Qhov txawv ntawmAPI 5L X60thiabAPI 5L X65feem ntau yog lawvzog. Ob leeg yog siab -cov kab yeeb nkab muaj zog siv rau kev thauj cov roj thiab roj, tab sis X65 yog tsim los tswj cov kev kub siab dua nrog cov phab ntsa uas muaj peev xwm thinner dua X60.
Nyob rau theem ntawm lub zog no (X60 thiab siab dua), cov kav dej feem ntau yog tsim los rauPSL 2(Product Specification Level 2) cov qauv vim tias lawv tau siv rau hauv qhov tseem ceeb, siab -siab infrastructure.
Mechanical Properties (Qhov txawv ntawm Core)
Cov lej "60" thiab "65" yog hais txog qhov Tsawg Tshaj Tawm Lub Zog hauv kilopounds ib square inch (ksi).
| Khoom | API 5L X60 | API 5L X65 | Qhov txawv |
| Min Yield zog | 60,200 psi (415 MPa) | 65,300 psi(450 MPa) | X65 yog ~ 8.5% muaj zog dua |
| Min Tensile zog | 75,400 psi (520 MPa) | 77,600 psi(535 MPa) | X65 yog ~ 3% muaj zog |
| Max Yield/Tensile Ratio | 0.93 (rau PSL 2) | 0.93 (rau PSL 2) | Tib qhov piv txwv |
Kev cuam tshuam Engineering:Vim tias X65 muaj zog dua, tus kws tshaj lij tuaj yeem tsim cov kav dej nrog aphab ntsa nyiastuav tib lub siab sab hauv. Hauv 500-mais cov kav dej, txo cov phab ntsa tuab los ntawm 1 hli tuaj yeem txuag tau ntau txhiab tons ntawm cov hlau, txo cov khoom siv thiab cov nqi thauj mus los.
Tshuaj muaj pes tsawg leeg
Txhawm rau ua kom lub zog ntawm X60 mus rau X65 yam tsis ua rau cov hlau nkig lossis nyuaj rau vuam, cov tuam txhab siv "Micro-alloying."
X60:Siv cov txheej txheem ntawm Manganese thiab Carbon, nrog me me ntawm Niobium (Nb) lossis Vanadium (V).
X65:Yuav tsum tau txawm ntau meej tswj ntawm lubCarbon sib npaug (CE). Nws feem ntau siv kev sib xyaw ua ke ntawm Niobium, Vanadium, thiab Titanium (Nb + V + Ti) los kho cov qauv nplej. Qhov kev ua kom zoo ntawm cov nplej no tso cai rau cov hlau kom muaj zog dua thaum tswj siabtawv(tsis kam mus tawg).
Weldability thiab Hardness
Weldability:Raws li lub zog nce, vuam ua me ntsis rhiab dua. X65 xav tau cov txheej txheem vuam ntau dua thiab kev tswj xyuas nruj dua "cov khoom siv hluav taws xob" kom ntseeg tau tias Heat Affected Zone (HAZ) tsis dhau los yog tawv heev.
Hardness:Rau PSL 2 kav dej (tshwj xeeb tshaj yog rau Sour Service), qhov hardness feem ntau capped ntawm248 HWV 10(22 HRC). X65 yog ze rau qhov kev txwv no dua li X60, txhais tau tias cov txheej txheem tsim khoom yuav tsum tau tswj nruj dua kom tsis txhob muaj cov hlau tsis hnyav dhau.
Kev Siv Ib puag ncig
X60:Feem ntau suav hais tias yog "tus qauv" rau loj - txoj kab uas hla onshore natural gas kis kab. Nws muaj qhov sib npaug zoo ntawm lub zog siab thiab yooj yim teb weldability.
X65:Nquag xaiv rauOffshore (Subsea) pipelinesthiab siab heev -siab onshore trunklines. Nyob rau hauv ib puag ncig offshore, qhov hnyav ntawm cov yeeb nkab yog qhov tseem ceeb rau qhov nteg -barge; thinner, muaj zog X65 yeeb nkab yog yooj yim los lis thiab nruab rau hauv dej tob.
Lub rooj sib piv
| Feature | API 5L X60 | API 5L X65 |
| Qib Siab | Siab zog | Siab zog |
| Thawj Qhov Zoo | Standard high -siab siv | Kev txuag qhov hnyav tshaj plaws |
| Phab ntsa Thickness | Txuj | Thinner (rau tib lub siab) |
| Micro{0}} alloying | Nb/V | Nb + V + Ti (Grain refined) |
| Siv dav | Onshore Gas Mainlines | Offshore & HPHT Pipelines |
API 5L High Yield Carbon Steel Pipes Hoobkas
API 5L pipeline rau roj thiab roj Test equipments
API 5L roj thiab roj pipelines Certificate
FAQ
API 5L X60 sib npaug rau ASTM yog dab tsi?
API 5L X60 tsis muaj qhov sib npaug ASTM ncaj qha; Txawm li cas los xij, hauv qee qhov xwm txheej engineering, nws cov khoom siv tshuab ua kom pom kev ua haujlwm sib tshooj nrog ASTM A106 Qib B. X60 nta lub zog qis kawg nkaus ntawm 415 MPa thiab lub zog tensile ntawm Ntau dua lossis sib npaug li 520 MPa, tau tsim tshwj xeeb rau kev siab - siab, ntev - deb ntawm cov kav dej. Hauv qhov sib piv, A106 Qib B muaj lub zog tawm los ntawm tsuas yog 240 MPa thiab lub zog tensile ntawm Ntau dua lossis sib npaug li 415 MPa, tsom feem ntau ntawm siab - kub, siab - siab boiler thiab refining systems. Ob tus qauv ua haujlwm rau lub hom phiaj sib txawv: X60 ua qhov tseem ceeb ntawm qhov toughness thiab weldability, thaum A106 hais txog qhov siab - qhov kub thiab txias. Yog li ntawd, lawv tsis hloov pauv; Txawm li cas los xij, nyob rau hauv me me - txoj kab uas hla, qis - kev ua haujlwm siab, ib qho tuaj yeem ua haujlwm tsis yog - tus qauv hloov pauv rau lwm qhov.
Dab tsi yog phab ntsa thickness ntawm API 5L X65 yeeb nkab?
API 5L X65 tsis muaj cov phab ntsa ruaj khov; nws yog txiav txim los ntawm cov yeeb nkab loj thiab lub sij hawm (piv txwv li, Sch 40/80) los yog kev cai engineering rau tej pressures. Nws lub zog siab tso cai rau cov phab ntsa nyias dua li cov qib qis, txo qis steel qhov hnyav thiab cov nqi vuam. Tus qauv kam rau ua yog feem ntau ± 10% rau welded thiab -12.5% rau +15% rau seamless kav.
