API 5L X46 PSL2 H2S Resistant LSAW (Longitudinal Submerged Arc Welded) Cov yeeb nkab steel yog qib siab - cov kab yeeb nkab tshwj xeeb uas tsim los rau cov roj qaub thiab cov pa roj. Tsim nyob rau hauv nruj raws li API 5L 45th tsab qauv, cov yeeb nkab no nta nruj qis -sulfur thiab qis-phosphorus tshuaj muaj pes tsawg leeg, zoo heev hydrogen-induced cracking (HIC) kuj thiab sulfide stress cracking (SSC) tsis kam, siab adapting rau hnyav corrosive hydrogen sulfide ua hauj lwm ib puag ncig.
Cov yeeb nkab sab nraud yog nruab nrog hwm 3LPE (3- Txheej Polyethylene) los tiv thaiv- txheej txheej corrosion, uas muab kev ua haujlwm zoo tshaj plaws ntawm kev ua haujlwm corrosion tiv thaiv av corrosion, seawater yaig thiab atmospheric oxidation, uas yog dav siv rau onshore thiab offshore roj & gas kis pipelines.
PIPE MANUFACTURING PROCESS (LSAW)
Cov yeeb nkab yuav tsum tau tsim los ntawm daim hlau los ntawm kev sib sau txias siv covUOE lossis JCOE txheej txheemthiab
yuav tsum muaj ib tug longitudinal seam ua los ntawm tsis siv neeg Submerged Arc Vuam txheej txheem. Cov
longitudinal weld seam yuav tsum muaj tsawg kawg yog ib qho dhau los ntawm sab hauv thiab tsawg kawg yog ib qho dhau los
nyob sab nraud.
Ua kom tiav Technical Parameters
1. Basic Standard & Qib
Tus Qauv Txheej Txheem: API 5L 45th Edition
Steel Qib: X46
Specification Qib: PSL2
Kev Pabcuam Hom: Sour Service (H2S Resistant)
Kev tsim khoom: LSAW (Longitudinal Submerged Arc Vuam)
Anti-Corrosion Hom: Sab nrauv 3LPE Txheej
2 Mechanical Properties
|
Yam khoom |
Txheem tus nqi |
Kev Xeem Xeem |
|---|---|---|
|
Yam tsawg kawg Yield Strength |
317MPa (46ksi) |
Raws li API 5L X46 tus qauv |
|
Tensile zog |
434-655MPa |
Uniform thiab kev ua haujlwm ruaj khov |
|
Elongation |
Ntau dua lossis sib npaug li 18% |
Tsim nyog rau pipeline dabtsi yog khoov thiab deformation kuj |
|
Charpy V-Ntch Impact Energy |
Ntau dua lossis sib npaug rau 27J (-10 degree) |
Yuav tsum muaj tag nrho - ntsuas qhov kub thiab txias rau PSL2 |
|
Anti-kev ua haujlwm tawg |
HIC & SSC Resistant |
Dhau qhov kev pabcuam qaub rau kev xeem |
3 Chemical Composition (Max, %)
|
C |
Si |
Mn |
P |
S |
Ni |
Cr |
|---|---|---|---|---|---|---|
|
0.26 |
0.40 |
1.40 |
0.020 |
0.003 |
0.30 |
0.30 |
KEV KAWM
1. Kev xeem rau daim hlau:
Dimensional Tolerances
3PE Quality Index ntawm buried Steel Pipeline
| DIN 30670; 2012-04 Polyethylene Txheej tsim los ntawm cov yeeb nkab | |||||||||||||||||||||
| Txheej Thickness |
DN (mm) | FBE hmoov (µm) |
Adhesive (µm) | Txheej yam tsawg kawg nkaus thickness (mm) | |||||||||||||||||
| 250<> | Ntau dua lossis sib npaug li 60 | Ntau dua lossis sib npaug li 140 | 3.5 hli ± 0.5mm | ||||||||||||||||||
| FBE hmoov Txheej Index |
Qeb | Performance Index | |||||||||||||||||||
| Particle loj (%) | Oversize hmoov (150 µm) Tsawg dua lossis sib npaug li 3.0 Oversize hmoov (250 µm) Tsawg dua lossis sib npaug li 0.2 |
||||||||||||||||||||
| Volatile (%) | Tsawg dua lossis sib npaug li 0.6 | ||||||||||||||||||||
| Lub sijhawm gel (200 degree) (s) | Ntau dua lossis sib npaug li 12 | ||||||||||||||||||||
| Lub sijhawm kho (200 degree) (min) | Tsawg dua los yog sib npaug 3 | ||||||||||||||||||||
| Fusion- sib raug zoo Epoxy |
Adhesion (qib) | Tsawg dua los yog sib npaug 2 | |||||||||||||||||||
| Cathodic Disbondment (23℃/ 28d, 60℃/ 2d) | Tsawg dua los yog sib npaug li 7 | ||||||||||||||||||||
| Adhesive Kev ua tau zoo Index |
Qhov ceev (g / cm3) | 0.92-0.95 | |||||||||||||||||||
| Melt flowrate 190 degree, 2.16kg (g / 10min) | Ntau dua lossis sib npaug li 0.7 | ||||||||||||||||||||
| Vicat softening kub (degree) | Ntau dua lossis sib npaug li 90 | ||||||||||||||||||||
| iav hloov kub (degree) | Tsawg dua los yog sib npaug rau -50 | ||||||||||||||||||||
| Polyethylene Khoom siv tshwj xeeb Index |
Qhov ceev (g / cm3) | 0.94-0.96 | |||||||||||||||||||
| Melt flowrate 190 degree, 2.16kg (g / 10min) | Ntau dua lossis sib npaug li 0.15 | ||||||||||||||||||||
| Cov pa roj carbon dub (%) | Ntau dua lossis sib npaug rau 2.0 | ||||||||||||||||||||
| Thaum tshav kub kub | ΔMFR + 35% | ||||||||||||||||||||
| Polyethylene Txheej Index |
Elongation ntawm Break (%) | Ntau dua lossis sib npaug li 400 | |||||||||||||||||||
| Indentation hardness (mm) |
S (Type S) | 23 degree | Tsawg dua los yog sib npaug li 0.2 | ||||||||||||||||||
| 70 degree | Tsawg dua los yog sib npaug li 0.4 | ||||||||||||||||||||
| Chav tsev txheej tiv thaiv (23℃+ 2 degree) | Ntau dua lossis sib npaug li 108 Ώ m2 | ||||||||||||||||||||
| UV aging kuj | ΔMFR + 35% | ||||||||||||||||||||
| Anticorrosive Txheej Index |
Peel zog (N / cm) |
23 degree | (Hom N) | (Hom S) | |||||||||||||||||
| 100 | 150 | ||||||||||||||||||||
| N 50 degree, S 70 degree | 20 | 30 | |||||||||||||||||||
| Cathodic disbondment (hli) | (23℃/ 28d lossis 60℃/ 2d) Tsawg dua lossis sib npaug li 7 hli | ||||||||||||||||||||
| (23℃+ 2 degree) Kev cuam tshuam (J / mm) | Ntau dua lossis sib npaug li 5 | Ntau dua lossis sib npaug 7 | |||||||||||||||||||
| Tsawg- kub cuam tshuam lub zog (-20℃+ 2℃) (J / mm) | (-20℃+ 2℃) Ntau dua lossis sib npaug li 5 | (-40℃+ 2℃) Ntau dua lossis sib npaug rau 7 | |||||||||||||||||||
FAQ
Q1: Qhov txawv ntawm API 5L X46 PSL2 thiab PSL1 kav dej yog dab tsi?
A1: PSL2 yog qib khoom tshwj xeeb tshaj li PSL1. Nws yuav tsum muaj kev tswj xyuas cov tshuaj tiv thaiv nruj dua (tsawg dua sulfur thiab phosphorus cov ntsiab lus), yuav tsum muaj tag nrho - qhov ntsuas kub ntawm qhov ntsuas kub, kev sim nruj dua tsis muaj kev puas tsuaj thiab cov qauv kev kam rau siab. PSL2 cov kav dej muaj qhov tawv zoo dua, kev tiv thaiv corrosion thiab kev nyab xeeb ntawm kev ua haujlwm, uas yog qhov tseem ceeb rau kev pabcuam qaub thiab siab -cov roj & roj xa mus rau cov haujlwm, thaum PSL1 tsuas yog tsim nyog rau cov pa qis - kev pheej hmoo ua haujlwm.
Q2: H2S tiv taus / qaub qhov kev pab cuam txhais li cas rau cov yeeb nkab no?
A2: Cov yeeb nkab no yog tsim tshwj xeeb rau cov kav dej uas muaj cov roj hydrogen sulfide. Los ntawm ultra-cov mis tsis muaj tshuaj lom neeg tsis zoo thiab cov txheej txheem kev kho cua sov, nws tuaj yeem tiv thaiv hydrogen-induced cracking (HIC) thiab sulfide stress cracking (SSC), zam cov kav dej xau thiab rupture tsis ua hauj lwm los ntawm H2S corrosion, thiab yog haum rau qaub roj thiab roj av kev loj hlob thiab kis tau tus mob tej yaam num.
Q3: Dab tsi yog qhov zoo ntawm 3LPE tiv thaiv -corrosion txheej?
A3: 3LPE yog qhov tseem ceeb tshaj plaws hauv siab - qib tiv thaiv - cov txheej txheem corrosion rau roj thiab cov kav dej. Peb - txheej txheej txheej txheem muaj ultra- kev sib koom ua ke siab thiab kev ua haujlwm ntawm rwb thaiv tsev, zoo cais cov av, noo noo thiab corrosive media. Nws nta hnav tsis kam, cuam tshuam tsis kam, tiv thaiv - kev laus thiab kev pabcuam lub neej ntev, uas tuaj yeem txo cov nqi kho kav dej thiab txuas ntxiv tag nrho lub neej kev pabcuam ntawm cov kav dej.
Q4: Koj puas txhawb nqa cov lus qhia tshwj xeeb rau kev xa tawm mus rau Myanmar?
A4: Yog. Peb muaj cov khoom ruaj khov thiab muaj peev xwm tsim tau rau 10-nti thiab 20-nti API 5L X46 PSL2 H2S resistant LSAW kav, uas yog cov feem ntau siv specifications rau Myanmar roj thiab roj pipeline tej yaam num. Peb txhawb FOB, CIF thiab lwm yam kev lag luam, muab cov txheej txheem export ntoo pallet ntim thiab ua tiav cov ntaub ntawv tshem tawm kev lis kev cai, thiab muaj kev paub tab logistics rau Myanmar.
Q5: Cov ntawv pov thawj zoo dab tsi koj tuaj yeem muab tau?
A5: Peb tuaj yeem muab API 5L daim ntawv pov thawj, daim ntawv pov thawj khoom pov thawj Hoobkas (MTC), HIC / SSC los tiv thaiv- daim ntawv tshaj tawm kev ntsuas tshuaj tiv thaiv kab mob, 3LPE txheej tshuaj xyuas daim ntawv qhia, daim ntawv qhia txog cov cuab yeej cuab tam thiab tag nrho cov ntaub ntawv pov thawj xa tawm kom tau raws li Myanmar hauv zos kev lis kev cai clearance thiab qhov yuav tsum tau txais kev pom zoo.
Q6: Koj puas tuaj yeem kho cov phab ntsa thickness, ntev thiab txheej txheej?
A6: Yog. Raws li tus qauv 10-inch thiab 20-inch specifications, peb tuaj yeem kho cov yeeb nkab phab ntsa tuab, ib lub yeeb nkab ntev, txheej thickness thiab lwm yam tsis raws li cov neeg siv khoom yuav tsum tau ua, thiab muab cov kev ua haujlwm ntawm tus kheej thiab kev tiv thaiv corrosion.
Peb qhov chaw nyob
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