API 5L PSL1 Qib B ERW Steel Yeeb Nkab
Lub ntsiab lus tseem ceeb
API 5L PSL1 Qib B ERW (Electric Resistance Welded) steel yeeb nkabyog ib qho ntawm feem ntau thiab dav siv kab yeeb nkab specifications hauv kev lag luam roj thiab roj. Nws yog tsim los rau pipeline tsheb thauj mus los systems conveying roj, roj, thiab dej nyob rau hauv onshore thiab offshore daim ntaub ntawv.
Lub npe lov raws li hauv qab no:
API 5L: American Petroleum Institute specification rau kab yeeb nkab
PSL1: Khoom Specification Qib 1 (tus qauv zoo nrog cov kev cai yooj yim)
Qib B: Feem ntau carbon steel qib nrog yam tsawg kawg nkaus yield zog ntawm35,000 psi (241 MPa)
ERW: Hluav taws xob Resistance Welded - yeeb nkab tsim los ntawm steel kauj thiab welded longitudinally yam tsis muaj muab tub lim
Cov ntsiab lus tseem ceeb
| Parameter | Specification |
|---|---|
| Txuj | API 5L (46th Edition, raws li ISO 3183) |
| Khoom Specification Level | PSL1 |
| Qib | B (L245) |
| Hom kev tsim khoom | ERW (Electric Resistance Welded) |
| Qhov Loj (OD) | 1/2 "mus rau 24" (21.3mm txog 610mm) |
| Phab ntsa Thickness | SCH 10, SCH 20, SCH 40, SCH STD, SCH 80 txog SCH 160 |
| Ntev | Ib qho random ntev, ob chav random ntev, 20 ft, 40 ft, 5-12 m |
| Xaus Xaus | Plain xaus, beveled xaus |
Tshuaj muaj pes tsawg leeg (PSL1)
| Element | Ntau tshaj % |
|---|---|
| Cov pa roj carbon (C) | 0.26-0.28% |
| Manganese (Mn) | 1.20% |
| Phosphorus (P) | 0.030% |
| Sulfur (S) | 0.030% |
| Silicon (Si) | 0.40% (max) |
Nco tseg: PSL2 Qib B muaj kev txwv nruj dua (C Tsawg dua lossis sib npaug rau 0.24%, S Tsawg dua lossis sib npaug rau 0.015%, P Tsawg dua lossis sib npaug li 0.025%).
Mechanical Properties (PSL1)
| Khoom | Yam tsawg kawg nkaus |
|---|---|
| Yield zog | 241-245 MPa (35,000-35,500 psi) |
| Tensile zog | 414-415 MPa (60,000-60,200 psi) |
| Elongation | Ib API 5L lub rooj (nws txawv ntawm phab ntsa thickness) |
Dimensional Tolerances
| Parameter | Qhov Loj | Ua siab ntev |
|---|---|---|
| Lub cev OD | Txhua qhov ntau thiab tsawg | ±0.75% |
| Cov yeeb nkab kawg (219.1-273.1 hli) | - | +1.6 hli / -0.4 hli |
| Cov yeeb nkab kawg (274-320 mm) | - | +2.4 hli / -0.8 hli |
| Cov yeeb nkab kawg (323.9-457 mm) | - | +2.4 hli / -0.8 hli |
| Phab ntsa Thickness (508-610mm) | - | +17.5% / -12.5% |
Kev xeem yuav tsum tau
| Hom kev xeem | Kev xav tau |
|---|---|
| Tshuaj ntsuam xyuas | Rau qhov kub ntau |
| Tensile Test | Ib qho ntau - txheeb xyuas cov txiaj ntsig thiab lub zog tensile |
| Flattening Test | Yuav tsum tau rau ERW yeeb nkab |
| Khoov Test | Yuav tsum muaj rau kev txheeb xyuas qhov tseeb ntawm weld |
| Hydrostatic Test | Txhua lub yeeb nkab tau kuaj ib tus zuj zus |
| NDT (Ultrasonic / Eddy Tam sim no) | Weld seam soj ntsuam tus qauv kev coj ua |
| Impact Testing (Charpy V-notch) | Tsis xav tau rau PSL1- Tsuas yog PSL2 yuav tsum tau kuaj qhov cuam tshuam |
Cov ntawv thov siv
| Daim ntawv thov | Kev piav qhia |
|---|---|
| Roj thiab roj kis tau tus mob | Sib sau cov kab, cov kab ntws, nruab nrab - cov kav dej siab |
| Natural Gas Distribution | Tsawg mus rau nruab nrab - siab roj network |
| Kev xa dej | Municipal thiab industrial dej mains |
| Industrial Piping | Txheej txheem piping hauv refineries thiab chemical nroj tsuag |
| Kev siv tus qauv | Piling, kev txhawb nqa, kev tsim kho |
PSL1 vs. PSL2: Qhov txawv tseem ceeb rau qib B
| Feature | PSL1 | PSL2 |
|---|---|---|
| Cov pa roj carbon (C) max | 0.26-0.28% | 0.24% |
| Sulfur (S) max | 0.030% | 0.015% (50% txo) |
| Yield zog | Yam tsawg kawg nkaus xwb | Min thiab Max (245-450 MPa) |
| Yield-rau-Tensile Ratio | Tsis tau teev tseg | Tsawg dua los yog sib npaug rau 0.93 max |
| Kev ntsuam xyuas cuam tshuam | Tsis xav tau | Yuav tsum tau |
| NDT Requirements | Txuj | nruj dua |
| Traceability | Batch qib | Pipe -los ntawm- yeeb nkab puv traceability |
Qhov Zoo Tshaj Plaws
| Qhov zoo | Kev piav qhia |
|---|---|
| Tus nqi -Cov | ERW txheej txheem muab kev lag luam tsim khoom rau qhov ntau thiab tsawg txog 24 " |
| Weldability zoo heev | Tswj chemistry ua kom zoo teb weldability |
| Dav Muaj | Feem ntau stocked los ntawm manufacturers thoob ntiaj teb |
| Pov thawj Performance | Ntau xyoo ntawm kev siv tau zoo hauv kev siv cov raj xa dej |
| Daim ntawv pov thawj dual | Feem ntau dual{0}} ntawv pov thawj nrog ASTM A53 Gr B thiab ASTM A106 Gr B |
Kev txiav txim siab tseem ceeb
1. Kev txwv qhov loj
ERW manufacturing feem ntau txwv rau24 nti (610 mm) OD
Cov kab uas loj dua yuav tsum tau LSAW lossis SSAW manufacturing
2. PSL1 vs. PSL2 Xaiv
PSL1: Haum rau kev pabcuam dav dav, cov kab dej, tsis yog - cov ntawv thov tseem ceeb
PSL2: Yuav tsum tau muaj rau cov kev pabcuam kub tsawg, kev pabcuam qaub (H₂S ib puag ncig), cov kav dej tswj (FERC, DOT), thiab cov ntawv thov tseem ceeb
3. Qib sib npaug
TS EN ISO 3183: L245
ASTM A53: Qib B (zoo ib yam)
ASTM A106 1: Qib B (zoo ib yam)
GB/T 9711: L245
4. Txheej txheej xaiv
Dub (dawb): Txheem zeb tiav
FBE (Fusion Bonded Epoxy): Corrosion tiv thaiv rau faus pipelines
3LPE (3-txheej polyethylene): Rau cov ntawv thov faus
Varnish/Anti- xeb roj: Kev tiv thaiv ib ntus thaum thauj
5. Mill Test Certificate
Feem ntau muab raws liEN 10204 Hom 3.1Bnrog tag nrho cov kev xeem
Thib peb-kev tshuaj ntsuam xyuas (SGS, BV, Lloyds) muaj nyob rau ntawm kev thov
Cov ntsiab lus
API 5L PSL1 Qib B ERW steel yeeb nkabyog tus qauv workhorse rau kab siv cov yeeb nkab, sawv cev rau feem ntau siv specification rau roj, roj, thiab dej xa mus kav. Nrog yam tsawg kawg nkaus tawm lub zog ntawm35,000 psi (241 MPa)thiab tensile zog ntawm60,000 psi (414 MPa), nws muaj qhov sib npaug zoo ntawm lub zog, weldability, thiab tus nqi - ua tau zoo rau ntau yam kev siv .
Cov txheej txheem tsim khoom ERW muab qhov zoo ib yam thiab qhov tseeb ntawm qhov ntau thiab tsawg24 nti (610 mm) ODnrog cov phab ntsa thicknesses los ntawm Teem caij 10 mus txog Teem caij 160 . PSL1 qib zoo muaj cov txheej txheem tsim nyog rau kev pabcuam dav dav, thaum PSL2 qib muaj rau cov ntawv thov tseem ceeb uas yuav tsum tau ua kom muaj zog thiab nruj dua kev tswj xyuas.
Thaum ordering, qhia:API 5L PSL1 Qib B ERW steel yeeb nkab, Qhov Loj (OD x WT), Ntev, Xaus Xaus, thiab Txheej Txheej Txheem .
