API 5L X52 PSL2 FBE Coated Kab Pipes

X52 PSL2 roj pipeline yeeb nkab belongs rau steel qib kev faib tawm hauv American Petroleum Institute (API) cov qauv, thiab muab faib ua seamless yeeb nkab thiab welded yeeb nkab raws li cov txheej txheem tsim. Hauv API 5L thiab GB / T9711 tus qauv, nws cov qib steel sib xws yog L360 lossis X52.

Corrosion{0}}Resistant X52 PSL2 FBE Coated Pipes:Engineered rau South America's Harsh Terrains.

Technical Specifications ntawm API 5L X52 PSL2 Carbon Steel Kab Yeeb

Chemical Composition Design: Art of Performance Balancing

Cov tshuaj lom neeg muaj pes tsawg leeg ntawm X52 (L360) yog tsim los ua kom muaj zog weldability, formability, thiab ib puag ncig adaptability thaum ua tau raws li qhov yuav tsum tau muaj zog:

• Tsawg Carbon (C) Base: Feem ntau tswj nyob rau hauv thaj tsam ntawm 0.16% -0.22% (qhov tshwj xeeb sab sauv yog nyob ntawm cov txheej txheem tsim khoom thiab tuab). Cov pa roj carbon tsawg yog qhov tseem ceeb ntawm kev ua haujlwm zoo ntawm weldability thiab txo qhov cuam tshuam rau qhov txias txias.
• Manganese (Mn) Strengthening: Raws li cov ntsiab lus ntxiv dag zog (feem ntau yog li ntawm 1.25% mus rau 1.50%), nws muaj txiaj ntsig zoo txhim kho lub zog thiab tawv tawv los ntawm cov khoom siv ntxiv dag zog, ib feem them rau lub zog poob los ntawm cov pa roj carbon tsawg.
• Silicon (Si) Deoxidation: Tsim nyog ntxiv (feem ntau Tsawg dua lossis sib npaug li 0.45%) ua kom cov purity ntawm cov hlau molten thiab ua rau muaj zog ntxiv.

Strict Impurity Control:

• Phosphorus (P): Qhov tseem ceeb deteriorates toughness thiab weldability; nruj tswj kom tsawg dua los yog sib npaug rau 0.025%.
• Sulfur (S): Yooj yim tsim sulfide inclusions, ua mob toughness, HIC tsis kam, thiab weld hlaws tawg tsis kam; nruj me ntsis tswj kom tsawg dua los yog sib npaug rau 0.015% (cov kev cai nruj dua nyob rau hauv acidic ib puag ncig).

Microalloying Essence (Qhov txawv qhov tseem ceeb):

• Niobium (Nb): Ib qho tseem ceeb microalloying keeb, ua tau zoo - nplej ntxiv dag zog los ntawm inhibiting austenite recrystallization thiab refining theem transformation microstructure, ho txhim kho qhov sib npaug ntawm lub zog thiab toughness.
• Vanadium (V): Pab txhawb zog, pab txhawb cov nag lossis daus.
• Titanium (Ti): Feem ntau siv los kho nitrogen, tsim TiN los ua kom zoo li - nrum microstructure thiab tiv thaiv Nb los ntawm oxidation ntau dhau thaum nruam nruam.
• Cov Lus Teb Tshwj Xeeb Ib puag ncig: Rau qhov chaw ua haujlwm acidic (muaj H2S ntub), kev tswj hwm nruj ntawm cov pa roj carbon sib npaug (Ceq / Pcm) thiab hardenability yuav tsum, thiab cov ntsiab lus ntawm cov ntsiab lus xws li tooj liab (Cu) thiab npib tsib xee (Ni) yuav raug txwv kom ua tau raws li HIC / SSC cov kev cai tiv thaiv.

Core Mechanical Properties: Lub neej ntawm Pipeline Safety

Lub zog Foundation:

• Yield Strength (Rt0.5): Ntau dua lossis sib npaug rau 360 MPa (52,000 psi) - Lub hauv paus tseem ceeb rau kev suav cov raj xa dej, kom ntseeg tau tias muaj kev tiv thaiv siab.
• Tensile Strength (Rm): 460 - 570 MPa (67, 000 - 83,000 psi) - Muab lub zog tsim nyog los tiv thaiv kev puas tsuaj ntau dhau. Cov txiaj ntsig - rau - qhov sib piv tensile (Rt0.5 / Rm) feem ntau yog tswj nyob rau hauv qhov tsim nyog (kwv yees li 0.78-0.85) kom ntseeg tau tias muaj peev xwm deformation yas.

Plasticity thiab Deformation Peev Xwm:

Elongation (A): Ntau dua lossis sib npaug li 21% (tus nqi ib txwm nyob ntawm 50mm ntsuas qhov ntev) - Kev elongation siab ua kom cov kav dej tsis zoo rau kev deformation (xws li av subence, geological kev puas tsuaj), kev ntxhov siab redistribution, thiab tawg ntes.

Toughness Assurance - Resistance to Brittle Fracture and Crack Arrest:

• Charpy V-Notch Impact Energy (CVN): Yuav tsum tau ua kom tau raws li qhov nruab nrab qhov nruab nrab thiab tus nqi ntawm tus kheej ntawm 0℃lossis qis dua qhov ntsuas kub (piv txwv li, -10 degree, -20 degree) (tus nqi tshwj xeeb nyob ntawm qhov project qhov kub tsim). Qhov no yog qhov tseem ceeb rau kev tiv thaiv kev puas tsuaj ntawm cov kav dej ntawm qhov kub thiab txias los yog cuam tshuam.
• Tee Weight Tear Test (DWTT): Tshwj xeeb yog ib qho tseem ceeb rau loj - txoj kab uas hla, siab - cov kav dej siab. Yuav tsum muaj qhov feem pua ​​​​ntawm cheeb tsam shear (SA%) Ntau dua lossis sib npaug li 85% ntawm qhov kub thiab txias (xws li, -5℃lossis -15℃) (ib qho yuav tsum tau ua). Kev ua tau zoo ntawm DWTT yog qhov tseem ceeb rau kev ua kom nrawm nrawm nrawm tom qab pib cov kav dej hauv cov kav dej ntev, tiv thaiv kev sib tsoo ntawm kev sib tsoo.
• Hardness Control: Typically requires Vickers hardness (HV10) <= 248 or Brinell hardness (HB) <= 232. Limiting hardness is essential to preventing cold cracking in welds and meeting SSC resistance requirements in acidic environments.

API 5L X52 PSL2 Pipeline FBE Anti-Txoj kev kho corrosion:

Nto Pretreatment:

Kev txhaj tshuaj blasting yog siv los tshem tawm xeb thiab nplai los ntawm cov yeeb nkab steel nto.

Standard: Yuav tsum tau uaISO 8501-1 Sa 2.5 qib. Qhov saum npoo yuav tsum muaj ze li ntawm - xim hlau xim dawb thiab tsim cov khoom thauj tog rau nkoj qhov tob ntawm 40-100μm txhawm rau txhim kho txheej adhesion.

Kev tshuaj xyuas thiab ntxuav hauv online:

Lub siab - cua siab yog siv los tshuab cov khoom seem uas seem, thiab cov ntsiab lus ntsev saum npoo yog kuaj kom ntseeg tau tias tsis muaj cov kab mob sib kis.

Nruab nrab-Frequency Induction Cua sov:

Cov yeeb nkab steel yog uniformly rhuab mus rau 180℃- 230℃. Qhov ntsuas kub no yog qhov ntsuas kub zoo rau epoxy hmoov kom yaj thiab kho.

Electrostatic Txau:

• Epoxy hmoov yog them los ntawm rab phom tsuag thiab sib npaug adsorbed rau ntawm cov yeeb nkab rhuab saum npoo. Cov hmoov melts, ntws, thiab kho thaum cua sov.
• 300-500 μm.

Dej -Cov Curing:

Tom qab txau, cov yeeb nkab steel dhau los ntawm cov dej -txoj kev txias, tso cai rau cov txheej txheem kom tawv sai thiab ncav cuag lub xeev ruaj khov.

Soj ntsuam xyuas:
100% puv -kab tshuaj xyuas. Lub tshuab hluav taws xob hluav taws xob hluav taws xob (feem ntau teem rau 2000V-2500V) yog siv. Txawm tias ib tug pinhole tsis pom ntawm qhov muag liab qab yuav raug kuaj pom thiab kho.

Khoov kev ntsuam xyuas thiab kev ntsuam xyuas cathodic disbondment xyuas kom cov txheej yuav tsis tev tawm hauv cov polar lossis underwater ib puag ncig.

Pipe End Processing API 5L X52 PSL2 FBE pipeline

Beveling:

• Standard: Raws li API 5L tus qauv, cov yeeb nkab kawg feem ntau beveled ntawm 30℃(+5℃, -0 degree), nrog lub hauv paus ntsej muag ntawm kwv yees li 1.6mm.
• Lub Hom Phiaj: Txhawm rau kom muaj kev nkag mus rau vuam txaus thaum lub sijhawm ntawm - qhov chaw pob tw welding, lav tias cov khoom siv ntawm cov khoom sib koom ua ke zoo ib yam nrog cov yeeb nkab lub cev.

Txiav rov qab:

FBE txheej tsis npog rau sab saum toj ntawm cov yeeb nkab. Feem ntau, 50mm-150mm liab qab steel cheeb tsam yog sab laug ntawm txhua qhov kawg.

Lub hom phiaj: Txhawm rau tiv thaiv qhov kub thiab txias thaum lub sij hawm vuam los ntawm scorching lub anti-corrosion txheej thiab kom yooj yim clamping nrog vuam clamps.

Ntim Cov Txheej Txheem ntawm API 5L X52 PSL2 Epoxy Coated Pipe

Thaum FBE (Fused-Bound Epoxy Powder) txheej muaj zog corrosion kuj, nws kuj yog nkig thiab raug rau kev puas tsuaj los ntawm kev cuam tshuam loj heev thiab khawb. Yog li ntawd, nws cov ntim tshwj xeeb yog feem ntau siab dua li cov tubing dub zoo tib yam.

Pab pawg los ntawm Loj:
Qhov Loj me me (feem ntau <8"): Hexagonal Bundles yog siv. Txhua lub pob yog ruaj nrog cov hlua hlau, thiab txheej tiv thaiv (xws li roj hmab los yog duab los qhia) muab tso rau hauv cov hlua hlau los tiv thaiv cov hlua hlau los ntawm kev puas tsuaj rau FBE txheej.
Txoj kab uas hla loj (feem ntau ntau dua lossis sib npaug li 10 "): Cov ntim xoob yog siv.Txhua lub raj yog sib cais, thiab cov ntaub qhwv roj hmab lossis cov hlua khi hlua khi feem ntau muab tso rau ntawm cov raj txhawm rau tiv thaiv kev puas tsuaj rau cov txheej thaum thauj.

Kev Tiv Thaiv Kawg:
Tube Caps: Siab- lub kaus mom yas muaj zog lossis cov ntsaws ntsaws ntsaws ruaj ruaj yuav tsum tau siv los tiv thaiv dej nag, dej hiav txwv xuab zeb, thiab tsiaj me los ntawm lub raj.

Kev Tiv Thaiv Beveling: Siv xeb-cov roj tiv thaiv (Varnish) rau lub bevel thiab nruab steel tiv thaiv los tiv thaiv kev ua haujlwm hnyav ntawm South American ports.

Lifting Reinforcement:

Nylon slings yog muab rau txhua pob los yog txhua lub yeeb nkab. Kev sib cuag ncaj qha ntawm cov hlua hlau thiab cov yeeb nkab lub cev yog nruj me ntsis txwv tsis pub tiv thaiv kev ncaj ncees ntawm FBE txheej.

Kev thauj mus los ntawm API 5L X52 PSL2 pipeline rau roj thiab roj:

Kev xa khoom los ntawm Tuam Tshoj lossis lwm thaj chaw mus rau South America (xws li Santos, Brazil / Valparaiso, Chile / Buenaventura, Colombia) feem ntau siv sijhawm 45-60 hnub.

Thawv Thauj Khoom (20GP / 40HC):

Cov xwm txheej siv tau: Kev txiav txim me me lossis cov kav hlau steel nrog cov kab me me (feem ntau tsawg dua 11.8 meters ntev).

Reinforcement Requirements: Kev nruj ntoo bracing yog yuav tsum tau. Tag nrho cov ntoo siv raws li ISPM 15 tus qauv (kev kho fumigation).

Breakbulk Vessel Transportation:
Haum rau: Loj - ntim qhov project xaj, los yog cov kav dej uas muaj qhov loj thiab qhov ntev tshaj li 12 meters.

Kev Xaiv Cia: Xaiv qhov hauv qab - lawj rau kev cia kom tsis txhob raug tshav ntuj (UV hluav taws xob tuaj yeem ua rau FBE txheej laus thiab tsis muaj xim) thiab ncaj qha dej hiav txwv ntws.

Txhim khu kev qha X52 PSL2 FBE Pipes rau LATAM:Hiav txwv -Npaj ntim & Tshwj xeeb chaw nres nkoj xa khoom.

FAQ

API 5L X52 sib npaug yog dab tsi?

Raws li cov tshuaj muaj pes tsawg leeg, txhua yam khoom thiab lwm yam kev sib piv cov ntaub ntawv, API 5L X52 sib npaug phaj khoom yogL360 hlau, uas feem ntau yog ua rau L360 steel daim hlau los yog L360 steel kav siv nyob rau hauv cov roj av thiab roj kev lag luam rau pipeline tsheb thauj mus los.

Lub zog ntawm X52 khoom yog dab tsi?

Qib X52 qhia52000 PSI yam tsawg kawg nkaus yield zog thiab 66000 PSI yam tsawg kawg nkaus tensile zog.

Dab tsi yog qhov ceev ntawm st52 steel?

A St 52 Steel Qib yog tsim los nrog qhov ntom ntom ntawm7,85g 3thiab muaj ib tug hardness ntawm Brinell 180.

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