API 5L PSL2 Qib X80 yog tus qauv, muaj dav, thiab cov khoom siv tau zoo heev -qib cov khoom lag luam rau kev tsim Kauv Submerged Arc Welded (SSAW) steel kav. Qhov kev sib xyaw ua ke no sawv cev rau qhov zoo tshaj plaws ntawm kev lag luam muaj kab yeeb nkab thev naus laus zis, sib txuas cov qib siab tshaj plaws (X80) nrog rau qib PSL2 zoo tshaj plaws rau qhov xav tau tshaj plaws ntev - nrug, siab - cov roj thiab cov kav xa hluav taws xob, nrog rau arctic, offshore, thiab qaub cov kev pabcuam.
Lub npe "API 5L PSL2 Qib X80 Kauv Submerged Arc Yeeb Nkab" sib txuas cov kav dej siab tshaj plaws (X80) nrog qib hwm PSL2 zoo, tsim los siv cov txheej txheem kev lag luam welding rau qhov loj - txoj kab uas hla, lub hom phiaj - daim ntawv thov tseem ceeb uas qhov siab tshaj plaws lub zog - mus rau{8} lav, siab tshaj - rau{8} kev ntseeg tau yog qhov tseem ceeb.
📋 Cov ntsiab lus tseem ceeb rau API 5L PSL2 Qib X80 SSAW Yeeb Nkab
Cov lus hauv qab no qhia txog cov ntsiab lus tseem ceeb rau cov khoom no, raws li cov ntaub ntawv qhia kev lag luam.
| Yam ntxwv | Kev piav qhia |
|---|---|
| Txuj | API 5L: "Specification for Line Pipe" (raws li ISO 3183). |
| Khoom Specification Level | PSL2: Kev txhim kho qib zoo rau kab yeeb nkab, nrog cov kev cai nruj dua li PSL1, suav nroglub zog siab tshaj plaws, yuav tsum tau Charpy impact test, nruj chemistry tswj, thiabNDT ntxiv . |
| Qib Steel | X80 (L555): Cov qib khoom lag luam siab tshaj plaws hauv API 5L specification. Qhov kev xaiv "X80" qhia txog qhov tsawg kawg nkaus tawm lub zog ntawm80,000 psi (552 MPa). Feem ntau raug xaiv raws liX80Mrau cov khoom siv thermomechanically dov (TMCP) . |
| ISO npe | L555M(rau TMCP). |
| Kev tsim khoom | Spiral (Helical) Submerged Arc Vuam (SSAW/HSAW/SAWH): Ua los ntawm kub- dov steel coil, nrog cov vuam seam khiav tsis tu ncua nyob rau hauv ib tug kauv raws cov yeeb nkab ntev. Welded siv ob -sided tsis siv neeg submerged arc vuam nrog kev nkag mus rau tag nrho . |
| ** Tshuaj muaj pes tsawg leeg (max %) ** | Cov pa roj carbon (C): 0.10-0.12% max(qhov tseem ceeb qis dua PSL1) Silicon (Si):0.40-0.45% max Manganese (Mn):1.80-1.85% max Phosphorus (P): 0.020-0.025% max Sulfur (S): 0.010-0.015% max(rau kev pabcuam qaub, tuaj yeem tsawg dua lossis sib npaug li 0.004-0.010%) Microalloying:Nb, V, Ti nrog tag nrho Tsawg dua lossis sib npaug li 0.15% |
| Mechanical Properties | Yield zog: 552-690 MPa (80,000-100,000 psi)range - ob qho tib siyam tsawg kawg thiab siab kawgqhia Tensile zog: 621-827 MPa (90,000-120,000 psi)ntau Yield-rau-Tensile Ratio:Tsawg dua los yog sib npaug0.93siab kawg Charpy Impact: Yuav tsum tauntawm qhov ntsuas kub (feem ntau -20 degree, -30 degree, lossis -45℃rau cov haujlwm arctic) Impact Zog:Yam tsawg kawg 40-101 J nyob ntawm qhov kub thiab txias |
| Hom Loj Loj | Sab nraud txoj kab uas hla:219mm txog 4064mm (kwv yees . 8" rau 160") Phab ntsa Thickness:3.2mm txog 40mm (ntau ntau rau X80: 5-30mm) Ntev:3 m rau 18 m txheem; mus txog 50 m muaj rau cov ntawv thov tshwj xeeb |
| Cov Kev Ntsuas Tseem Ceeb | Yuav tsum tau Charpy Impact Testingntawm qhov ntsuas kub (piv txwv li, -20 degree, -45 degree) Kev Ntsuas Tensiletxheeb xyuas ob qho tib si yam tsawg kawg nkaus thiab siab kawg Tshuaj ntsuam xyuasnrog nruj PSL2 txwv tsis pub dhau (C Tsawg dua lossis sib npaug rau 0.12%, S Tsawg dua lossis sib npaug rau 0.015%) Flattening thiab Khoov Testrau weld kev ncaj ncees 100% Tsis yog -Kev kuaj kev puas tsuajntawm weld seam (UT / RT) - yuav tsum tau rau PSL2 Hydrostatic Testtxhua cov yeeb nkab ntawm Ntau dua lossis sib npaug rau 1.5 × tsim siab Kev kuaj Hardnessrau qib kev pabcuam qaub Kev xeem HIC/SSCrau kev pabcuam qaub rau NACE MR0175 |
| Cov ntawv thov siv | Ntev-ntaus deb siab-Natural gas kis pipelines; cov kav dej tob hauv ntug dej hiav txwv; Arctic thiab txias huab cua pipelines yuav tsum tau guaranteed qis- kub toughness ntawm -45℃; ultra-siab- siab roj crude kab kab; Cov ntawv thov kev pabcuam qaub thaum teev nrog cov kev xav tau NACE ntxiv; CO₂ thiab hydrogen thauj pipelines; txoj kab hla teb chaws loj (xws li Tuam Tshoj-Russia East Route). |
| Daim ntawv pov thawj | Mill Test Certificate rauEN 10204 Hom 3.1 lossis 3.2nrog tag nrho cov qhabnias xeem thiab cov ntaub ntawv traceability. API monogram muaj los ntawm cov ntawv tso cai mills. DNV, TÜV, BV, lossis ABS kev pom zoo muaj rau cov haujlwm tseem ceeb. |
📊 API 5L PSL2 Qib X80: Tshuaj thiab Mechanical Properties
Tshuaj muaj pes tsawg leeg
| Element | PSL2 Specification | PSL1 Sib piv |
|---|---|---|
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.10-0.12% | 0.26% (tseem ceeb nruj tswj) |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.80-1.85% | 1.85% (qhov sib xws) |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.020-0.025% | 0.030% (tsis suav) |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.010-0.015% | 50-67% txo los ntawm PSL1's 0.030% |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.40-0.45% | Tsis tau teev nyob rau hauv PSL1 |
| Microalloying | Nb, V, Ti (tag nrho Tsawg dua lossis sib npaug rau 0.15%) | Tsis tau teev nyob rau hauv PSL1 |
Mechanical Properties
| Khoom | PSL2 Kev Xav Tau | Qhov tseem ceeb |
|---|---|---|
| Yield zog | 552-690 MPa | Ob leeg yam tsawg kawg nkaus thiab siab tshaj tau teev tseg |
| Tensile zog | 621-827 MPa | Ob leeg yam tsawg kawg nkaus thiab siab tshaj tau teev tseg |
| Yield ratio (Y/T) | Tsawg dua los yog sib npaug0.93 | Xyuas kom txaus ductility |
| Impact Zog | Ntau tshaj lossis sib npaug rau 40-101J @ teev temp | Yuav tsum tau, tsis zoo li PSL1. Rau cov haujlwm tseem ceeb ntawm arctic, Ntau dua lossis sib npaug rau 80-100J ntawm -45℃yuav raug teev tseg |
📏 Dimensional Specifications
API 5L qhia txog cov kev kam rau ua hauv qab no rau SSAW kav:
| Parameter | Qhov Loj | Ua siab ntev |
|---|---|---|
| Sab nraud txoj kab uas hla | < 60.3 mm | -0.8 rau +0.4 mm |
| 60.3 hli mus rau 168.3 hli | ±0.0075D | |
| 168.3mm txog 610mm | ± 0.0075D (max ± 3.2 hli) | |
| 610mm txog 1422mm | ± 0.005D (max ± 4.0 hli) | |
| Phab ntsa Thickness | Txhua qhov ntau thiab tsawg | +15.0%, -12.5% |
| Kev ncaj | Txhua qhov ntau thiab tsawg | Tsawg dua lossis sib npaug li 0.1% ntawm tag nrho qhov ntev |
Standard Diameter Range:219mm txog 4064mm (8 "mus rau 160"). Rau X80 PSL2 SSAW, ntau qhov loj- txoj kab uas hla siv cov kav dej los ntawm 508mm (20 ") mus txog 1422mm (56").
📊 Qhov twg X80 haum ntawm API 5L PSL2 Qib
X80 yog qhov zoo tshaj plaws kev lag luam muaj zog xaiv rau cov kev xav tau tshaj plaws hauv cov kav dej, muab qhov zoo tshaj plaws lub zog zoo tshaj cov qib qis:
| Qib | Tawm tswv yim (min, MPa) | Tawm tswv yim (max, MPa) | Tensile (min, MPa) | Tus txheeb ze zog vs. X80 |
|---|---|---|---|---|
| B | 245 | 450 | 415 | -56% |
| X42 | 290 | 496 | 415 | -47% |
| X52 | 359 | 531 | 460 | -35% |
| X60 | 414 | 565 | 517 | -25% |
| X65 | 448 | 600 | 535 | -18% |
| X70 | 483 | 621 | 565 | -12% |
| X80 | 552 | 690 | 621 | Lub hauv paus |
🔍 Cov ntsiab lus tseem ceeb kom nkag siab
Dab tsi "PSL2 Qib X80" txhais tau tias: Qhov kev qhia tshwj xeeb no muab cov ultra- siab- lub zog X80 qib (552 MPa yam tsawg kawg nkaus tawm los) nrog cov kev xav tau zoo ntawm PSL2. Qhov tshwm sim yog ib lub yeeb nkab nrog552 MPa yam tsawg yield zoguas kuj ntaguaranteed tej yam toughness ntawm arctic kub, tsis tshua muaj nruj chemistry tswj (tshwj xeeb tshaj yog cov pa roj carbon tsawg dua los yog sib npaug rau 0.12% thiab sulfur Tsawg tshaj los yog sib npaug rau 0.015%), siab tshaj plaws lub zog txwv (Less tshaj los yog sib npaug rau 690 MPa), tag nrho traceability, thiab ntau stringent xeem. .
Vim li cas thiaj xaiv PSL2 Qib X80?PSL2 Qib X80 tau teev tseg rau lub ntiaj teb cov kav dej loj tshaj plaws thaum:
Lub zog siab tshaj plaws - rau - qhov hnyav piv yog xav tau rau ultra- siab ua haujlwm siab
Ntev - kis tau tus mob yuav tsum tau optimized phab ntsa thickness thiab siab tshaj cov khoom txuag
Arctic thiab huab cua txias kev pabcuam yuav tsum tau lav qhov cuam tshuam ntawm -45 degree
Qhov project specifications mandate PSL2 zoo (ib qho rau cov kab loj loj)
Txhim kho cov ntaub ntawv thiab traceability yog xav tau los ntawm cov lis dej num thoob ntiaj teb
Kev pabcuam qaub yuav tsum muaj cov ntsiab lus tsis tshua muaj leej faj (tsawg dua lossis sib npaug rau 0.002% rau kev ua raws NACE)
Offshore thiab deepwater daim ntaub ntawv xav tau superior toughness
X80 vs. Qib qis: X80 muab kwv yees li14% siab tshaj tawm lub zog tshaj X70(552 MPa vs . 485 MPa),33% siab dua X60(552 MPa vs . 414 MPa), thiab125% siab dua Qib B(552 MPa vs . 245 MPa), ua rau nws yog qhov kev xaiv zoo tshaj plaws rau ultra- siab- cov kab sib txuas uas cov qib qis yuav xav tau cov phab ntsa tuab heev.
Kev kho cua sov tsim: X80 PSL2 rau SSAW kav yog feem ntau ua nrogX80M(Thermomechanically dov / TMCP) rau kev txhim kho toughness thiab weldability, txawm tias X80Q (Quenched thiab tempered) tej zaum yuav raug teev rau cov ntawv tshwj xeeb.
Sour Service Option: Rau H₂S- muaj ib puag ncig, qhia meejX80 nrog NACE ua rawsthiab cov kev xav tau ntxiv nrog rau cov ntsiab lus sulfur siab tshaj plawsTsawg dua lossis sib npaug li 0.002%, Kev sim hardness (tsawg dua los yog sib npaug rau 248 HV10), thiab HIC/SSC xeem ib NACE MR0175/ISO 15156 .
SSAW Qhov Zoo rau X80 PSL2: Cov txheej txheem kauv vuam muaj cov txiaj ntsig tshwj xeeb rau cov kav loj - txoj kab uas hla, ultra- siab - cov kav dej muaj zog:
Loj Loj Muaj peev xwm: Kev lag luam tuaj yeem tsim cov kav dej mus txog 160 "txoj kab uas hla - SSAW yog tib txoj kev uas tuaj yeem tsim cov kab ntau dua 56" rau X80 PSL2
Nqi Efficiency: 20-30% tus nqi qis dua LSAW rau cov kab loj loj
Ntev ntev: Txog li 50m ntev txo qhov kev xav tau ntawm kev vuam mus txog 40%
Kev Nyuaj Siab Distribution: 50-70℃kauv weld seam lub kaum sab xis tsim ua rau muaj kev ntxhov siab 30% qis dua cov yeeb nkab ncaj seam, ua rau nws tsim nyog rau kev sib kis siab
Kev siv cov khoom siv: 15-20% cov khoom siv ntau dua piv rau cov hlua ncaj nraim welded yeeb nkab
📝 PSL2 vs. PSL1 Sib piv rau X80 SSAW Yeeb Nkab
Cov lus hauv qab no qhia txog qhov sib txawv tseem ceeb ntawm PSL1 thiab PSL2 rau X80, qhia tias vim li cas PSL2 yog qhov kev xaiv zoo tshaj plaws rau ntiaj teb-cov haujlwm hauv chav kawm:
| Feature | PSL1 Qib X80 | PSL2 Qib X80 | Qhov tseem ceeb |
|---|---|---|---|
| Cov pa roj carbon (C) max | 0.26% | 0.10-0.12% | 54% txo- zoo dua weldability, qis HAZ hardness, txhim kho toughness |
| Sulfur (S) max | 0.030% | 0.010-0.015% | 50-67% txo- tseem ceeb rau toughness thiab HIC kuj |
| Phosphorus (P) max | 0.030% | 0.020-0.025% | Txhim kho toughness thiab weldability |
| Yield zog | 552 MPa min xwb | 552-690 MPa ntau | Tiv thaiv tshaj - cov ntaub ntawv muaj zog uas tuaj yeem ua rau muaj teeb meem vuam |
| Tensile zog | 621 MPa min xwb | 621-827 MPa ntau | Xyuas kom zoo ib yam mechanical zog |
| Yield ratio (Y/T) | Tsis tau teev tseg | Tsawg dua lossis sib npaug li 0.93 | Xyuas kom txaus ductility |
| Kev ntsuam xyuas cuam tshuam | Tsis xav tau | Yuav tsum tau(40-101J @ teev temp) | Guarantee qis -kub toughness rau arctic/offshore |
| NDT Scope | Txuj | Kev dav dav, kev lees txais nruj dua | Kev kuaj pom zoo dua |
| Traceability | Batch qib | Pipe -los ntawm- yeeb nkab puv traceability | Ua kom tiav cov ntaub ntawv zoo |
| Daim ntawv pov thawj | xaiv tau | EN 10204 3.1/3.2 yuav tsum tau | Thib peb -kev pov thawj ntawm tog muaj |
| Zoo tshaj rau | General ultra-siab- kev pabcuam siab uas tsis tas yuav tsum muaj kev kuaj xyuas | Kev pabcuam tseemceeb, ntev-kab kab hauv kab, arctic, offshore, qaub pabcuam, tswj kav kav dej |
🔧 Kev Tsim Kho Txheej Txheem rau API 5L PSL2 Qib X80 SSAW Yeeb Nkab
Cov txheej txheem tsim ua raws li kev txhim kho PSL2 kev tswj hwm zoo nrog rau kev sim thiab cov ntaub ntawv ntxiv, suav nrog TMCP thev naus laus zis:
Kev npaj raw khoom: Kub-rolled steel coils raws li PSL2 chemistry yuav tsum tau (tshwj xeeb tshaj yog carbon Tsawg dua los yog sib npaug rau 0.12% thiab sulfur Tsawg dua los yog sib npaug rau 0.015%) yog leveled, soj ntsuam, thiab ntug-milled. Txhua kauj yog txheeb xyuas kom muaj kev sib tw tag nrho.
Kauv txoj kev: Cov hlau sawb txuas ntxiv tsim rau hauv cov duab cylindrical ntawm lub kaum ntse ntse tshwj xeeb (feem ntau 50-70 degree) ntawm chav tsev kub.
Submerged Arc Vuam: Ob chav -sided tsis siv neeg submerged arc vuam (sab hauv thiab sab nraud) tsim cov kauv seam nrog kev nkag mus tag nrho. Cov txheej txheem vuam yog tsim nyog raws li PSL2 qhov yuav tsum tau nrog kev tswj xyuas nruj.
Tsis yog -Kev kuaj kev puas tsuaj: 100% ultrasonic (UT) thiab radiographic (RT) tshuaj xyuasntawm tag nrho cov vuam ntev nrog PSL2 kev lees paub. Cov chaw niaj hnub no siv cov tshuab UT txuas mus ntxiv thiab X-ray (TVRT) nrog 100% kev pab them nqi.
Kev Ntsuas Hydrostatic: Txhua cov yeeb nkab ib leeg raug kuaj xyuas kom ntseeg tau tias muaj kev ntseeg siab ntawmNtau tshaj lossis sib npaug rau 1.5 × tsim siab; cov ntsuas ntsuas tau tswj tau thiab kaw nrog lub siab - lub sijhawm kab kos .
Mechanical Testing: Kev ntsuam xyuas tensile (tshuaj xyuas ob qho tib si min thiab max txwv), flattening tests, khoov xeem, thiabyuav tsum tau Charpy impact testntawm lub hauv paus hlau, vuam, thiab HAZ ntawm qhov ntsuas kub (piv txwv li, -20 degree, -45 degree).
Xaus Xaus: Xaus npaj (dawb lossis beveled ib ASME B16.25) rau kev vuam; kawg lub ntsej muag perpendicularity tswj; weld seam reinforcement txwv kom tsawg dua lossis sib npaug li 3.2 hli.
Txheej: Cov txheej txheem sab nraud (3LPE, FBE, 3LPP, thee tar epoxy) thiab cov ntaub ntawv sab hauv muaj rau kev tiv thaiv corrosion.
🏭 Major Project Applications
API 5L PSL2 Qib X80 SSAW kav yog siv nyob rau hauv lub ntiaj teb no qhov tseem ceeb tshaj plaws pipeline infrastructure tej yaam num:
| Qhov project | Daim ntawv thov | Specifications |
|---|---|---|
| Tuam Tshoj-Russia East Route (中俄东线) | Hla - ciam teb kis tau tus mob nyob rau hauv huab cua txias heev | D1422mm, X80M PSL2, cuam tshuam kev ntsuas ntawm -45 degree |
| Loj Hla -Lub teb chaws Trunk Kab | Ntev - kis tau tus mob yuav tsum muaj zog tshaj plaws | X80M PSL2, TMCP steel, 3LPE coated |
| Arctic Pipelines | Gas kis tau tus mob nyob rau hauv tsis tshua muaj -kub ib puag ncig | X80M PSL2, kev ntsuam xyuas cuam tshuam ntawm -45 degree, lav qhov kub thiab txias toughness |
| Offshore Pipelines | Deepwater subsea hydrocarbon thauj | X80 PSL2 nrog DWTT, CTOD kuaj, pob zeb hnyav txheej |
| Sour Service Applications | H₂S-muaj ib puag ncig uas yuav tsum tau ua raws NACE | X80 PSL2 nrog NACE MR0175, HIC/SSC kuaj, sulfur Tsawg dua lossis sib npaug rau 0.002% |
🛡️ Txheej Options rau Corrosion Protection
API 5L PSL2 X80 kauv kav yuav muab tau nrog ntau yam txheej nyob ntawm daim ntawv thov ib puag ncig:
| Txheej hom | Zoo tshaj rau | Ntsiab nta | Hom Thickness |
|---|---|---|---|
| 3LPE (3-txheej polyethylene) | Ntev - faus cov kav dej | Kev tiv thaiv corrosion zoo heev, muaj kev cuam tshuam zoo, adhesion zoo | 2.5-3.7 hli |
| FBE (Fusion Bonded Epoxy) | Roj & roj pipelines | Muaj zog adhesion, tshuaj tiv thaiv, du nto | 300-600 μm |
| 3LPP (3-txheej polypropylene) | Offshore pipelines, siab -kev pabcuam kub | Kub kub tsis kam (txog 140 degree), zoo heev mechanical zog | 2.5-3.7 hli |
| Dual Txheej FBE (FBE-ARO) | Abrasive ib puag ncig, directional drilling | Txhim khu kev cuam tshuam thiab abrasion tsis kam | 400-800 μm |
| Pob zeb hnyav txheej (CWC) | Offshore / subsea pipelines | Tsis zoo buoyancy thiab mechanical tiv thaiv | 25-150 hli |
| Internal Epoxy txheej | Corrosive media | Txo kev sib txhuam, tiv thaiv corrosion, txhim kho kev khiav hauj lwm | 250-500 μm |
📝 Cov ntsiab lus tseem ceeb
Thaum xaiv PSL2 Qib X80 :
Ultra-siab-siab ntev- kis tau tus mob (tus qauv rau cov kab loj loj)
Arctic thiab huab cua txias kev pabcuam yuav tsum tau lav qhov cuam tshuam ntawm -45 degree
Kev pabcuam qaub (H₂S ib puag ncig yuav tsum tau NACE MR0175 / ISO 15156 nrog S Tsawg dua lossis sib npaug li 0.002%)
Offshore thiab dej tob siv
Kev ua raws cai (FERC, DOT, FEMSA kab, EU PED)
Tej yaam num uas yuav tsum tau toughness (DWTT, CTOD)
Hla -cov kab hauv lub teb chaws xav tau daim ntawv pov thawj thib peb - tog (DNV, TÜV, BV)
CO₂ thiab daim ntawv thov thauj hydrogen xav tau ultra{0}}siab ncaj ncees
International sib npaug: X80 PSL2 muaj ntau qhov sib npaug thoob ntiaj teb:
ISO 3183 L555ME(TMCP) lubl555 qw(quenched & tempered)
GB/T 9711 L555M PSL2
CSA Z245.1 Qib 550
Kev kho cua sov tsim: X80 PSL2 rau SSAW feem ntau yogX80M(TMCP) rau kev txhim kho toughness thiab weldability. Lub npe "M" qhia txog cov khoom siv thermomechanically dov.
Ua kom tiav Specification: Thaum xaj, qhia meej:
API 5L PSL2, Qib X80M, SSAW (spiral welded), Loj (OD x WT), Ntev, Xaus Xaus
Impact Test kub: -20 degree, -30 degree, -45 degree]
Impact Energy Requirement: [eg, 40J, 80J, 100J yam tsawg kawg nkaus]
Kev kho cua sov: M (TMCP - yuav tsum tau rau X80 SSAW)
Txhua qhov kev xav tau ntxiv (kev pabcuam qaub nrog HIC / SSC kuaj, DWTT, CTOD)
Cov txheej txheem txheej: [piv txwv li, 3LPE, FBE] nrog thickness specifications
Daim ntawv pov thawj: EN 10204 Hom 3.1 lossis 3.2 nrog cov neeg tim khawv thib peb (SGS, BV, TÜV, DNV)
Qhov project-kev tso cai tshwj xeeb raws li xav tau
📝 Cov ntsiab lus
API 5L PSL2 Qib X80 Kauv Submerged Arc Welded kavyog covhwm, ntiaj teb no-chav xaiv xaiv rau qhov xav tau tshaj plaws ultra-siab- kev siv cov kav dej siab. Nrog yam tsawg kawg nkaus tawm lub zog ntawm552 MPa (80,000 psi)- kwv yees li14% siab dua X70thiab125% siab dua Qib B- Cov kav dej no sawv cev rau qhov kawg ntawm kev lag luam muaj cov kav dej siv thev naus laus zis. Lawv muab cov ultra- siab- lub zog ntawm X80 nrog cov yam ntxwv zoo ntawm PSL2:guaranteed Charpy tej yam toughness ntawm arctic kub (tsawg li -45 degree), nruj heev chemistry tswj (tshwj xeeb tshaj yog carbon Tsawg dua los yog sib npaug rau 0.12% thiab sulfur Tsawg dua los yog sib npaug rau 0.015%), siab tshaj plaws lub zog txwv (tsawg dua los yog sib npaug rau 690 MPa), tag nrho traceability, thiab ntau stringent xeem. .
Muaj nyob rau hauv diameters los ntawm219mm txog 4000mmnrog phab ntsa thicknesses rau40 hlithiab ntev mus txog50m, cov kav dej no yog tsim los siv tus nqi -kev tsim cov txheej txheem SSAW zoo nrog TMCP thev naus laus zis thaum ua tau raws li qhov xav tau nruj ntawm API 5L specification .
PSL2 Qib X80 yog qhov kev qhia tshwj xeeb rau:
Ultra-siab-siab ntev- kis tau tus mob(xws li Tuam Tshoj-Russia East Route)
Arctic thiab txias huab cua pipelinesyuav tsum muaj kev ntsuam xyuas ntawm -45 degree
Offshore thiab dej tob sivnrog kev tswj hwm tshuaj nruj thiab DWTT cov cai
Kev tswj kav kav dej(FERC, DOT, FEMSA) qhov twg PSL2 yuav tsum tau ua
Cov kev pabcuam qaubthaum tau teev tseg nrog NACE cov cai ntxiv
CO₂ thiab daim ntawv thov thauj hydrogenxav tau ultra-siab ncaj ncees
Hla - lub teb chaws kab kabYuav tsum muaj daim ntawv pov thawj thib peb (DNV, TÜV, BV)
Thaum txiav txim, xyuas kom meej koj qhiaAPI 5L PSL2 Qib X80M, SSAW, nrog rau qhov yuav tsum tau muaj, qhov ntsuas kub ntawm qhov ntsuas kub (feem ntau yog -20℃txog -45℃rau cov haujlwm tseem ceeb), kev xaiv kho cua sov (M rau TMCP), thiab cov txheej txheem los yog ntxiv raws li koj daim ntawv thov tshwj xeeb. Rau cov phiaj xwm thoob ntiaj teb cov kav dej, xav txog kev qhia meejDNV Hom Kev Pom Zoo, EN 10204 3.2 ntawv pov thawj, thiab thib peb -kev soj ntsuamlos xyuas kom meej tag nrho ua raws li cov qauv thoob ntiaj teb.
