API 5L PSL2 Qib X65 yog tus qauv, muaj dav, thiab feem ntau tau teev hwm tus nqi- qib khoom rau kev tsim Kauv Submerged Arc Welded (SSAW) steel kav. Qhov kev sib xyaw ua ke no yog muab los ntawm ntau lub tuam txhab thoob ntiaj teb rau siab - cov roj thiab cov pa xa hluav taws xob, cov kav dej tawm sab nrauv, thiab lwm yam kev siv tseem ceeb uas yuav tsum tau ua kom zoo dua qub thiab ua haujlwm tau zoo.
Lub npe "API 5L PSL2 Qib X65 Kauv Submerged Arc Yeeb Nkab" sib txuas ua ke siab -lub zog kav dej qib (X65) nrog qib PSL2 zoo dua qub, tsim los siv cov txheej txheem kev lag luam spiral vuam rau loj - txoj kab uas hla, siab - daim ntawv thov kev ntseeg siab.
📋 Cov ntsiab lus tseem ceeb rau API 5L PSL2 Qib X65 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 xav tau nruj dua li PSL1 suav nrog kev tswj cov tshuaj lom neeg nruj dua,Kev txwv lub zog siab tshaj plaws, yuav tsum tau kuaj Charpy, thiab nruj dua NDT. |
| Qib Steel | X65 (L450): Qib siab - zog. Qhov kev xaiv "X65" qhia qhov tsawg kawg nkaus tawm lub zog ntawm65,000 psi (448 MPa) . |
| ISO npe | L450los yogL450Q/X65Q(quenched & tempered),L450M/X65M(thermomechanical dov). |
| 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 . |
| Chemical Composition (Max%) | Cov pa roj carbon (C): 0.12% max(qhov tseem ceeb qis dua PSL1's 0.26%) Silicon (Si):0.45% max Manganese (Mn):1.60% max (siab dua PSL1's 1.45%) Phosphorus (P): 0.025% max(nruj dua PSL1's 0.030%) Sulfur (S): 0.015% max(50% txo los ntawm PSL1's 0.030%) |
| Mechanical Properties | Yield zog: 448-600 MPa (65,000-87,000 psi)range - ob qho tib siyam tsawg kawg thiab siab kawgqhia Tensile zog: 535-760 MPa (77,600-110,200 psi)range - ob qho tib siyam tsawg kawg thiab siab kawgqhia Yield-rau-Tensile Ratio:Tsawg dua los yog sib npaug0.93siab kawg Charpy Impact: Yuav tsum tauntawm qhov ntsuas kub (feem ntau 0 degree, -10 degree, -20 degree, lossis -30 degree) nrog tsawg kawg 27J-100J nyob ntawm qhov tshwj xeeb |
| Hom Loj Loj | Sab nraud txoj kab uas hla:219mm txog 4064mm (kwv yees . 8" rau 160") Phab ntsa Thickness:3.2 hli mus rau 40 hli (ntau ntau 5-26 hli, mus txog 25.4 hli rau cov haujlwm tseem ceeb) 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 Kev Ntsuas Tensiletxheeb xyuas ob qho tib si yam tsawg kawg nkaus thiab siab kawg Tshuaj ntsuam xyuasnrog nruj dua PSL2 txwv (tshwj xeeb tshaj yog 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 yeeb nkab ntawm 1.5x tsim siab Kev kuaj Hardnessrau qib kev pabcuam qaub (yeem xaiv HIC/SSC xeem ib NACE) |
| Cov ntawv thov siv | Siab - cov roj thiab cov kav xa hluav taws xob siab; offshore pipelines; txias huab cua pipelines yuav tsum tau guaranteed toughness; natural gas sib sau ua ke thiab kis tau tus mob; pipeline chaw nres tsheb; tseem ceeb infrastructure; tswj cov kav dej (FERC, DOT, FEMSA kab); qaub daim ntawv thov kev pab thaum teev; CO₂ thiab hydrogen thauj pipelines. |
| 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, lossis BV pom zoo muaj rau cov haujlwm tseem ceeb. |
📊 API 5L PSL2 Qib X65: 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 0.12% | 0.26% (tseem ceeb nruj tswj) |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.60% | 1.45% (siab dua rau lub zog) |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.025% | 0.030% (tsis suav) |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.015% | 50% txo los ntawm PSL1's 0.030% |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.45% | Tsis tau teev nyob rau hauv PSL1 |
Mechanical Properties
| Khoom | PSL2 Kev Xav Tau | Qhov tseem ceeb |
|---|---|---|
| Yield zog | 448-600 MPa | Ob leeg yam tsawg kawg nkaus thiab siab tshaj tau teev tseg |
| Tensile zog | 535-760 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 27-100J @ teev temp | Yuav tsum tau, tsis zoo li PSL1. Rau cov haujlwm tseem ceeb, Ntau dua lossis sib npaug rau 100J ntawm -10℃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")
📊 Qhov twg X65 haum ntawm API 5L PSL2 Qib
X65 yog positioned raws li tus nqi siab tshaj - kev xaiv muaj zog rau kev thov cov raj xa dej, muab cov txiaj ntsig zoo ntawm cov qib qis dua:
| Qib | Tawm tswv yim (min, MPa) | Tawm tswv yim (max, MPa) | Tensile (min, MPa) | Daim ntawv thov |
|---|---|---|---|---|
| B | 245 | 450 | 415 | Tsawg-kev sib sau ua ke, kev siv hluav taws xob |
| X42 | 290 | 495 | 415 | Sib sau ua ke, faib |
| X46 | 317 | 524 | 435 | Nruab nrab-kev sib sau ua ke |
| X52 | 359 | 530 | 460 | General kis tau tus mob - feem ntau |
| X56 | 386 | 545 | 490 | Siab dua -siab kis |
| X60 | 414 | 565 | 517 | High -siab kis |
| X65 | 448 | 600 | 535 | Siab -siab, offshore, thov thov |
| X70 | 483 | 635 | 565 | Ntev -ntaus, siab-siab |
| X80 | 552 | 705 | 625 | Ultra-siab- siab lub cev kab |
🔍 Cov ntsiab lus tseem ceeb kom nkag siab
Dab tsi "PSL2 Qib X65" txhais tau tias: Qhov kev qhia tshwj xeeb no suav nrog qib siab - lub zog X65 (448 MPa yam tsawg kawg nkaus tawm los) nrog cov kev xav tau zoo ntawm PSL2. Qhov tshwm sim yog ib lub yeeb nkab nrog448 MPa yam tsawg kawg nkaus yield zoguas kuj ntaguaranteed cuam tshuam toughness, nruj 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 600 MPa), thiab tag nrho traceability .
Vim li cas thiaj xaiv PSL2 Qib X65?PSL2 Qib X65 tau teev tseg thaum:
Siab - yuav tsum muaj peev xwm siab (kwv yees li 8% siab dua lub zog ntau dua X60 thiab 25% siab dua X52)
Tsawg- qhov kub thiab txias kev pabcuam yuav tsum tau lees paub qhov cuam tshuam (feem ntau -10℃txog -45 degree)
Qhov project specifications mandate PSL2 zoo (ib yam rau kev tswj kav)
Txhim kho cov ntaub ntawv thiab traceability yuav tsum tau los ntawm code
Kev txwv lub zog siab tshaj plaws xav tau kev tswj xyuas kom tsis txhob muaj teeb meem ntawm kev sib tsoo
Cov kev pabcuam qaub yuav tsum muaj cov ntsiab lus sulfur tsawg (tsawg dua lossis sib npaug li 0.015%)
Kev tswj hwm kev ua raws cai (FERC, DOT, FEMSA kab) yuav tsum tau ua
Offshore thiab marine daim ntaub ntawv xav tau superior toughness
X65 vs. Qib qis: X65 muab kwv yees li8% siab tshaj tawm lub zog tshaj X60(448 MPa vs . 414 MPa) thiab25% siab dua X52(448 MPa vs . 359 MPa), ua rau nws yog qhov kev xaiv zoo tshaj plaws rau siab - cov kab xa hluav taws xob uas cov qib qis dua yuav xav tau cov phab ntsa tuab heev.
Impact Test Temperature: Standard Charpy xeem yog nyob ntawm0 degreenrog 27J yam tsawg kawg nkaus, tab sis qhov kub thiab txias (-10 degree, -20 degree, -30 degree, -45 degree) tuaj yeem teev rau kev thov. Rau cov dej num tseem ceeb xws li 800km Algeria gas pipeline, cuam tshuam qhov tseem ceeb tshaj lossis sib npaug rau 100J ntawm -10℃tau teev tseg.
Sour Service Option: Rau H₂S- muaj ib puag ncig, qhia meejX65 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 .
Kev kho cua sov tsim: X65 PSL2 tuaj yeem suav nrog cov lus xaus qhia txog kev kho cua sov:
X65M: Thermomechanically dov (TMCP - rau kev txhim kho toughness thiab weldability)
X65Q: quenched thiab tempered (rau siab tshaj plaws lub zog uniformity)
X65N: Normalized (tsawg dua rau X65)
SSAW Qhov Zoo rau PSL2: Cov txheej txheem welding muab cov txiaj ntsig tshwj xeeb rau cov kav loj - txoj kab uas hla, siab - cov kav dej muaj zog:
Loj Loj Muaj peev xwm: Muaj peev xwm tsim tau 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 X65 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: Kauv weld seam disperses kev ntxhov siab ntau tusyees dua ncaj seam
📝 PSL2 vs. PSL1 Sib piv rau X65 SSAW Yeeb Nkab
Cov lus hauv qab no qhia txog qhov sib txawv tseem ceeb ntawm PSL1 thiab PSL2 rau X65, qhia tias vim li cas PSL2 yog qhov kev xaiv hwm:
| Feature | PSL1 Qib X65 | PSL2 Qib X65 | Qhov tseem ceeb |
|---|---|---|---|
| Cov pa roj carbon (C) max | 0.26% | 0.12% | 54% txo- zoo dua weldability, qis HAZ hardness, txhim kho toughness |
| Sulfur (S) max | 0.030% | 0.015% | 50% txo- tseem ceeb rau toughness thiab HIC kuj |
| Phosphorus (P) max | 0.030% | 0.025% | Txhim kho toughness thiab weldability |
| Manganese (Mn) max | 1.45% | 1.60% | Me ntsis siab dua rau lub zog |
| Yield zog | 448 MPa min xwb | 448-600 MPa ntau | Tiv thaiv tshaj - cov ntaub ntawv muaj zog uas tuaj yeem ua rau muaj teeb meem vuam |
| Tensile zog | 535 MPa min xwb | 535-760 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(27-100J @ teev temp) | Guarantee qis -kub toughness |
| 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 | Kev pabcuam dav dav, kab dej, huab cua huab cua | Kev pabcuam tseem ceeb, siab-siab, qis-kub, offshore, tswj kav kav dej |
🔧 Kev Tsim Kho Txheej Txheem rau API 5L PSL2 Qib X65 SSAW Yeeb Nkab
Cov txheej txheem tsim khoom ua raws li kev txhim kho PSL2 kev tswj hwm zoo nrog rau kev sim thiab cov ntaub ntawv ntxiv:
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 tag nrho traceability.
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 muaj kev tswj hwm nruj.
Tsis yog -Kev kuaj kev puas tsuaj: 100% ultrasonic (UT) thiab / lossis radiographic (RT) tshuaj xyuasntawm tag nrho cov vuam ntev nrog PSL2 kev lees paub. Cov chaw niaj hnub siv automated nruam UT systems.
Kev Ntsuas Hydrostatic: Txhua cov yeeb nkab ib leeg raug kuaj xyuas kom ntseeg tau tias muaj kev ntseeg siab ntawm1.5x 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.
Xaus Xaus: Xaus npaj (dawb lossis beveled ib ASME B16.25) rau kev vuam; kawg lub ntsej muag perpendicularity tswj.
Txheej: Cov txheej txheem sab nraud (3LPE, FBE, 3LPP, thee tar epoxy) thiab cov ntaub ntawv sab hauv muaj rau kev tiv thaiv corrosion.
🏭 Daim Ntawv Thov thiab Kev Xaiv Qhov Tseeb
API 5L PSL2 Qib X65 SSAW kav yog siv rau hauv cov ntawv thov uas yuav tsum tau ua kom zoo dua qub:
| Daim ntawv thov | Vim li cas PSL2 Qib X65 tau qhia | Yam yuav tsum tau muaj |
|---|---|---|
| Siab -Hloov Gas Transmission | Guaranteed Charpy cuam tshuam toughness ntawm 0℃rau -30℃kom tus cwj pwm zoo; 25% siab zog tshaj X52 tso cai rau optimized phab ntsa thickness | Kev ntsuas cuam tshuam ntawm -10℃rau -20 degree, 100% NDT, PSL2 ntawv pov thawj |
| Offshore Pipelines | Tight sulfur tswj (tsawg dua lossis sib npaug li 0.015%) muab HIC tsis kam; tag nrho traceability yuav tsum tau; yield zog ntau yam kom zoo ib yam khoom | S Tsawg dua lossis sib npaug li 0.015%, PSL2 daim ntawv pov thawj, DNV/TÜV kev pom zoo, thib peb-kev soj ntsuam tog |
| Kev nyab xeeb txias / Arctic Pipelines | Kev ntsuam xyuas cuam tshuam ntawm -30℃txog -45℃kom ntseeg tau tias kev puas tsuaj puas; lub zog siab dua tso cai rau txo cov phab ntsa thickness hauv cov dej khov-nrhiav | Charpy ntawm -45 degree, DWTT kuaj, ntsuas kub qis |
| Kev tswj kav kav dej | FERC/DOT jurisdictions feem ntau xav tau PSL2 zoo rau tag nrho cov kav dej; siab tshaj tawm lub zog tiv thaiv ntau tshaj -kev sib tw hauv welds | Cov ntaub ntawv tag nrho, PSL2 daim ntawv pov thawj, cov ntaub ntawv taug qab |
| Sour Service | Cov ntsiab lus tsis tshua muaj leej faj (tsawg dua lossis sib npaug rau 0.002% rau cov qib qaub) nrog rau kev kuaj tawv tawv (tsawg dua lossis sib npaug rau 248 HV10) ua tau raws li NACE MR0175 cov cai | HIC/SSC xeem, hardness soj ntsuam, NACE certification |
| Hla -Lub Tebchaws Kab Kab | Qhov zoo tshaj qhov sib npaug ntawm lub zog, toughness, thiab weldability rau ntev -cov kav dej (piv txwv li, 800km Algeria pipeline) | DNV Hom Kev Pom Zoo, thib peb - tog neeg soj ntsuam, cov ntaub ntawv qhia meej |
| Subsea Pipelines | Cov ntawv thov tseem ceeb xav tau PSL2 qhov kev sim ua kom zoo dua qub, kev taug qab, thiab kev tswj kom zoo | PSL2, DWTT, CTOD kuaj, pob zeb hnyav txheej |
| CO₂ thiab Hydrogen Transport | Lub zog siab tso cai rau kev ua haujlwm siab dua; zoo heev toughness kom muaj kev ruaj ntseg rau lwm lub zog thauj | Kev ntsuam xyuas tshwj xeeb, kev ntsuam xyuas cov tshuab puas |
🛡️ Txheej Options rau Corrosion Protection
API 5L PSL2 X65 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) | Underground pipelines | 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 | Kub kub tsis kam (txog 140 degree), zoo heev mechanical zog | 2.5-3.7 hli |
| Dual Txheej FBE (ARO) | Abrasive ib puag ncig | Txhim khu kev cuam tshuam thiab kev puas tsuaj, cathodic disbondment kuj | 400-800 μm |
| Coal Tar Enamel | Marine ib puag ncig | Tus nqi -zoo, siab noo noo tsis kam | 3-5 hli |
| Internal Epoxy txheej | Corrosive media | Txo kev sib txhuam, tiv thaiv corrosion, txhim kho kev khiav hauj lwm | 250-500 μm |
| Pob zeb hnyav txheej (CWC) | Offshore / subsea pipelines | Tsis zoo buoyancy thiab mechanical tiv thaiv | 25-150 hli |
💰 Tus nqi txiav txim siab (2025-2026 kwv yees)
Raws li cov ntaub ntawv ua lag luam, API 5L PSL2 X65 kauv kav feem ntau yog los ntawm$800 txog $1,500 ib tujNyob ntawm phab ntsa thickness, specifications, thiab coatings:
| Phab ntsa Thickness | Nqe Ntau (USD/ton) | Tej kev siv |
|---|---|---|
| 6-10 hli | $800 – $1,150 | Sib sau cov kab, kev xa dej |
| 12-18 hli | $1,050 – $1,450 | High -siab kis tau tus mob, offshore |
| 20-26 hli | $1,350 – $1,800 | Dej tob, arctic, kev pabcuam tseem ceeb |
* Ceeb Toom: Cov nqi sib txawv raws li qhov kev txiav txim kom muaj nuj nqis (tsawg kawg 1-5 tons ib txwm), txheej txheej (3LPE / FBE ntxiv $ 50-150 / ton), cuam tshuam kev ntsuas kub, qib ntawv pov thawj (3.1 vs 3.2), thiab lo lus uas peb. Cov qauv zoo tshaj plaws nrog kev txhim kho corrosion kuj (13-xyoo kev tiv thaiv) thiab kev ntsuas siab dua (2600 psi) hais kom tus nqi hwm .*
📝 Cov ntsiab lus tseem ceeb
Thaum xaiv PSL1 Qib X65 :
General high -pressure pipeline service in temperate climates
Cov ntawv thov uas X60 lub zog tsis txaus tab sis X70 tuaj yeem dhau - qhia
Tus nqi - cov haujlwm tseem ceeb uas tus nqi them PSL2 tsis raug cai
Tsis yog - kev pabcuam tseem ceeb uas tsis tas yuav muaj kev sim cuam tshuam thiab txwv lub zog siab tshaj plaws
Thaum xaiv PSL2 Qib X65 :
Tsawg- qhov kub thiab txias qhov kev pab cuam yuav tsum tau lav qhov cuam tshuam (arctic, huab cua txias)
Kev pabcuam qaub (H₂S ib puag ncig xav tau NACE MR0175 / ISO 15156)
Tseem ceeb heev - kab siab
Kev ua raws cai (FERC, DOT, FEMSA kab)
Offshore thiab marine applications
Cov phiaj xwm tshwj xeeb uas yuav tsum tau muaj zog (Ntau dua lossis sib npaug rau 100J ntawm -10 degree)
Hla -cov kab hauv lub teb chaws yuav tsum muaj daim ntawv pov thawj thib peb - tog (DNV, TÜV)
CO₂ thiab daim ntawv thov thauj hydrogen
International sib npaug: X65 PSL2 muaj ntau qhov sib npaug thoob ntiaj teb:
ISO 3183 L450ME(TMCP) lubL450 QE(quenched & tempered)
GB/T 9711 L450 PSL2
DNV OS{0}}F101 Qib 450(zoo li lub zog theem)
TS EN 10217-3 P355N / NH(kwv yees, qis zog)
Ua kom tiav Specification: Thaum xaj, qhia meej:
API 5L PSL2, Qib X65M lossis X65Q, SSAW (kauv welded), Loj (OD x WT), Ntev, Xaus Xaus
Impact Test kub: [piv txwv li, 0 degree, -10 degree, -20 degree, -30 degree, -45 degree]
Impact Energy Requirement: [piv txwv li, 27J, 40J, 100J yam tsawg kawg nkaus]
Kev kho cua sov: [M - TMCP, Q - Quenched & tempered] yog tias xav tau
Txhua qhov kev xav tau ntxiv (kev pabcuam qaub nrog HIC / SSC kuaj, NDT ntxiv, kuaj hardness)
Cov txheej txheem txheej: [piv txwv li, 3LPE, FBE, 3LPP] nrog thickness specifications
Daim ntawv pov thawj: EN 10204 Hom 3.1 lossis 3.2 nrog rau thib peb -tus neeg tim khawv
Project-kev pom zoo tshwj xeeb: DNV, TÜV, BV, lossis Lloyds yog tias xav tau
📝 Cov ntsiab lus
API 5L PSL2 Qib X65 Kauv Submerged Arc Welded kavyog atus qauv, hwm - kev xaiv zoo rau siab - cov ntawv thov cov kav dej uas xav tau kev txhim kho toughness thiab kev ntseeg tau. Nrog yam tsawg kawg nkaus tawm lub zog ntawm448 MPa (65,000 psi)- kwv yees li25% siab dua X52thiab8% siab dua X60- cov kav dej no muab cov khoom siv kho kom zoo ntawm X65 nrog cov yam ntxwv zoo ntawm PSL2:guaranteed Charpy tej yam toughness, tsis tshua muaj nruj 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 600 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 - cov txheej txheem tsim khoom SSAW tau zoo thaum ua tau raws li qhov xav tau nruj ntawm API 5L specification .
PSL2 Qib X65 yog qhov kev qhia tshwj xeeb rau:
Siab -pas kis tau tus mobyuav tsum tau guaranteed tej yam khoom
Offshore thiab marine applicationsnrog kev tswj tshuaj nruj heev
Kev nyab xeeb txias thiab cov kav dej arcticyuav tsum muaj kev ntsuam xyuas ntawm -30℃rau -45 degree
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
Hla - lub teb chaws kab kabYuav tsum muaj daim ntawv pov thawj thib peb (DNV, TÜV)
Tseem ceeb infrastructure tej yaam numqhov twg yuav tsum tau txhim kho cov ntaub ntawv
Kev siv CO₂ thiab hydrogen thauj mus losxav tau kev ncaj ncees siab
Thaum txiav txim, xyuas kom meej koj qhiaAPI 5L PSL2 Qib X65, SSAW, nrog rau qhov yuav tsum tau muaj qhov ntev, qhov ntsuas qhov ntsuas kub, kev kho cua sov (M lossis Q), thiab cov txheej txheem los yog cov txheej txheem ntxiv raws li koj daim ntawv thov tshwj xeeb. Rau cov haujlwm tseem ceeb, 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 qhov yuav tsum tau ua ntawm qhov project.
