API 5L X56 Longitudinal Submerged Arc Vuam (LSAW) Pipe
Product Overview
API 5L X56 LSAW yeeb nkab yog siab - lub zog steel pipeline khoom tsim los ntawm Longitudinal Submerged Arc Vuam txheej txheem, ua raws li API 5L (American Petroleum Institute) specification. Qhov kev xaiv "X56" qhia qhov tsawg kawg nkaus tawm lub zog ntawm 56,000 psi (386 MPa). Cov kav dej no yog tsim los rau kev thov cov raj xa dej uas xav tau cov khoom siv zoo tshaj plaws thiab kev ntseeg tau.
Kev tsim khoom
1. Kev npaj phaj & tshuaj xyuas
Kev xaiv cov hlau phaj ntsib API 5L PSL1 lossis PSL2 cov cai rau qib X56
Ultrasonic kuaj ntawm cov khoom siv hauv paus
Ntug npaj rau vuam
2. Cov txheej txheem tsim
| Txoj kev | Kev piav qhia | Daim ntawv thov |
|---|---|---|
| UAE | U-forming → O-forming → Expansion | Siab - ntim, tswj qhov loj me |
| JCOE | J-forming → C-forming → O-forming → Expansion | Thick{0}}walled, loj txoj kab uas hla |
| Roll Bending | Progressive dabtsi yog khoov los ntawm rollers | Cov khoom me me khiav, ntau yam |
3. Vuam txheej txheem
Internal Vuam:Ua ntej dhau siv submerged arc vuam
Sab nrauv Vuam:Qhov thib ob pass ua tiav qhov sib koom ua ke
Flux System:Agglomerated los yog fused flux txuam electrode muaj pes tsawg leeg
Automation:Automatic welding nrog - lub sijhawm ntsuas ntsuas
4. Tshaj tawm -Welding Operations
Weld seam annealing (yog tias xav tau)
Ultrasonic kuaj ntawm weld seam
Kev ntsuam xyuas hydrostatic
Xaus ntsej muag thiab beveling
Technical Specifications
Tshuaj muaj pes tsawg leeg (Tswj - API 5L PSL2)
| Lub ntsiab | Qhov siab tshaj % | Sau ntawv |
|---|---|---|
| Cov pa roj carbon (C) | 0.26 max | Tsawg carbon txhim kho weldability |
| Manganese (Mn) | 1.45 max | Lub hauv paus tseem ceeb ntxiv dag zog |
| Phosphorus (P) | 0.025 max | Tswj impurity |
| Sulfur (S) | 0.015 max | Tswj impurity |
| Silicon (Si) | 0.45 max | Deoxidizer |
| Niobium (Nb) | 0.05 max | Microalloying Element (yeem) |
| Vanadium (V) | 0.10 max | Microalloying Element (yeem) |
| Titanium (Ti) | 0.06 max | Grain refiner (yeem) |
Lus Cim: Carbon Equivalent (CE) feem ntau txwv rau 0.43% max rau PSL2 los xyuas kom meej weldability
Mechanical Properties
| Khoom | API 5L Cov Lus Qhia rau X56 | Yam khoom muaj nqis |
|---|---|---|
| Yield zog (min) | 56,000 psi (386 MPa) | 58,000-75,000 psi |
| Tensile zog (min) | 66,000 psi (455 MPa) | 68,000-85,000 psi |
| Tensile Strength (max) - PSL2 | 110,000 psi (758 MPa) | Tswj raws li specification |
| Yield / Tensile ratio (max) | 0.93 (PSL2) | 0.85-0.92 hli |
| Elongation (min) | Raws li API 5L formula | Feem ntau 18-25% |
| Hardness (max) | 248 HBW (ntev) | Raws li qhov xav tau ntawm qhov project |
| Charpy Impact | Specified ib qhov project | -20℃rau -40℃ntau |
Standard Size Range
| Parameter | Standard Range | Muaj peev xwm tshwj xeeb |
|---|---|---|
| Sab nraud txoj kab uas hla | 18" - 64" (457-1626 hli) | Txog li 80 "ua tau |
| Phab ntsa Thickness | 6.0 - 40 hli | Txog li 60 mm muaj |
| Ntev | 6m, 12m, 12.2m, 18.3m | Kev cai ntev muaj |
| Xaus Xaus | Plain kawg, beveled, grooved | Raws li API 5L lossis cov neeg siv khoom spec |
Kev Tswj Xyuas Zoo & Kev Xeem
Yuav tsum tau xeem (API 5L)
Hydrostatic Test:Qhov ntsuas qhov tsawg kawg nkaus=90% SMYS × 2 × phab ntsa thickness / OD
Tsis yog -Kev kuaj kev puas tsuaj:
Ultrasonic Test (UT) ntawm weld seam
Kev kuaj ultrasonic ntawm phaj / lub cev (PSL2)
Radiographic Testing (RT) xaiv tau / ntxiv
Mechanical Tests:
Tensile xeem (transverse thiab longitudinal)
Charpy V-kev ntsuas qhov cuam tshuam (PSL2)
Kev kuaj Hardness
Dimensional Checks:
Txoj kab uas hla, ovality, phab ntsa thickness
Ncaj, ntev, kawg squareness
Kev Xeem Ntxiv (Project Specific)
Tso- hnyav kua muag kuaj (DWTT)
SSC / HIC kuj kuaj (rau kev pabcuam qaub)
CTOD kuaj rau pob txha toughness
Tag nrho -weld- hlau tensile xeem
Daim ntawv thov
Primary Industries
| Sector | Daim ntawv thov | Yam yuav tsum tau muaj |
|---|---|---|
| Roj & Roj kis tau tus mob | Main pipeline networks, sib sau ua ke systems | Kev kub siab, corrosion kuj |
| Offshore Engineering | Subsea pipelines, risers | Fatigue resistance, tawg toughness |
| Petrochemical | Cov txheej txheem piping, kab siv hluav taws xob | Muaj peev xwm kub |
| Kev xa dej | Loj txoj kab uas hla dej mains | Kev tiv thaiv corrosion, durability |
| Cov qauv tsim | Piling, kev txhawb nqa hauv paus | Siab zog - rau - hnyav piv |
Kev Pabcuam
Tsim siab: Feem ntau 1,000-2,500 psi
Qhov kub thiab txias: -20℃txog 120℃(qib tshwj xeeb rau huab cua txias)
Sour service compatibility: Muaj nrog HIC-cov qhab nia tiv taus
Kev pabcuam Arctic: Muaj nrog tsawg- qhov kub thiab txias cuam tshuam
Sib piv nrog Lwm Qib
| Khoom | X52 | X56 | X60 | X65 |
|---|---|---|---|---|
| Tsawg-yield (MPa) | 358 | 386 | 414 | 448 |
| Tsawg Tensile (MPa) | 455 | 490 | 517 | 531 |
| Kev siv yam | Cov kab nruab nrab siab | Nruab nrab siab | Siab siab | Siab siab heev |
| Nqi Factor | 1.00 | 1.05-1.10 | 1.10-1.20 | 1.15-1.25 |
| Muaj | Zoo heev | Zoo heev | Zoo heev | Zoo heev |
Standards & Certifications
Thawj Cov Qauv
API Specification 5L (46th Edition lossis tom qab)
ISO 3183: Sib npaug thoob ntiaj teb tus qauv
ASTM A1016: Cov kev cai dav dav
Ntxiv Specifications
DNVGL-ST-F101: Offshore pipelines
CSA Z245.1: Canadian tus qauv
GB / T 9711: Suav teb tus qauv
Cov ntawv pov thawj
API Monogram daim ntawv tso cai
ISO 9001 Kev Tswj Xyuas Zoo
ISO 14001 Kev Tswj Xyuas Ib puag ncig
PED 2014/68/EU (European pressure equipment)
Ntim & Marking
Standard Marking
Tus neeg tsim khoom lub npe / logo
API 5L, qib X56, PSL qib
Thaum tshav kub kub naj npawb thiab cov yeeb nkab tooj
Loj: OD × WT × Length
Kuaj siab thiab hnub tim
Qhov chaw / daim ntawv cog lus naj npawb
Kev tiv thaiv
End caps rau cov yeeb nkab kawg
VCI (Vapor Corrosion Inhibitor) daim ntawv qhwv
Stacking raws li API 5L cov lus qhia
Kev tiv thaiv tiv thaiv kev puas tsuaj thaum thauj
Technical Advantage
Superior Weld Quality:SAW muab kev sib sib zog nqus sib sib zog nqus thiab cov khoom sib xws
Dimensional Precision:Expansion txheej txheem ua kom zoo heev roundness thiab tolerances
Cov khoom sib xws:Microalloyed steel muab lub zog zoo tshaj - sib npaug toughness
Versatility:Haum rau ntau yam ib puag ncig thiab kev pabcuam
Pov thawj Reliability:Cov ntaub ntawv nthuav dav hauv cov phiaj xwm tseem ceeb hauv cov kav dej
Ordering Information
Thaum xaj API 5L X56 LSAW yeeb nkab, qhia meej:
Qhov ntau (meters lossis tons)
Sab nraud txoj kab uas hla thiab phab ntsa thickness
Ntev yuav tsum
API 5L PSL qib (1 lossis 2)
Cov kev xav tau ntxiv (yog tias muaj)
Xaus cov ntsiab lus npaj
Coating Requirements (Internal/External)
Lub sij hawm xa tuaj thiab qhov chaw
Nco tseg: Cov ntaub ntawv kev kawm yuav txawv ntawm cov chaw tsim khoom. Nco ntsoov sab laj cov chaw tsim khoom tshwj xeeb rau qhov project- cov cai tshwj xeeb.
