X52 PSL2 Underground Kab Yeeb Nkab Nrog FBE Sab Nraud
API 5L X52 PSL2 Underground Line Pipe nrog FBE (Fusion Bonded Epoxy) Sab nrauv txheejyog ib qho kev ua haujlwm siab -piping kev daws teeb meem engineered rau faus roj, roj, thiab dej xa mus qhov twg ob qho tib si lub zog thiab superior corrosion kuj tseem ceeb heev. Cov txheej txheem no ua ke nrog lub siab -lub zog steel substrate- muab lub zog tsawg kawg nkaus ntawm52,000 psi (360 MPa)- nrog rau cov thermoset epoxy txheej, feem ntau siv rau hauv thicknesses300 txog 600 microns, uas chemically bonds rau steel nto los tiv thaiv cathodic disbondment thiab av - ua rau corrosion.
Adhering rauPSL2tus qauv, cov yeeb nkab yuav tsum tau ua Charpy V- ntsuas qhov cuam tshuam (piv txwv li,Ntau dua lossis sib npaug27j0 qib) thiab tuav cov pa roj carbon sib npaug (CEiiwTsawg dua los yog sib npaug0.43) txhawm rau lav qhov muaj peev xwm ntes tau thiab siab - zoo tshaj plaws weldability nyob rau hauv siab - siab subterranean ib puag ncig.
API 5L X52 PSL2 Roj thiab roj kis cov yeeb nkab Specification Table
| Yam khoom | Paub meej |
| Txuj | API Spec 5L (PSL2), ISO 3183 |
| Qib | X52 / L360 |
| Txheej Txheem | API RP 5L9, CAN/CSA Z245.20, AWWA C213 |
| Txheej hom | Fusion Bonded Epoxy (FBE) |
| Ua raws li | IPS -M-PI-190(4), NACE MR0175, ISO 1516 |
| FBE Thickness | Txheem: 300-450 μm; Hnyav Haujlwm: 500-600 μm |
| Xaus kev sib txuas | Beveled Ends (rau vuam) |
| Kev npaj kawg | Beveled Ends, Ob Chav Random Length (~ 12 m), Xaus Caps |
| Ntev | 6m, 12m, lossis kev cai Ob Chav Random Length (DRL) |
| Hom kev pabcuam | Kev xa tawm hauv av (Onshore / Offshore) |
API 5L X52 PSL2 Roj yeeb nkabChemical Composition (Mass Fraction%)
Rau PSL2, kev txwv tshuaj lom neeg muaj kev txwv ntau dua li PSL1 los txhim kho weldability thiab toughness. Cov nqi hauv qab no yog rauWelded (HFW / ERW)cov kav dej, uas yog feem ntau siv rau kev sib kis hauv av.
| Element | Max (%) |
| Cov pa roj carbon (C) | 0.16 |
| Silicon (Si) | 0.45 |
| Manganese (Mn) | 1.40 |
| Phosphorus (P) | 0.025 |
| Sulfur (S) | 0.015 |
| Vanadium (V) | 0.10 |
| Niobium (Nb) | 0.05 |
| Titanium (Ti) | 0.04 |
| Carbon sib npaug (CEiiw) | 0.43 (Max) |
| Carbon sib npaug (CEpcm) | 0.25 (Max) |
Lus Cim rau Carbon Equivalent (CE):Qhov no yog qhov tseem ceeb rau cov kav dej hauv av. CE qis dua kom ntseeg tau tias cov yeeb nkab tuaj yeem yooj yim welded hauv thaj teb (trench) yam tsis muaj qhov tawg.
API 5L X52 PSL2 Underground Line Pipe nrog FBEMechanical Requirements
PSL2 txoj cai tsis yog tsuas yog lub zog tsawg kawg nkaus xwb tab sis kujsiab kawgtxwv thiab ib qho tshwj xeebYield-rau-Tensile pivkom ntseeg tau tias cov yeeb nkab yuav kwv yees tau nyob rau hauv siab - siab loads.
| Khoom | Qhov yuav tsum tau muaj (Metric) | Yuav Tsum Tau (US Customary) |
| Yield zog (Rt0.5) | 360-510 MPa | 52,200-74,000 psi |
| Tensile zog (Rm ) | 460-760 MPa | 66,700 - 110,200 psi |
| Yield-rau-Tensile Ratio | 0.93 (siab tshaj) | 0.93 (siab tshaj) |
| Elongation (Af) | Raws li tus ntoo khaub lig- ntu ntu | Kwv yees li . 20–30% |
Yield-rau-Tensile Ratio (0.93):Qhov no ua kom cov yeeb nkab muaj qhov "reserve zog" txaus ntawm qhov taw tes nws pib deform thiab qhov taw tes nws tau tawg.
API 5L X52 PSL2 Kab Pipes rau roj & roj Thickness & Schedule daim ntawv (Common Size)
| Nominal Loj (NPS) | OD (mm) | Teem caij | Phab ntsa Thickness (mm) | Qhov hnyav (kg / m) |
| 6" | 168.3 | SCH 40 / STD | 7.11 | 28.26 |
| 8" | 219.1 | SCH 40 / STD | 8.18 | 42.55 |
| 10" | 273.1 | SCH 40 / STD | 9.27 | 60.31 |
| 12" | 323.8 | SCH 40 / STD | 9.53 | 73.88 |
| 16" | 406.4 | SCH XS | 12.70 | 123.30 |
| 24" | 609.6 | SCH 40 | 17.48 | 255.41 |
FBE Txheej Mechanical Performance
FBE txheej yuav tsum mechanically "daim ntawv cog lus" nrog X52 steel. Nws cov khoom raug kuaj raws li cov qauv zoo liCAN/CSA Z245.20los yogAWM C213:
| Khoom | Kev xav tau |
| Adhesion (Interface) | Kev ntsuas 1 txog 2 (Tsis muaj tev tawm ntawm cov hlau) |
| Catholic Disbondment |
Tsawg dua los yog sib npaug6.5mm (hli 65∘Crau 48 teev) |
| Impact Resistance |
Ntau dua lossis sib npaug1.5 Joules (Tsis muaj hnub so / qhov tom qab cuam tshuam) |
| Flexibility (khoov) | Tsis muaj cracking thaum khoov ntawm 2.5∘rau 3.0∘nyob rau hauv cov yeeb nkab diameter ntev |
Peb muab seamless, ERW, LSAW thiab SSAW API 5L X52 PSL2 kav nrog customized qhov ntev, txheej txheej thiab soj ntsuam yuav tsum tau rau cov roj, roj thiab dej kis tau tus mob tej yaam num.
Daim ntawv thov hauv av
faus onshore roj & roj sib sau ua ke kab txuas txuas rau lub taub hau rau kev ua cov nroj tsuag
Hauv nruab nrab hauv av hauv nroog -ntxhiab cov pa hluav taws xob faib cov kav dej hauv nroog thiab cov nroog
faus hla -lub teb chaws cov dej hauv av thiab cov roj av xa mus
Plua plav- faus cov kav dej hiav txwv subsea landfall thiab jumper txuas ntu
faus pipeline systems rau refineries, thermal fais fab nroj tsuag thiab tshuaj ua tej chaw
faus qis- qaub tsim cov kab sib sau ua ke nrog kev xaiv NACE daim ntawv pov thawj kev pabcuam qaub
Common Technical Requirements
A) Kev muab khoom yuav tsum nruj me ntsis los ntawm AVL pom zoo Mills
B) Kev tsim khoom
- Siab tua hlau
- Kev ua zoo lis
- Tswj dov / TMCP
- Weld seam normalized
- Tsis kho vuam yam tsis tau txais kev pom zoo
C) Kev Tshawb Fawb & Kev Ntsuas
- 100% Hydrotest
- 100% UT weld seam
- Eddy Tam sim no / Lub cev tshuaj xyuas
- Mechanical xeem rau PSL2
- HIC / SSC tsim nyog rau kev pabcuam qaub
D) Kev Tshawb Fawb Thib Peb Los Ntawm:
SGS los yog Bureau Veritas los yog TÜV
E) Cov ntaub ntawv
- EN 10204 3.1 MTC
- NDT reports
- Txheej qhia
- Traceability cov ntaub ntawv
- Daim ntawv pov thawj ua raws
GNEE API 5L X52 Underground Line Pipe Factory
GNEE API 5L X52 PSL2 Kab Pipes rau roj & roj Test equipments
GNEE API 5L X52 welded kab yeeb nkab daim ntawv pov thawj
FAQ
Dab tsi yog phab ntsa thickness ntawm X52 yeeb nkab?
X52 yeeb nkab tsis muaj ib lub phab ntsa ruaj khov. Nws txawv nyob ntawm qhovPipe Size (NPS)thiab covTeem caij (SCH)xav tau rau koj qhov kev xav tau tshwj xeeb.
Common phab ntsa thicknesses rau X52 yeeb nkab muaj xws li:
Txheem (STD) / SCH 40:Feem ntau siv rau kev sib kis.
Ntxiv Strong (XS) / SCH 80:Siv rau siab dua - ntu siab.
Hom kab:Los ntawm2.11mm 3(rau cov kav dej me me) mus txog30 hli +(rau loj txoj kab uas hla trunklines).
Piv txwv (rau 8-inch yeeb nkab):
NWS 40:8.18 hli (0.322 ")
TSI 80:12.70 hli (0.500 ")
Qhov txawv ntawm X42 thiab X52 yeeb nkab yog dab tsi?
Qhov sib txawv tseem ceeb ntawmX42thiabX52cev yog lawvzogthiabsiab muaj peev xwm.
Nov yog peb qhov sib txawv tseem ceeb:
Yield zog:
X42muaj qhov tsawg kawg nkaus yield zog ntawm42,000 psi(290 MPa).
X52muaj qhov tsawg kawg nkaus yield zog ntawm52,000 psi(360 MPa).
Qhov tshwm sim: X52 yog kwv yees li24% muaj zog duali x42.
Kev ntsuas siab:
Vim nws muaj zog dua, ibX52cov yeeb nkab tuaj yeem tswj tau ntau qhov siab hauv siab dua li X42 yeeb nkab ntawm tib qhov loj thiab phab ntsa tuab.
Project Efficiency (Wall Thickness):
Engineers feem ntau xaivX52kom txuag tau nyiaj ntawm steel. Vim X52 muaj zog dua, koj tuaj yeem siv aphab ntsa nyiaskom ua tiav tib lub siab ntsuas raws li qhov tuab, hnyav dua X42 yeeb nkab.
Lub siab ntsuas ntawm X52 yeeb nkab yog dab tsi?
Tsis muaj ib qho kev ntsuas siab rau X52 yeeb nkab. Nws muaj peev xwm nyob ntawm qhovTube loj (OD)thiabphab ntsa thickness, suav sivBarlow's Formula.
Txawm li cas los xij, vim X52 muaj qhov tsawg kawg nkaus tawm lub zog ntawm52,000 psi, nws yog tsim rausiab - kev pabcuam siab, feem ntau yog los ntawm1,000 psi mus tshaj 3,000 psinyob ntawm lub sijhawm.
Yuav ua li cas kwv yees qhov ntsuas siab:
Cov qauv siv los ntawm engineers yog:
P=(2⋅S⋅t⋅F)/D
S= Yield Strength (52,000 psi rau X52)
t= Phab ntsa thickness
D= Sab nraud txoj kab uas hla
F= Kev tsim qauv (kev nyab xeeb, feem ntau yog 0.72 rau roj / roj)
Piv txwv ntawm X52 Ua Haujlwm Siab (kwv yees ntawm 72% tsim qauv):
10-nti yeeb nkab (SCH 40 / 9.27mm phab ntsa):Kwv yees li.2,500 psi(172 bar).
12-nti yeeb nkab (SCH 40 / 9.53mm phab ntsa):Kwv yees li.2,150 psi(148 bar).
24-nti yeeb nkab (SCH 40 / 17.48mm phab ntsa):Kwv yees li.2,100 psi(145 bar).
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API 5L X52 PSL2 Roj Kis Kab YeebKoj Tseem Yuav Zoo Li
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