API 5L X60 Electric Resistance Welded (ERW) yeeb nkab
Lub ntsiab lus tseem ceeb
Standard specification rauhluav taws xob kuj welded steel kab yeeb nkabhauv qabAPI 5Lspecification.Qib X 60yog asiab -lub zog pipeline steeldav siv nyob rau hauv cov roj thiab roj kis tau tus mob, nrog ib tug tsawg kawg nkaus yield zog ntawm60,000 psi (415 MPa) .
Lub npe piav qhia
| Ib feem | Lub ntsiab lus |
|---|---|
| API | Lub koom haum American Petroleum |
| 5L | Specification rau kab yeeb nkab |
| X60 | Qib npe –X= qib pipeline,60= yam tsawg kawg nkaus tawm lub zog hauv ksi (60,000 psi) |
| Hluav taws xob Resistance Welded | Cov txheej txheem tsim khoom - cov yeeb nkab tsim los ntawm coil thiab welded longitudinally |
Cov yam ntxwv tseem ceeb ntawm X60 ERW Yeeb Nkab
| Feature | Kev piav qhia |
|---|---|
| Hom khoom | Carbon Steel(micro{0}} alloyed) |
| Kev tsim khoom | Hluav taws xob Resistance Welded (ERW)- longitudinal weld seam tam sim no |
| Khoom Specification Levels | PSL1los yogPSL2(PSL2 muaj nruj dua chemistry, yuav tsum tau kuaj qhov cuam tshuam) |
| Cov khoom tseem ceeb | Zoo heev tshuav ntawmsiab zog, toughness, thiab weldability |
| Hom kab | 21.3mm txog 660mm(1/2 "mus rau 26") - ERW |
| Hom Phab Ntsa Thickness | 1.8mm txog 22.2mm |
Chemical Composition (Maximum%)
| Lub ntsiab | PSL1 (Tsis muaj) | PSL1 (welded) | PSL2 (welded) |
|---|---|---|---|
| Cov pa roj carbon (C) | 0.28 | 0.26 | 0.22 |
| Manganese (Mn) | 1.40 | 1.40 | 1.40 |
| Phosphorus (P) | 0.030 | 0.030 | 0.025 |
| Sulfur (S) | 0.030 | 0.030 | 0.015 |
| Vanadium (V) | 0.15 max | 0.15 max | Raws li pom zoo |
| Niobium (Nb) | 0.05 max | 0.05 max | Raws li pom zoo |
| Titanium (Ti) | 0.04 max | 0.04 max | 0.04 max |
Qhov chaw:
Nco tseg:Rau txhua qhov kev txo qis ntawm 0.01% hauv qab cov ntsiab lus siab tshaj plaws, qhov nce ntawm 0.05% saum toj no cov ntsiab lus siab manganese tau tso cai, nce mus txog 1.50% rau X60 .
Mechanical Properties
| Khoom | Kev xav tau |
|---|---|
| Yield zog (Min) | 415 MPa (60,000 psi) |
| Tensile zog (Min) | 520 MPa (75,000 psi) |
| Elongation | Nws txawv ntawm phab ntsa thickness (yam tsawg kawg nkaus ~ 28%) |
Qhov chaw:
Lub Sij Hawm Sib Piv: X60 vs. Cov Kab Yeeb Nkab Sib Txuas
| Qib | Yield zog Min (MPa/ksi) | Tensile zog Min (MPa/ksi) | Txoj hauj lwm |
|---|---|---|---|
| X52 | 360 / 52 | 460 / 67 | Tsawg zog |
| X56 | 390 / 56 | 490 / 71 | Nruab nrab |
| X60 | 415 / 60 | 520 / 75 | Siab zog |
| X65 | 450 / 65 | 535 / 77 | Siab zog |
| X70 | 485 / 70 | 570 / 82 | Ultra{0}}lub zog siab |
Qhov chaw:
Cov ntawv thov siv
| Daim ntawv thov cheeb tsam | Kev siv tshwj xeeb |
|---|---|
| Roj & Roj | Ntev -cov roj thiab cov kav xa hluav taws xob |
| Kev thauj mus los | Natural gas sib sau ua ke thiab faib kab |
| Kev tuav dej | Dej, slurry, thiab chav thauj khoom |
| Kev lag luam | Petrochemical cog piping |
| Offshore | Subsea pipelines thiab kev siv marine |
| Cov qauv tsim | Mechanical and structural applications (furniture, building, choj) |
ERW Manufacturing txheej txheem
ERW kav dej yog tsim los ntawm:
Kev tsim:Hlau kauj yog txias- ua rau hauv ib lub cylindrical zoo.
Vuam:Cov npoo yog rhuab los ntawmsiab - zaus hluav taws xob tsis kamthiab forged ua ke nyob rau hauv siab.
Kev kho cua sov:Weld seam thiab tshav kub- thaj tsam cuam tshuam yog cua sov- kho kom simulate ib qho kev kho cua sov.
NDT:Weld seam yog100% tsis yog- kuaj kev puas tsuaj(ultrasonic los yog eddy tam sim no).
Qhov zoo ntawm ERW:
Tus nqi qis duatshaj seamless yeeb nkab
Zoo heev qhov tseeb(Qhov tseeb OD thiab phab ntsa thickness)
Ntev ntevmuaj (txog 18m)
High efficiency ntau lawm
Qhov Loj Muaj
| Txoj kev tsim khoom | Qhov Loj | Sau ntawv |
|---|---|---|
| ERW | 21.3mm txog 660mm(1/2 "mus rau 26") | Feem ntau rau X60 txog 24-26 " |
| Seamless | 1 "mus rau 14" (tus qauv) | Rau kev sib piv |
| LSAW | 14 "mus rau 60" (tus qauv) | Rau qhov loj dua |
Qhov chaw:
PSL1 vs PSL2 rau X60
| Yam | PSL1 | PSL2 |
|---|---|---|
| Chemistry | Txheem txwv | Kev tswj nruj dua(qis C, P, S) |
| Lub zog | Min tsuas qhia | Min thiab Maxteev |
| Kev ntsuam xyuas cuam tshuam | Tsis xav tau | Yuav tsum tau(qhov kub thiab txias) |
| Carbon sib npaug | Tsis xav tau | Muab xam thiab tswj |
| Kev siv yam | Kev pabcuam dav dav | Kev pabcuam tseem ceeb, kev pabcuam qaub, qis kub |
Txheej & Kev Tiv Thaiv Kev Xaiv
X60 ERW yeeb nkab feem ntau muab nrog:
| Txheej hom | Daim ntawv thov |
|---|---|
| Dub(Pob zeb tiav) | Txheem sab hauv tsev / saum av |
| 3LPE (3-txheej polyethylene) | Feem ntau yog rau cov kav dej faus |
| FBE (Fusion Bonded Epoxy) | Kev tiv thaiv corrosion |
| Coal Tar Epoxy | Heavy-lub luag haujlwm tiv thaiv |
| Varnish txheej / Anti- xeb roj | Kev tiv thaiv ib ntus |
| Bitumen txheej | Kev pabcuam faus |
International Standard Equivalents
| Txuj | Qib sib npaug |
|---|---|
| API 5L | X60 |
| TS EN ISO 3183 | L415 |
| DNV OS{0}}F101 | Qib 450 |
| CSA Z245 | Qib 415 |
| GB/T 9711 | L415 |
Kev Lag Luam Lub Luag Haujlwm & Kev Xaiv Logic
X60 sawv cev rau qeb "siab- zog" hauv kab yeeb nkab tsev neeg:
| Qib Siab | Qib | Kev siv yam |
|---|---|---|
| Tsawg | A, B | Tsawg-siab, tsis yog- tseem ceeb |
| Nruab nrab | X42, X46, X52 | General kis tau tus mob |
| Siab | X60, X65 | High -siab kis tau tus mob, offshore |
| Ultra -High | X70, X80 | Dej tob, arctic, siab -efficiency |
Thaum xaiv X60:
Rau siab - roj thiab roj xa mus kav
Thaum tsim siab tshaj X52 muaj peev xwm
Rau kev siv offshore thiab subsea
Rau cov ntawv thov kev pabcuam qaub (thaum teev raws li PSL2 nrog kev sim ntxiv)
Thaum lub zog siab dua - rau - qhov hnyav piv yog xav tau los txo cov nqi khoom
Fabrication & Weldability
| Yam | Kev xav tau |
|---|---|
| Weldability | Zoo heevvim tswj chemistry thiab qis carbon sib npaug |
| Field Vuam | Cov txheej txheem tsim nyog yuav tsum tau ua, tshwj xeeb tshaj yog rau PSL2 |
| Preheat | Tej zaum yuav xav tau rau cov phab ntsa tuab nyob ntawm qhov sib npaug ntawm cov pa roj carbon |
| Khoov | Yuav ua tau txias- teb khoov tsis pub dhau qhov txwv |
| Kev kho cua sov | X60 tej zaum yuav normalized, quenched, thiab tempered raws li xav tau |
Kev xeem & ntawv pov thawj
X60 ERW yeeb nkab feem ntau undergoes:
| Hom kev xeem | Lub hom phiaj |
|---|---|
| Tshuaj ntsuam xyuas | Xyuas kom meej muaj pes tsawg leeg raws li specifications |
| Tensile Test | Paub meej tias yield thiab tensile zog |
| Flattening Test | Tshawb xyuas ductility |
| Khoov Test | Txheeb xyuas qhov kev ntseeg ntawm weld |
| Impact Test | Charpy V-notch (yuav tsum tau rau PSL2) |
| Hydrostatic Test | Txheeb xyuas qhov ntsuas siab |
| NDT (Ultrasonic / Eddy Tam sim no) | Tshawb xyuas qhov tsis xws luag |
| Hardness Test | Thaum teev rau kev pabcuam qaub |
Mill Test Certificate:EN 10204/3.1B feem ntau muab
Thaum kawg Takeaway: API 5L X60 ERW Tubeyog asiab -lub zog welded kab yeeb nkabtsim los rau kev thov siv roj thiab roj kis tau tus mob. Nrog qhov tsawg kawg nkaus tawm lub zog ntawm60,000 psi (415 MPa), nws muab kev txhawb zog rausiab -cov kav dej siab, kev teeb tsa sab nraud, thiab cov kev pabcuam tseem ceebqhov twg X52 tsis txaus. Muaj nyob rau hauv ob qho tib si PSL1 thiab PSL2 qib zoo, nws muab qhov sib npaug zoo ntawmlub zog, toughness, thiab weldabilityrau niaj hnub pipeline systems.
