuav xav tau nyob rau hauv cov xwm txheej hauv qab no:

• Qee yam kev ua haujlwm siab -siab
• Engineering tsim specifications qhia meej meej mandate seamless yeeb nkab
• Kev txwv tshwj xeeb rau ib qhov project tshwj xeeb

Txawm li cas los xij, nws yuav tsum tau hais tias "welded" tsis sib npaug rau "tsis zoo." Cov yam tseem ceeb muaj xws li cov qauv tsim, vuam txheej txheem, kev kho cua sov, tsis yog- kuaj kev puas tsuaj, kev tswj qhov ntev, thiab cov kev ua haujlwm tshwj xeeb. Welded kav raws li ASTM A312 ua tau zoo heev nyob rau hauv ntau yam kev lag luam kev siv.

I. Tshuaj thiab Petrochemical Industries

Siv rau ntev - cov kav dej nyob deb thauj cov khoom siv tshuaj lom neeg, kua qaub thiab alkaline kua, thiab cov txheej txheem xov xwm; leveraging cov tshuaj tiv thaiv corrosion ntawm stainless hlau tiv thaiv pipeline corrosion thiab to, kom muaj kev ruaj ntseg thiab ruaj khov kev lag luam ntawm tshuaj ntau lawm.

II. Kev Kho Dej thiab Seawater Desalination

Kev xa dej hauv nroog thiab kev tso dej, kev kho dej khib nyiab, thiab cov dej hiav txwv desalination yuav tsum loj - txoj kab uas hla rau siab - ntim dej thauj; 316L stainless hlau yog tsim rau ib puag ncig nrog chloride -induced corrosion los ntawm seawater, ua rau nws yog ib qho tseem ceeb piping khoom rau cov dej ntug hiav txwv dej tej yaam num.

III. Roj, Roj, thiab LNG Industries

Siv nyob rau hauv cov roj thiab roj chaw nres tsheb, cov txheej txheem thauj cov kav dej, thiab cov kav dej cryogenic LNG; leveraging qhov qis-kub thiab corrosion-cov khoom tiv taus ntawm ntau qib stainless hlau tso cai rau cov kav dej no tuaj yeem tiv taus kev ua haujlwm nyuaj.

IV. Kev lag luam tsim hluav taws xob

Siv rau hauv lub tshuab fais fab cua txias, siab -kub txheej txheem piping, thiab tshuab thauj corrosive media; tshwj xeeb siab- cov qib kub xws li 321H thiab 347H ua tau raws li qhov xav tau ntawm kev ua haujlwm siab - kub thiab siab - kev ua haujlwm siab.