A139 Carbon Steel Pipe yog dab tsi?
ASTM A139 Cov khoom lag luamyog tus qauv specification rauhluav taws xob - fusion (arc) welded steel yeeb nkabhauv qhov ntau thiab tsawg NPS 4 (DN 100) thiab loj dua. Cov yam ntxwv tseem ceeb ntawm cov yeeb nkab no yog tias nws tau tsim tshwj xeeb rauwelding thiab dabtsi yog khoov siv, ua rau nws yog ib qho kev xaiv nrov rau cov kav dej hauv kev thauj mus los.
Lub npe "A139" txhais tau hais tias nws yog tswj hwm los ntawm cov qauv tsim los ntawm ASTM International, kom ntseeg tau cov khoom siv zoo ib yam, qhov ntev, thiab kev ua haujlwm.
Cov yam ntxwv tseem ceeb thiab kev tsim khoom
Kev tsim khoom:Cov yeeb nkab yog tsim los ntawm covhluav taws xob - fusion vuam txheej txheem. Lub phaj hlau los yog daim ntawv yog tsim rau hauv cov duab cylindrical thiab cov seam yog welded ib txhij los ntawm ob sab hauv thiab sab nraud siv qhov tsis siv neeg arc - vuam txheej txheem. Qhov no tsim kom muaj zog, nruam weld.
Kev Siv Tseem Ceeb:Nws yog tshwj xeeb tsim rausiab - kev pabcuam siabhauvdej, roj, thiab roj kis kab, nrog rau lwm cov tshuab pressurized.
Qib:Tus txheej txheem npog ntau qib raws li qhov tsawg kawg nkaus tawm lub zog ntawm cov hlau:
Qib A:30,000 psi (205 MPa) min yield zog
Qib B:35,000 psi (240 MPa) min yield zog
Qib C:42,000 psi (290 MPa) min yield zog
Qib D:46,000 psi (315 MPa) min yield zog
Qib E:52,000 psi (360 MPa) min yield zog
Qhov zoo ntawm A139 Pipe
Weldability zoo heev:Raws li lub npe implies, nws yog tsim rau welding. Nws cov tshuaj muaj pes tsawg leeg thiab cov txheej txheem tsim khoom ua rau nws yooj yim rau kev koom nrog hauv kev siv cov txheej txheem vuam txheej txheem, uas yog qhov tseem ceeb rau ntev - cov kav xa dej.
Zoo Bendability:Nws yog tsim los tsim thiab khoov yam tsis muaj qhov tsis ua haujlwm, tso cai rau nws mus rau ib puag ncig obstacles thiab ua raws li cov contours ntawm thaj av thaum lub sij hawm tsim cov kav dej.
Tus nqi -Zoo rau cov kab loj:Rau cov kav loj - txoj kab uas hla, hluav taws xob- txheej txheem fusion welded feem ntau yog kev lag luam ntau dua li seamless lossis lwm txoj kev welded.
High Pressure Capability:Cov qib uas tau teev tseg muab ntau yam kev xaiv lub zog haum rau ntau yam kev xav tau siab.
Cov ntawv thov siv
A139 yeeb nkab yog feem ntau siv hauv kev tsim kho ntawmloj -scale, hla- lub teb chaws pipelinesthiab loj faib systems.
Kev xa dej Mains:Rau cov dej num hauv nroog thiab kev faib khoom.
Roj thiab Gas Pipelines:Rau kev sib sau thiab thauj cov roj av, roj av, thiab cov khoom ua kom zoo.
Slurry Kab:Rau kev thauj khoom sib tov ntawm cov dej thiab cov khoom siv (piv txwv li, hauv mining).
Industrial Piping:Rau cov txheej txheem kab hauv cov chaw tsim hluav taws xob, cov nroj tsuag tshuaj, thiab lwm qhov chaw muaj kev lag luam uas muaj kev kub siab thiab weldability yog qhov tseem ceeb.
Kev sib piv nrog lwm cov qauv yeeb nkab
Nws muaj txiaj ntsig kom nkag siab tias A139 piv rau lwm yam zoo sib xws - saib cov lus qhia tshwj xeeb.
| Feature | ASTM A139 Cov khoom lag luam | ASTM A53 | ASTM A106 1 | API 5L |
|---|---|---|---|---|
| Lub Npe | Hluav taws xob{0}} Fusion Welded Steel Pipe | Welded & Seamless steel yeeb nkab | Seamless Carbon Steel Yeeb Nkab rau siab -Kev Pabcuam Kub | Kab Yeeb |
| Cov txheej txheem tseem ceeb | Hluav taws xob{0}}Fusion Welded (EFW) | ERW (Hom E) & Seamless (Hom S) | Seamless | Seamless, ERW, SAW, thiab lwm yam. |
| Daim ntawv thov tseem ceeb | Vuam & dabtsi yog khoov rau cov kav dej | Lub hom phiaj dav dav, Tsawg-Npaum | Siab -Kev Pabcuam Kub (piv txwv li, chav dej) | Roj & Roj kis tau tus mob |
| Siv dav | Dej, roj, roj xa hluav taws xob | Cov qauv tsim, laj kab, qis-Tswj kav dej | Boiler Tubes, Superheaters, Txheej Txheem Piping | Hla -Lub Tebchaws Roj & Roj Pipelines |
| Qhov tseem ceeb | Ua tshwj xeeb rau thaj chaw vuam & dabtsi yog khoov | Ntau dua - lub hom phiaj | Tuav qhov kub thiab txias | Lub ntiaj teb no tus qauv rau lub zog pipelines |
Key Takeaway:ThaumA139thiabAPI 5Lyog ob qho tib si siv rau cov kav dej, API 5L yog qhov kev lees paub ntau dua thoob ntiaj teb thiab cov qauv nruj rau kev lag luam roj thiab roj. A139 feem ntau nyiam rau cov haujlwm tshwj xeeb, tshwj xeeb tshaj yog nyob rau hauv cov dej, qhov twg nws txoj kev khoov thiab weldability yog qhov tseem ceeb.
Kev txiav txim siab tseem ceeb
Xaus:A139 yeeb nkab tuaj yeem muab tau nrog qhov kawg, beveled xaus (rau vuam), lossis grooved kawg (rau cov khoom siv sib txuas).
Txheej & Txheej:Rau kev tiv thaiv corrosion, nws yuav luag ib txwm coated sab nraud (xws li, nrog fusion-bonded epoxy los yog asphalt) thiab feem ntau lined sab hauv (xws li, nrog cement mortar lossis epoxy) rau kev pabcuam dej.
Specification:Ib txwm xa mus rau tag nrhoASTM A139 / A139Mtus qauv rau cov txheej txheem ua tiav, suav nrog tshuaj lom neeg muaj pes tsawg leeg, cov khoom siv kho tshuab, kuaj, thiab tshuaj xyuas.
Cov ntsiab lus
A139 Carbon Steel Yeeb Nkabyog asiab -lub zog, welded yeeb nkabtsim los ntawm hauv av mus rau kev tsim loj - txoj kab uas hla uas yuav tsum tau davteb welding thiab khoov. Nws lub hom phiaj tseem ceeb yog nyob rau hauvKev xa dej thiab kev xa tawm, txawm hais tias nws kuj tseem siv rau hauv cov haujlwm roj thiab roj. Thaum koj pom - txoj kab loj loj tau teeb tsa thoob plaws lub teb chaws, muaj lub caij nyoog zoo nws tuaj yeem yog A139 yeeb nkab.
