GB / T 9711.1 L290 yog tus qauv thiab dav muaj cov khoom siv tshwj xeeb rau kev tsim Kauv Submerged Arc Welded (SSAW) steel kav[siv: 1, citation: 3, citation: 5]. Qhov kev sib xyaw ua ke no yog cov khoom lag luam uas muaj los ntawm ntau lub tuam txhab Suav thiab thoob ntiaj teb rau nruab nrab - roj thiab roj xa mus, cov kav dej, thiab cov ntawv thov kev lag luam [citation: 3, citation: 7].
Lub npe "GB/T 9711.1 L290 Spiral Submerged Arc Pipe" ua ke ib qho nruab nrab - lub zog pipeline qib (L290) nrog rau tus qauv PSL1 qib zoo, tsim los siv cov txheej txheem kev lag luam spiral welding rau loj - daim ntaub ntawv txoj kab uas hla [citation: 1, citation: 5]. L290 yog ncaj qha sib npaug rauAPI 5L X42nyob rau hauv thoob ntiaj teb specifications [citation: 5, citation: 7, citation: 8].
📋 Cov ntsiab lus tseem ceeb rau GB / T 9711.1 L290 SSAW Yeeb Nkab
Cov lus hauv qab no qhia txog cov ntsiab lus tseem ceeb rau cov khoom no, raws li cov ntaub ntawv kev lag luam dav dav [citation: 1, citation: 2, citation: 3, citation: 5, citation: 7, citation: 8, citation: 9].
| Yam ntxwv | Kev piav qhia |
|---|---|
| Txuj | GB/T 9711.1: "Petroleum thiab natural gas industries - Steel pipelines - Technical delivery conditions - Part 1: Pipes of Requirement Class A" [citation:2, citation:6, citation:9]. |
| Qib zoo | Chav Kawm A (PSL1 sib npaug): Cov txheej txheem kev ua tau zoo nrog cov kev cai yooj yim (tsis muaj qhov yuav tsum tau kuaj xyuas, txwv tsis pub siv tshuaj lom neeg, lub zog tsawg kawg nkaus nkaus xwb) [citation: 2, citation: 6, citation: 9]. |
| Qib Steel | L290: Ib qho nruab nrab -lub zog pipeline steel qib. Lub "L" sawv cev rau "Line yeeb nkab," thiab "290" qhia qhov tsawg kawg nkaus tawm lub zog hauv MPa [citation: 1, citation: 5, citation: 9]. |
| International sib npaug | API 5L X42 (L290)[siv: 5, citation: 7, citation: 8]. |
| Kev tsim khoom | Spiral Submerged Arc Vuam (SSAW/HSAW): Ua los ntawm kub- dov steel coil, nrog cov vuam seam khiav tsis tu ncua nyob rau hauv ib tug kauv raws cov yeeb nkab ntev. Welded siv ob -sided tsis siv neeg submerged arc vuam [citation:1, citation:3, citation:10]. |
| Tshuaj muaj pes tsawg leeg (max %) [citation:1, citation:3, citation:7, citation:8] | Cov pa roj carbon (C):0.22-0.26% max Manganese (Mn):1.25-1.30% max Phosphorus (P):0.030% max Sulfur (S):0.030% max |
| Mechanical Properties (min) [citation: 1, citation: 3, citation: 5, citation: 9] | Yield zog:290 MPa (42,000 psi) Tensile zog:415 MPa (60,000 psi) Elongation:Nws txawv ntawm phab ntsa thickness (feem ntau ntau dua los yog sib npaug rau 20-23%) |
| Hom Loj Ntau Yam [citation: 3, citation: 5, citation: 10] | Sab nraud txoj kab uas hla:219mm txog 4064mm (kwv yees . 8" rau 160") Phab ntsa Thickness:3.2mm txog 50mm (ntau ntau 5-25mm) Ntev:3 m rau 18 m txheem; mus txog 50 m muaj rau cov ntawv thov tshwj xeeb |
| Cov Kev Ntsuas Tseem Ceeb [citation: 1, citation: 2, citation: 3, citation: 5] | Tshuaj ntsuam xyuas; xeem tensile; flattening xeem; khoov kuaj; hydrostatic test (txhua lub yeeb nkab); tsis yog- kuaj kev puas tsuaj (ultrasonic lossis X-ray ntawm vuam seam - qauv xyaum). Kev ntsuam xyuas cuam tshuam yogtsis xav taurau Class A (PSL1 sib npaug) [citation:2, citation:6, citation:9]. |
| Cov ntawv thov dav [citation: 3, citation: 5, citation: 7, citation: 8] | Nruab nrab- cov roj thiab cov kav xa hluav taws xob siab; natural gas sib sau ua ke kab; kev xa dej mains; industrial txheej txheem kav; kev siv cov qauv; piling foundations; chemical nruab nrab kis; fais fab engineering pipelines. |
| Daim ntawv pov thawj | Mill Test Certificate feem ntau rauEN 10204 Hom 3.1los yog sib npaug, nrog tag nrho cov txiaj ntsig kev xeem thiab cov ntaub ntawv txheeb xyuas tau [citation:3, citation:5]. |
📊 GB/T 9711.1 Qib Sib piv
L290 yog qhov nruab nrab - qib zog hauv GB / T 9711.1 specification. Cov lus hauv qab no qhia nws txoj hauj lwm txheeb ze rau lwm qib [citation: 2, citation: 4, citation: 5, citation: 6, citation: 9]:
| Qib | Yam tsawg kawg nkaus tawm lub zog (MPa) | Sib npaug API 5L Qib | Tus txheeb ze zog vs. L290 | Daim ntawv thov |
|---|---|---|---|---|
| L175 | 175 | A | -40% | Tsawg heev -kev sib sau ua ke, kua dej |
| L210 | 210 | A | -28% | Tsawg- dej siab, roj, kev pabcuam dav dav |
| L245 | 245 | B | -15% | General pipeline kev pabcuam - feem ntau |
| L290 | 290 | X42 | Lub hauv paus | Nruab nrab -siab kis |
| L320 | 320 | X46 | +10% | Nruab nrab -siab kis |
| L360 | 360 | X52 | +24% | General kis tau tus mob |
| L390 | 390 | X56 | +34% | Siab dua -siab kis |
| L415 | 415 | X60 | +43% | High -siab kis |
| L450 | 450 | X65 | +55% | Siab -siab, offshore |
| L485 | 485 | X70 | +67% | Ntev -qhov deb siab -siab |
| L555 | 555 | X80 | +91% | Ultra-siab- siab lub cev kab |
📏 Dimensional Specifications
GB/T 9711.1 qhia txog cov kev kam rau ua hauv qab no rau SSAW kav [citation:5, citation:10]:
| Parameter | Ua siab ntev |
|---|---|
| Sab nraud txoj kab uas hla | ± 0.75% ntawm txoj kab uas hla (nws txawv ntawm qhov loj me) |
| Phab ntsa Thickness | +15.0%, -12.5% ntawm nominal |
| Kev ncaj | Tsawg dua lossis sib npaug li 0.1% ntawm tag nrho qhov ntev |
| Ntev | +100mm / -0mm (rau qhov ntev ntev) |
Standard Diameter Range:219mm txog 4064mm (8 "mus rau 160") [citation: 3, citation: 5, citation: 10]
🔍 Cov ntsiab lus tseem ceeb kom nkag siab
Dab tsi "GB/T 9711.1 L290" txhais tau tias: Qhov no yog Suav teb tus qauv rau cov kav dej steel kav nrog cov kev cai yooj yim. L290 yog qhov nruab nrab - qib zog, nrog qhov tsawg kawg nkaus tawm lub zog ntawm290 MPa rau. Nws yog ncaj qha sib npaug rauAPI 5L X42 (L290)nyob rau hauv thoob ntiaj teb specifications [citation: 5, citation: 7, citation: 8].
Qib A (PSL1) Kev Ua Haujlwm Zoo: GB/T 9711.1 sawv cev rauA- qibCov kev xav tau zoo, zoo ib yam li API 5L PSL1 [citation: 2, citation: 6, citation: 9]. Cov yam ntxwv tseem ceeb muaj xws li:
Chemistry: Cov qauv txwv (C Tsawg dua lossis sib npaug rau 0.22-0.26%, Mn Tsawg dua lossis sib npaug 1.25-1.30%, S / P Tsawg dua lossis sib npaug 0.030%)
Lub zog: Tsuas yog qhov tsawg kawg nkaus tawm los thiab lub zog tensile tau teev tseg
Kev ntsuam xyuas cuam tshuam: Tsis xav tau los ntawm tus qauv [citation: 2, citation: 6, citation: 9]
Kev siv yam: Tsim nyog rau cov kev pabcuam dav dav hauv qhov chaw uas txhim kho toughness thiab kev tswj nruj dua tsis tsim nyog
L290 vs. Qib qis: L290 muab kwv yees li18% siab zog tawm los ntawm L245(290 MPa vs . 245 MPa), ua rau nws tus nqi - hloov kho tau zoo rau nruab nrab- cov ntawv thov kev sib kis uas muaj zog dua qib B yog xav tau [citation:2, citation:4].
SSAW Qhov Zoo rau L290: Cov txheej txheem welding muab cov txiaj ntsig tshwj xeeb rau cov kav loj - txoj kab uas hla [citation:3, citation:5, citation:10]:
Loj Loj Muaj peev xwm: Muaj peev xwm tsim cov kav dej mus txog 160 "inch
Nqi Efficiency: 20-30% tus nqi qis dua LSAW rau cov kab loj loj
Ntev ntev: Txog li 50m ntev txo cov kev xav tau ntawm kev vuam
Kev Nyuaj Siab: Kauv weld seam disperses kev ntxhov siab ntau tusyees dua ncaj seam
🔧 Kev Tsim Khoom Txheej Txheem rau GB / T 9711.1 L290 SSAW Yeeb Nkab
Cov txheej txheem tsim khoom ua raws li cov txheej txheem SSAW ntau lawm [citation: 1, citation: 3, citation: 5, citation: 10]:
Kev npaj raw khoom: Kub-khoov steel coils ntsib GB/T 9711.1 L290 chemistry yuav tsum tau leveled, soj ntsuam, thiab ntug-milled [citation:1, citation:3].
Kauv txoj kev: Cov hlau sawb txuas ntxiv tsim rau hauv cov duab cylindrical ntawm ib lub kaum ntse ntse tshwj xeeb ntawm chav tsev kub [citation: 1, citation: 3].
Submerged Arc Vuam: Ob chav -sided tsis siv neeg submerged arc vuam (sab hauv thiab sab nraud) tsim cov kauv seam nrog kev nkag mus tag nrho [citation: 1, citation: 3, citation: 10].
Tsis yog -Kev kuaj kev puas tsuaj: 100% ultrasonic lossis X-ray tshuaj xyuas ntawm cov vuam seam yog cov qauv kev coj ua [citation:3, citation:5].
Kev Ntsuas Hydrostatic: Txhua cov yeeb nkab ib leeg raug kuaj xyuas kom ntseeg tau tias siab ncaj ncees (Ntau dua lossis sib npaug rau 1.25 × tsim siab).
Mechanical Testing: Kev ntsuam xyuas tensile, kev ntsuam xyuas flattening, thiab khoov kuaj xyuas cov khoom [citation:1, citation:3].
Xaus Xaus: Xaus npaj (dawb los yog beveled) rau kev vuam .
Txheej: Cov txheej txheem sab nraud (FBE, 3LPE, thee tar epoxy, thiab lwm yam) thiab cov ntaub ntawv sab hauv raws li qhov xav tau rau kev tiv thaiv corrosion [citation: 3, citation: 5, citation: 8].
🏭 Daim ntawv thov
GB / T 9711.1 L290 SSAW kav yog siv dav hauv [citation: 3, citation: 5, citation: 7, citation: 8]:
| Daim ntawv thov | Kev piav qhia |
|---|---|
| Nruab nrab - Roj Hmab thiab Gas Transmission | Ntev - cov kav dej nyob deb rau cov roj av, roj av, thiab cov khoom ua kom zoo uas yuav tsum tau muaj zog dua qib B |
| Natural Gas Sib Sau Kab | Txuas qhov dej mus rau cov chaw ua haujlwm hauv nruab nrab - cov ntawv thov siab |
| Kev xa dej Mains | Loj - txoj kab uas hla hauv nroog thiab cov kav dej muaj |
| Muaj Txheej Txheem Piping | Chemical nruab nrab kis tau tus mob, fais fab engineering pipelines |
| Kev siv tus qauv | Piling, choj kev txhawb nqa, kev tsim kho tej yaam num |
| Offshore Pipelines | Haum rau cov ntawv thov offshore thiab complex ib puag ncig nrog kev tiv thaiv corrosion zoo |
| Kev txuag dej | Cov dej hauv nroog, kev ua liaj ua teb irrigation systems |
📝 Cov ntsiab lus tseem ceeb
Standard Version: GB/T 9711.1 tau hloov kho ntau xyoo (1997, 2008, 2011, 2017 versions). Thaum txiav txim, qhia lub xyoo yuav tsum tau (piv txwv li, GB / T 9711.1-2017) kom ua raws li cov cai tam sim no [citation: 5, citation: 10].
PSL1 vs PSL2: GB/T 9711.1 (Class A) yog sib npaug rau API 5L PSL1. Rau cov ntawv thov uas xav tau kev txhim kho toughness, nruj dua chemistry tswj, lossis kev pabcuam qaub, qhia meejGB/T 9711.2 (Class B/PSL2)nrog rau qib siab dua npe xws liL290M or X42M(TMCP) [siv: 5, citation: 7, citation: 8].
Kev ntsuam xyuas cuam tshuam: GB/T 9711.1 uatsis yogxav tau Charpy qhov kev ntsuam xyuas los ntawm tus qauv [citation: 2, citation: 6, citation: 9]. Yog tias qhov kev pabcuam kub tau qis dua -, xav txog kev ntsuas qhov cuam tshuam raws li qhov yuav tsum tau ua ntxiv lossis hloov kho rau PSL2.
Kev tiv thaiv corrosion: Rau qhov xav tau ib puag ncig, L290 cov kav dej tuaj yeem muab nrog ntau yam txheej txheej [citation: 3, citation: 5, citation: 8]:
3LPE (3-txheej polyethylene)rau faus cov kav dej
FBE (Fusion Bonded Epoxy)rau kev siv roj & roj
Epoxy txheejrau av noo, acid, thiab alkali ib puag ncig
International sib npaug: L290 yog ncaj qha sib npaug rau [citation:5, citation:7, citation:8]:
API 5L X42 (L290)
TS EN ISO 3183 L290
Ua kom tiav Specification: Thaum xaj, qhia [citation:3, citation:5, citation:8]:
GB/T 9711.1, Qib L290, SSAW (kauv welded), Loj (OD x WT), Ntev, Kawg Finish
Tus qauv version: [eg, GB/T 9711.1-2017]
Cov txheej txheem txheej: [piv txwv li, liab qab, FBE, 3LPE]
Txhua yam kev xav tau ntxiv (kev sim cuam tshuam yog tias xav tau)
📝 Cov ntsiab lus
GB/T 9711.1 L290 Kauv Submerged Arc Welded kavyog atus qauv, muaj dav, thiab tus nqi - xaiv tau zoorau nruab nrab- kev siv cov raj xa dej siab nyob rau hauv Suav teb tus qauv rau kev lag luam roj av thiab roj av [citation: 1, citation: 3, citation: 5, citation: 7, citation: 8]. Nrog yam tsawg kawg nkaus tawm lub zog ntawm290 MPa (42,000 psi)- sib npaug rau API 5L X42 - cov kav dej no muaj kwv yees li18% siab zog dua L245 (Qib B), ua rau lawv haum rau nruab nrab - cov roj thiab roj xa mus, sib sau cov kab, dej mains, thiab cov ntawv thov kev lag luam [citation:2, citation:4].
Muaj nyob rau hauv diameters los ntawm219mm txog 4000mmnrog phab ntsa thicknesses rau50 hlithiab ntev mus txog50m, cov kav dej no yog tsim los siv tus nqi- cov txheej txheem tsim khoom SSAW tau zoo thaum ua tau raws li cov kev cai nruj ntawm GB/T 9711.1 specification [citation:3, citation:5, citation:10].
GB / T 9711.1 Chav Kawm A (PSL1 sib npaug) yog tsim raunruab nrab nruab nrab- kev pabcuam xa hluav taws xob hauv huab cua sovqhov twg txhim kho toughness thiab nruj tswj tsis tsim nyog. Rau cov ntawv thov uas xav tau kev lees paub qis- qhov kub thiab txias, kev tswj cov tshuaj lom neeg nruj dua, lossis muaj peev xwm ua haujlwm qaub, xav txog kev kho dua tshiab rauGB / T 9711.2 (Class B / PSL2) nrog L290M lossis X42M (TMCP)qib [citation:5, citation:7, citation:8].
Thaum txiav txim, xyuas kom meej tias koj qhia meej cov qauv ua tiav nrog xyoo version, qib L290, txheej txheem tsim khoom (SSAW), qhov yuav tsum tau muaj, thiab cov txheej txheem los yog ntxiv raws li koj daim ntawv thov tshwj xeeb [citation: 3, citation: 5, citation: 8].
