API 5L X52 Electric Resistance Welded (ERW) yeeb nkab
Lub ntsiab lus tseem ceeb
Standard specification rauhluav taws xob kuj welded steel kab yeeb nkabhauv qabAPI 5Lspecification.Qib X 52yog anruab nrab - zog pipeline steeldav siv nyob rau hauv cov roj thiab roj kis tau tus mob, nrog ib tug yam tsawg kawg nkaus yield zog ntawm52,000 psi (360 MPa) .
Lub npe piav qhia
| Ib feem | Lub ntsiab lus |
|---|---|
| API | Lub koom haum American Petroleum |
| 5L | Specification rau kab yeeb nkab |
| X52 | Qib npe –X= qib pipeline,52= Yam tsawg kawg nkaus tawm lub zog hauv ksi (52,000 psi) |
| Hluav taws xob Resistance Welded | Cov txheej txheem tsim khoom - cov yeeb nkab tsim los ntawm coil thiab welded longitudinally |
Cov yam ntxwv tseem ceeb ntawm X52 ERW Yeeb Nkab
| Feature | Kev piav qhia |
|---|---|
| Hom khoom | Carbon Steel(micro{0}} alloyed) |
| Kev tsim khoom | Hluav taws xob Resistance Welded (ERW)- longitudinal weld seam tam sim no |
| Khoom Specification Levels | PSL1los yogPSL2(PSL2 muaj nruj dua chemistry, yuav tsum tau kuaj qhov cuam tshuam) |
| Cov khoom tseem ceeb | Zoo heev tshuav ntawmlub zog, weldability, thiab kev lag luam |
| Hom kab | 21.3mm txog 660mm(1/2 "mus rau 26") - ERW |
| Hom Phab Ntsa Thickness | 1.8mm txog 22.2mm |
** Chemical Composition (Maximum %) **
| Lub ntsiab | PSL1 | PSL2 |
|---|---|---|
| Cov pa roj carbon (C) | 0.28 | 0.24 |
| Manganese (Mn) | 1.40 | 1.40 |
| Phosphorus (P) | 0.030 | 0.025 |
| Sulfur (S) | 0.030 | 0.015 |
| Vanadium (V) | 0.10 max | 0.10 max |
| Niobium (Nb) | 0.05 max | 0.05 max |
| Titanium (Ti) | 0.04 max | 0.04 max |
Nco tseg: PSL2 muaj kev tswj hwm nruj dua ntawm cov pa roj carbon, phosphorus, thiab sulfur kom txhim kho weldability thiab toughness.
Mechanical Properties
| Khoom | PSL1 | PSL2 |
|---|---|---|
| Yield zog (Min) | 360 MPa (52,200 psi) | 360 MPa (52,200 psi) |
| Yield zog (Max) | Tsis tau teev tseg | 530 MPa (76,900 psi) |
| Tensile zog (Min) | 460 MPa (66,700 psi) | 460 MPa (66,700 psi) |
| Tensile zog (Max) | Tsis tau teev tseg | 760 MPa (110,200 psi) |
| Yield-rau-Tensile Ratio | Tsis tau teev tseg | 0.93 max |
Cov lus sib piv: X52 vs
| Qib | Yield zog Min (MPa/ksi) | Tensile zog Min (MPa/ksi) | Daim ntawv thov |
|---|---|---|---|
| B | 240 / 35 | 415 / 60 | Tsawg-kev sib sau ua ke |
| X42 | 290 / 42 | 415 / 60 | Nruab nrab -siab kis |
| X46 | 320 / 46 | 435 / 63 | Kev siv nruab nrab |
| X52 | 360 / 52 | 460 / 67 | Txheem rau kev sib kis |
| X56 | 390 / 56 | 490 / 71 | Siab dua - kab siab |
| X60 | 415 / 60 | 520 / 75 | High -siab kis |
| X65 | 450 / 65 | 535 / 77 | Kev pabcuam tseem ceeb, offshore |
Cov ntawv thov siv
Roj thiab roj xa mus kav
Natural gas sib sau ua ke thiab faib kab
Nruab nrab mus rau siab - kev thauj mus los ntawm cov kua dej
Petrochemical cog piping
Kev thauj dej thiab slurry
Cov kev pabcuam qaub(thaum teev tseg raws li PSL2 nrog kev sim ntxiv)
Siab -kub kab kab
Cov qauv siv(furniture, tsev, choj, mechanical)
ERW Manufacturing txheej txheem
ERW kav dej yog tsim los ntawm:
Kev tsim:Hlau kauj yog txias- ua rau hauv ib lub cylindrical zoo.
Vuam:Cov npoo yog rhuab los ntawmsiab - zaus hluav taws xob tsis kamthiab forged ua ke nyob rau hauv siab.
Kev kho cua sov:Lub weld seam yog normalized los ua kom zoo zoo grain qauv.
NDT:Weld seam yog100% tsis yog- kuaj kev puas tsuaj(ultrasonic los yog eddy tam sim no).
Qhov zoo:
Tus nqi qis duatshaj seamless yeeb nkab
Zoo heev qhov tseeb(Qhov tseeb OD thiab phab ntsa thickness)
Ntev ntevmuaj (txog 18m)
High efficiency ntau lawm
Tshawb nrhiav:Ib txoj kev tshawb fawb sib piv xyoo 2024 pom tias Charpy cuam tshuam qhov tseem ceeb ntawm seamless yeeb nkab feem ntau siab dua ERW yeeb nkab vim metallurgical yam xws li grain loj, tsis yog -hlau inclusions, delaminations, thiab microstructures .
PSL1 vs PSL2 rau X52
| Yam | PSL1 | PSL2 |
|---|---|---|
| Chemistry | Txheem txwv | Kev tswj nruj dua(qis C, P, S) |
| Lub zog | Min tsuas qhia | Min thiab Maxtau teev tseg (tiv thaiv tshaj -lub zog) |
| Kev ntsuam xyuas cuam tshuam | Tsis xav tau | Yuav tsum tau(qhov kub thiab txias) |
| Yield-rau-Tensile Ratio | Tsis xav tau | 0.93 max |
| Carbon sib npaug | Tsis xav tau | Muab xam thiab tswj |
| Kev siv yam | Kev pabcuam dav dav | Kev pabcuam tseem ceeb, kev pabcuam qaub, qis kub |
Txheej & Kev Tiv Thaiv Kev Xaiv
X52 ERW yeeb nkab feem ntau muab nrog:
Dub(Pob zeb tiav)
3LPE (3-txheej polyethylene)- feem ntau tshwm sim rau cov kav dej faus
FBE (Fusion Bonded Epoxy)
Coal Tar Epoxy
Galvanized(tsawg dua rau daim ntawv thov pipeline)
Varnish txheejlos yoganti- xeb roj
International Standard Equivalents
| Txuj | Qib sib npaug |
|---|---|
| API 5L | X52 |
| TS EN ISO 3183 | L360 |
| DNV OS{0}}F101 | Qib 360/450 |
| CSA Z245 | Qib 360 |
| GB/T 9711 | L360 |
| TS EN 10208-2 | L360 MB |
Qhov Loj Muaj
| Txoj kev tsim khoom | Qhov Loj |
|---|---|
| ERW / HFW | 21.3mm txog 660mm (1/2 "mus rau 26") |
| Seamless | 1 "mus rau 14" (rau kev sib piv) |
| LSAW / DSAW | 12 "mus rau 56" (rau kev sib piv) |
* Ceeb Toom: ERW yog txoj kev tseem ceeb rau X52 hauv qhov ntau thiab tsawg mus txog 24-26". Tshaj qhov no, LSAW lossis seamless yuav raug teev.*
Fabrication & Weldability
Weldability zoo heevvim tswj chemistry thiab qis carbon sib npaug.
Field welding:Cov txheej txheem txheej txheem siv; PSL2 cov ntaub ntawv yuav xav tau cov txheej txheem tsim nyog.
Tsis muaj preheatfeem ntau yuav tsum tau rau tej phab ntsa thicknesses.
Khoov:Yuav ua tau txias- teb khoov tsis pub dhau qhov txwv.
Kev kuaj:Hydrostatic xeem, flattening xeem, khoov kuaj, cuam tshuam kuaj raws li xav tau.
Kev Lag Luam Lub Luag Haujlwm & Kev Xaiv Logic
X52 yog "tus qauv" rau nruab nrab - roj thiab roj xa mus:
| Qib Siab | Qib | Kev siv yam |
|---|---|---|
| Tsawg | A, B | Tsawg-siab, tsis yog- tseem ceeb |
| Nruab nrab | X42, X46 | General kis tau tus mob |
| Txuj | X52 | Feem ntau siv rau cov kab sib kis |
| Siab | X60, X65 | Siab -siab, ntev-ntaus deb |
| Ultra -High | X70, X80 | Dej tob, arctic, siab -efficiency |
Thaum xaiv X52:
Nruab nrab mus rau siab - siab kis (kev khiav hauj lwm siab)
Thaum lub zog siab dua X42 / X46 xav tau yam tsis tau txav mus rau X60
Feem ntau cov lus qhia rau cov raj xa hluav taws xob
Dav muaj los ntawm ntau manufacturers
Tus nqi -zoo tshuav ntawm lub zog thiab cov nqi khoom
Daim ntawv pov thawj & Kev Xeem
Mill Test Certificate:EN 10204/3.1B feem ntau muab
Kev tshuaj xyuas thib peb:SGS, BV, Lloyds feem ntau lees txais
Cov kev xeem tau ua:
Tshuaj ntsuam xyuas
Mechanical zog (tensile, yield, elongation)
Kev ntsuam xyuas
Khoov xeem
Impact test (rau PSL2)
Hydrostatic xeem
X-ray lossis ultrasonic kuaj
Thaum kawg Takeaway: API 5L X52 ERW Tubeyog covkev lag luam tus qauv rau nruab nrab -lub zog welded kab yeeb nkabhauv kev siv roj thiab roj. Nws muaj ibpov thawj sib npaug ntawm lub zog, weldability, thiab tus nqi -effectivenessrau siab thiab tej yam kev mob uas tshaj X42 muaj peev xwm. Muaj nyob rau hauv ob qho tib si PSL1 thiab PSL2 qib zoo, nws yog qib feem ntau teev rau cov raj xa dej thiab nruab nrab -siab hydrocarbon kis tau tus mob thoob ntiaj teb.
