API 5L X100 Carbon Steel Pipes Rau Roj Pipelines
API 5L X100 carbon steel kavyog lub siab - lub zog kav dej tsim los rau siab - siab thiab ntev - kev thauj mus los ntawm roj thiab roj, haum rau kev ua haujlwm hnyav xws li dej hiav txwv tob, huab cua txias, thiab siab sab hauv. Nws muaj qhov tsawg kawg nkaus lub zog ntawm 690 MPa thiab yog dav siv nyob rau hauv thoob ntiaj teb loj -scale zog tej yaam num.
Daim ntawv qhia tshwj xeeb rau API 5L X100 Roj thiab roj xa cov yeeb nkab
| Parameter | Tus nqi |
|---|---|
| Txuj | API 5L / ISO 3183, 46th Edition |
| Qib | X100 |
| Khoom Specification Level | PSL1 lossis PSL2 (PSL2 pom zoo rau cov ntawv thov tseem ceeb) |
| Hom kev tsim khoom | Seamless, LSAW (Longitudinal Submerged Arc Welded), SSAW (Spiral Submerged Arc Welded), ERW (Electric Resistance Welded) |
| Sab nraum txoj kab uas hla | 21.3 hli - 1524 mm |
| Phab ntsa Thickness Range | 2.0mm-50mm |
| Ntev | Tib Random Length (SRL), Ob Chav Random Length (DRL), Txiav - mus rau -Length |
| Kev Xa Khoom | M (Thermo-Mechanical Rolling), Q (Quenched & Tempered) |
Tshuaj muaj pes tsawg leeg ntawm API 5L X100 Carbon Steel Kab Yeeb
| Element | Cov ntsiab lus siab tshaj (%) | Sau ntawv |
|---|---|---|
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.16 | Tswj carbon sib npaug rau weldability |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.45 | Deoxidizer, txhim khu lub zog |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.90 | Txhim kho lub zog thiab toughness |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.020 | Cov khoom tsis zoo, nruj me ntsis txwv |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.010 | Tiv thaiv kub brittleness, stricter hauv PSL2 |
| Copper (Cu) | Tsawg dua los yog sib npaug li 0.50 | Tsis txhob txhob txwm ntxiv |
| Nickel (Ni) | Tsawg dua los yog sib npaug li 0.50 | Tsis txhob txhob txwm ntxiv |
| Chromium (Cr) | Tsawg dua los yog sib npaug li 0.50 | Tsis txhob txhob txwm ntxiv |
| Molybdenum (hli) | Tsawg dua los yog sib npaug li 0.50 | Tsis txhob txhob txwm ntxiv |
| Vanadium (V), Niobium (Nb), Titanium (Ti) | Tag Nrho Tsawg dua lossis sib npaug li 0.15% | Microalloying cov ntsiab lus rau grain refinement |
Mechanical Requirements API 5L X100 roj thiab roj pipelines
| Khoom | Kev xav tau |
|---|---|
| Yam tsawg kawg nkaus Yield Strength | 690 MPa ua(100,000 psi) |
| Tensile zog | 760-990 MPa |
| Yield-rau-Tensile Ratio | Tsawg dua lossis sib npaug li 0.97 |
| Elongation A50 hli | Ntau dua lossis sib npaug li 18% |
| Charpy V-Txoj kev cuam tshuam lub zog (0 degree) | Avg ntau dua los yog sib npaug rau 41J (ntev), Ntau dua lossis sib npaug rau 27J (transverse) |
| DWTT (Drop Weight Tear Test) | Shear Area Ntau dua lossis sib npaug li 75% (yuav tsum tau rau PSL2) |
Daim Ntawv Qhia Loj thiab Nyhav rau API 5L X100 pipeline rau roj thiab roj
| Sab nraud txoj kab uas hla (mm) | Phab ntsa Thickness (mm) | Nyhav ib Meter (kg / m) | Daim ntawv thov |
|---|---|---|---|
| 457 | 12.7 | 138.5 | Onshore trunk kab |
| 610 | 14.3 | 210.2 | Siab -pas kis tau tus mob |
| 813 | 17.5 | 342.1 | tob -sea pipelines |
| 1016 | 22.2 | 542.8 | Ultra-siab-siab ntev- thauj mus los |
Dimensional Tolerances rau API 5L X100 pipelines rau cov kua combustible
| Parameter | Tso cai Deviation |
|---|---|
| Sab nraud txoj kab uas hla | ± 1% ntawm OD |
| Phab ntsa Thickness | +12.5% / -10% |
| Ntev | +2% / -0% |
| Kev ncaj | Tsawg dua los yog sib npaug li 2 mm / m |
| Bevel Lub kaum sab xis | 30℃-35 degree |
| Hauv paus ntsej muag | 1.6 ± 0.8 hli |
Qhov txawv ntawm PSL1 thiab PSL2
| Feature | PSL1 | PSL2 |
|---|---|---|
| Tshuaj muaj pes tsawg leeg | General tswj | Kev txwv nruj dua ntawm C, P, S |
| Mechanical Properties | Cov kev cai yooj yim | Siab zog thiab toughness pib |
| Kev ntsuam xyuas cuam tshuam | Tsis yuam | Yuav tsum tau ntawm 0℃(Charpy V-notch) |
| Tsis yog -Kev kuaj kev puas tsuaj | Qauv | 100% Ultrasonic + Radiographic kuaj |
| Traceability | Txuj | Tag nrho cov txheej txheem traceability |
| Daim ntawv thov | General onshore pipelines | Offshore, siab -siab, kev pabcuam qaub |
Kev Ntsuas Cov Txheej Txheem rau API 5L X100 Seamless Steel Pipes
Tensile Test: Txheeb xyuas lub zog tawm los, lub zog tensile, thiab elongation.
Charpy V-Ntch Impact Test: Ntsuas qis-kub toughness; yam tsawg kawg nkaus 41J ntawm 0℃(longitudinal).
DWTT (Drop Weight Tear Test): Txheeb xyuas qhov tawg propagation kuj; shear cheeb tsam Ntau dua lossis sib npaug li 75%.
Hydrostatic Test: Ua rau txhua lub kav dej; siab dua los yog sib npaug rau 2 × tsim siab, tuav rau 5 vib nas this.
Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT):
Kev kuaj ultrasonic (UT): 100% longitudinal thiab transverse flaw nrhiav pom.
Kev ntsuas hluav taws xob (RT): 100% kev soj ntsuam vuam (rau cov kav dej welded).
HIC/SSC Corrosion Resistance Test: Rau kev pabcuam qaub (ib NACE MR0175 / ISO 15156).
Metallographic Analysis: Paub meej tias microstructure (piv txwv li, bainite, martensite ratio).
API LSAW Pipe Factory
FAQ
Cov qib API 5L yog dab tsi?
Cov qib steel ntau ntawm API 5L cov ntaub ntawv suav nrog Gr. B,X42, X46, X52, X56, X60, X65, X70, X80, X100, thiab X120, qhov twg tus lej tom qab "X" sawv cev rau qhov tsawg kawg nkaus yield zog ntawm qib steel (hauv kilopounds ib square inch, ksi). Piv txwv li, qhov tsawg kawg nkaus tawm lub zog ntawm X65 yog 65 ksi (kwv yees li 448 MPa)
Qhov txawv ntawm API 5L thiab ASTM yog dab tsi
Qhov tseem ceeb sib txawv ntawm API 5L thiab ASTM nyob rau hauv lawv cov kev siv thiab kev ua haujlwm tsom: API 5L yog tus qauv tsim tshwj xeeb rau cov roj thiab cov kav xa hluav taws xob, hais txog kev ua haujlwm tag nrho ntawm cov kav hlau steel nyob rau hauv qhov siab, qhov ntev, thiab qhov chaw nyuaj (xws li kub qis thiab corrosion), nrog tshwj xeeb tshwj xeeb ntawm weldability, toughness, thiab tawg propagation resistance. Nws yog dav siv hauv kev hla - ciam teb pipeline engineering.
ASTM yog ib qho khoom siv thoob ntiaj teb tus qauv uas suav nrog ntau yam xwm txheej kev lag luam. Piv txwv li, ASTM A106 feem ntau yog siv rau cov kav dej ruaj khov uas muaj qhov kub thiab txias (xws li cov chaw tsim khoom thiab cov chaw tsim hluav taws xob), thiab tsom mus rau ntau yam tshuaj lom neeg muaj pes tsawg leeg thiab cov khoom siv tshuab ntawm nws tus kheej, tsis hais txog kev txheeb xyuas kev ntseeg tau ntawm - qhov chaw tsim kho thiab kev ua haujlwm ntev -.
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