C90-1 OCTG Casing
API 5CT C90 Hom 1 Casingyog ib qho siab -lub zog, tswj- qib steel qib tshwj xeeb tsim los rauSour Service (H2S ib puag ncig). Nws belongs rau Pawg 2 ntawm API 5CT specification. Qhov "Type 1" xaiv yog hais txog ib qho tshwj xeeb Cr-Mo (Chromium-Molybdenum) alloy uas yogQuenched thiab Tempered (Q + T)kom ua tiav cov qauv martensitic tag nrho. Qhov no ua kom muaj kev tiv thaiv siab tshaj plaws rauSulfide Stress Cracking (SSC), ua rau nws tseem ceeb rau qhov tob, siab -siab, thiab qaub roj thiab roj qhov dej.
Mill{0}} Tus nqi ncaj qha rauC90 Cas: Hwm Sour Service Quality Tsis muaj Trading Markups.Tau txais ib nqe lus Hnub no.
API 5CT C90 Hom 1 Casing Xim Code
Kev txheeb xyuas yog qhov tseem ceeb rau kev ua haujlwm hauv cheeb tsam los tiv thaiv kev sib xyaw ua ke.
| Qib | Pipe Lub Cev Xim Band | Coupling Xim Xim | Band ntawm Coupling |
| C90 Hom 1 | Ib Pluag Band | Ntshav | Tsis muaj(Tshuaj Ntshav) |
API 5CT C90 Hom 1 Roj Zoo Casing Yeeb Nkab Chemical Composition (%)
C90 yuav tsum muaj siab hardenability los xyuas kom meej cov khoom sib xws los ntawm phab ntsa thickness.
| Element | Kev xav tau (%) | Lub hom phiaj |
| Cov pa roj carbon (C) | 0.15 – 0.35 | Lub zog thiab hardenability |
| Manganese (Mn) | 0.40 – 1.20 | Deoxidizer thiab lub zog |
| Chromium (Cr) | 0.80 – 1.50 | Corrosion thiab SSC kuj |
| Molybdenum (hli) | 0.15 – 0.85 | Temper embrittlement tsis kam |
| Phosphorus (P) |
Tsawg dua los yog sib npaug0.020 |
Tsawg impurities |
| Sulfur (S) |
Tsawg dua los yog sib npaug0.010 |
Tseem ceeb rau Sour Service |
| Nickel (Ni) |
Tsawg dua los yog sib npaug0.25 |
Txwv kom tiv thaiv SSC rhiab heev |
| Silicon (Si) |
Tsawg dua los yog sib npaug0.45 |
Deoxidizer |
API 5CT C90-1 Casing & Tubing Tensile & Hardness Requirements
Lub qhov rais yield zog yog nqaim kom cov khoom muaj zog tsis tau ductile txaus rau kev pab qaub.
| Khoom | Imperial Units | Metric Units |
| Yield zog (Min) | 90,000 psi | 621 MPa ua |
| Yield zog (Max) | 105,000 psi | 724 MPa ua |
| Tensile zog (Min) | 100,000 psi | 689mpa ua |
| Max Hardness | 25.4 TSI | 255 HBW / 270 HV |
| Hardness Variation (Max) | 3.0 TSI | -- |
API 5CT C90 Hom 1 Casing Tolerance Table
| Yam khoom | Ua siab ntev |
| Sab nraud Diameter (OD) |
Tsawg dua lossis sib npaug Less dua lossis sib npaug 4-1/2":±± 0.031" |>> 4-1/2 ": -0.5% rau +1.0% |
| Phab ntsa Thickness | -12.5% (Tsis muaj kev txwv siab) |
| Qhov hnyav (ib leeg sib koom) | -3.5% rau +6.5% |
| Sab hauv Diameter (ID) | Tswj los ntawm OD thiab Phab Ntsa Thickness |
| Kev ncaj |
Tsawg dua lossis sib npaug Less dua lossis sib npaug 0.2% ntawm tag nrho qhov ntev |
API 5CT C90 Hom 1 Casing Connections
C90 yog siv rau hauv cov qhov dej tseem ceeb, feem ntau yuav tsum muaj siab -kev sib khi.
| Hom kev sib txuas | Cov ntawv luv | Siv Case |
| Luv Round Xov | STC | Standard qhov dej ntiav |
| Ntev Round Xov | LTC | Feem ntau rau C90 casing |
| Buttress Xov | BTC | Siab nro / qhov tob tob |
| Hwm Kev Sib Txuas | VAM / Tenaris / Fox | Gas-cov ntsaws ruaj ruajrau siab -siab qaub qhov dej |
Qib C90 Hom 1 Casing Dimensions thiab Weight Chart (Common Size)
| OD (Inches) | Qhov hnyav (lb / ft) | Phab ntsa Thickness (hauv) | Drift Diameter (hli) |
| 4-1/2" | 13.50 | 0.290 | 3.795 |
| 5-1/2" | 17.00 | 0.304 | 4.767 |
| 7" | 26.00 | 0.362 | 6.151 |
| 7" | 29.00 | 0.408 | 6.059 |
| 9-5/8" | 47.00 | 0.472 | 8.525 |
| 9-5/8" | 53.50 | 0.545 | 8.379 |
API 5CT C90 Hom 1 Casing rau Sour Service Specification
Cov lus no qhia txog cov txheej txheem kev lag luam rau kev yuav khoom.
| Technical Parameter | Specification Tus nqi |
| Txuj | API Spec 5CT / ISO 11960 |
| NACE ua raws | MR0175 / ISO 15156-2 |
| Pawg Khoom | Pawg 2 (Controlled Yield Strength) |
| Kev kho cua sov | Quenched thiab Tempered (Q + T) |
| Txheej txheem ntawm kev tsim khoom | Seamless (SML) nkaus xwb |
| Khoom Spec | PSL-1 (Std), PSL-2, lossis PSL-3 (High Quality) |
| Kev ntsuam xyuas cuam tshuam | Yuav tsum Charpy V-Notch (CVN) |
Kev Ntsuas & Kev Ntsuam Xyuas ntawm API 5CT C90 Hom 1 Casing
Kev lees paub zoo yog ntau dua rau C90 dua li cov qauv J55 / K55 qib.
| Txoj Kev Xeem | Kev xav tau | Ntau zaus |
| Hydrostatic Test | Txheeb xyuas cov dej xau- nruj nruj | 100% ntawm cov kav dej |
| Kev kuaj Hardness | Yuav tsum tau Max 25.4 HRC | 100% ntawm cov kav dej (tom kawg) |
| Kev xeem SSC | NACE TM0177 (Method A) | Ib qho cua sov / Ib qho ntau |
| Ultrasonic (UT) | Tag nrho lub cev phab ntsa thickness / tsis xws luag scan | Yuav tsum tau (PSL2/PSL3) |
| Sib nqus Particle | Surface defect tshuaj xyuas | Yuav tsum tau rau qhov xaus / xov |
| Loj Loj | ASTM E112 (Yuav tsum yog cov hmoov nplej zoo) | Ib zaug rau cua sov |
GNEE API OCTG Pipe Test thiab tshuaj xyuas
GNEE API OCTG Yeeb Nkab Hoobkas
FAQ
octg yeeb nkab txhais li cas?
OCTG (roj lub teb chaws tubular khoom) yog hais txog cov khoom sib sau ua ke ntawm cov khoom siv hlau, feem ntau hu ua cov kav dej, thiab ntau yam khoom siv nrog. Qhov no tuaj yeem muaj cov laum, casing lossis tubing kav, xov tiv thaiv, stabbing guides, bumper rings, thiab yeeb nkab chocks.
Dab tsi yog qhov txawv ntawm casing thiab tubing hauv Octg?
OCTG kav dej muaj ob lub ntsiab ntawm cov khoom: casing thiab tubing.Tubing yog cov yeeb nkab uas nqa cov roj thiab roj los ntawm av mus rau qhov chaw. Casing yog cov yeeb nkab uas tiv thaiv kev ncaj ncees ntawm lub qhov dej thiab tiv thaiv cov txheej txheem hauv av.
Dab tsi yog qhov sib txawv ntawm cov kav dej Octg?
OCTG feem ntau suav nrog peb hom tseem ceeb:casing, tubing, thiab laum yeeb nkab. Casing stabilizes lub qhov dej thiab cais cov txheej txheem hauv av sib txawv, tubing thauj cov roj thiab roj rau saum npoo, thiab cov kav dej laum txuas cov laum me ntsis rau lub rig thaum xa cov torque thiab cov dej drilling.
Cim npe nrov: c90-1 octg casing, Tuam Tshoj c90-1 octg casing manufacturers, lwm tus neeg, Hoobkas
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