GB / T 9711.1 L320 yog tus qauv thiab dav muaj cov khoom siv tshwj xeeb rau kev tsim Kauv Submerged Arc Welded (SSAW) steel kav[siv: 1, citation: 4, citation: 6]. 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 - cov roj thiab cov pa xa hluav taws xob, cov kav dej, thiab cov ntawv thov kev lag luam [citation: 1, citation: 3, citation: 6].
Lub npe "GB/T 9711.1 L320 Spiral Submerged Arc Pipe" ua ke nruab nrab - lub zog kav dej qib (L320) nrog 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: 6]. L320 yog ncaj qha sib npaug rauAPI 5L X46nyob rau hauv thoob ntiaj teb specifications [citation:1, citation:2, citation:10].
📋 Cov ntsiab lus tseem ceeb rau GB / T 9711.1 L320 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: 6, citation: 7, citation: 8, citation: 10].
| Yam ntxwv | Kev piav qhia |
|---|---|
| Txuj | GB/T 9711.1: "Petroleum and natural gas industries - Steel pipelines - Technical delivery conditions - Part 1: Pipes of requirement class A" [citation:3, 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 muaj kev cuam tshuam kev sim, cov qauv chemistry txwv, lub zog tsawg kawg nkaus nkaus xwb) [citation: 1, citation: 2, citation: 4]. |
| Qib Steel | L320: Ib qho nruab nrab -lub zog pipeline steel qib. Lub "L" sawv cev rau "Line yeeb nkab," thiab "320" qhia qhov tsawg kawg nkaus tawm lub zog hauv MPa [citation: 1, citation: 6, citation: 7]. |
| International sib npaug | API 5L X46 (L320)[citation: 1, citation: 2, citation: 10]. |
| 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:6]. |
| Tshuaj muaj pes tsawg leeg (max %) [citation:1, citation:2, citation:10] | Cov pa roj carbon (C):0.26% max Manganese (Mn):1.40% max Phosphorus (P):0.030% max Sulfur (S):0.030% max Nb+V+Ti:Tsawg dua lossis sib npaug li 0.15% (thaum micro-alloyed) |
| Mechanical Properties (min) [citation: 1, citation: 7] | Yield zog:320 MPa (46,400 psi) Tensile zog:435 MPa (63,100 psi) Elongation:Ntau dua lossis sib npaug li 20% (nws txawv ntawm phab ntsa thickness) |
| Hom Loj Ntau Yam [citation: 1, citation: 3, citation: 5, citation: 6] | 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: 6, citation: 8] | 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:1, citation:2, citation:4]. |
| Common Applications [citation: 1, citation: 3, citation: 6, 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; loj -tej dej faib tej yaam num; municipal dej muab. |
| 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 taug qab [citation:5, citation:6]. |
📊 GB/T 9711.1 Qib Sib piv
L320 yog qhov nruab nrab- qib zog hauv GB/T 9711.1 specification, nyob nruab nrab ntawm L290 (X42) thiab L360 (X52). Cov lus hauv qab no qhia nws txoj hauj lwm txheeb ze rau lwm qib [citation:1, citation:2, citation:4, citation:9]:
| Qib | Yam tsawg kawg nkaus tawm lub zog (MPa) | Sib npaug API 5L Qib | Tus txheeb ze zog vs. L320 | Daim ntawv thov |
|---|---|---|---|---|
| L175 | 175 | A | -45% | Tsawg heev -kev sib sau ua ke, kua dej |
| L210 | 210 | A | -34% | Tsawg- dej siab, roj, kev pabcuam dav dav |
| L245 | 245 | B | -23% | General pipeline kev pabcuam - feem ntau |
| L290 | 290 | X42 | -9% | Nruab nrab -siab kis |
| L320 | 320 | X46 | Lub hauv paus | Nruab nrab -siab kis |
| L360 | 360 | X52 | +13% | General kis tau tus mob |
| L390 | 390 | X56 | +22% | Siab dua -siab kis |
| L415 | 415 | X60 | +30% | High -siab kis |
| L450 | 450 | X65 | +41% | Siab -siab, offshore |
| L485 | 485 | X70 | +52% | Ntev -qhov deb siab -siab |
| L555 | 555 | X80 | +73% | Ultra-siab- siab lub cev kab |
📏 Dimensional Specifications
GB / T 9711.1 qhia txog cov kev kam rau ua hauv qab no rau cov kav dej SSAW [citation: 1, citation: 5, citation: 6]:
| 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: 1, citation: 3, citation: 5, citation: 6]
🔍 Cov ntsiab lus tseem ceeb kom nkag siab
Dab tsi "GB/T 9711.1 L320" txhais tau tias: Qhov no yog Suav teb tus qauv rau cov kav dej steel kav nrog cov kev cai yooj yim. L320 yog qhov nruab nrab - qib zog, nrog qhov tsawg kawg nkaus tawm lub zog ntawm320 MPa. Nws yog ncaj qha sib npaug rauAPI 5L X46 (L320)nyob rau hauv thoob ntiaj teb specifications [citation:1, citation:2, citation:10].
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: 1, citation: 2, citation: 4]. Cov yam ntxwv tseem ceeb muaj xws li:
Chemistry: Tus qauv txwv (C Tsawg dua lossis sib npaug rau 0.26%, Mn Tsawg dua lossis sib npaug rau 1.40%, S / P Tsawg dua lossis sib npaug li 0.030%)
Lub zog: Tsuas yog qhov tsawg kawg nkaus tawm los thiab lub zog tensile tau teev tseg [citation: 1, citation: 2]
Kev ntsuam xyuas cuam tshuam: Tsis xav tau los ntawm tus qauv [citation: 1, citation: 2, citation: 4]
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
L320 vs. Qib qis: L320 muab kwv yees li10% siab zog tawm los L290 (X42)(320 MPa vs . 290 MPa) thiab ua haujlwm raws li kev xaiv nruab nrab ntawm X42 thiab X52 [citation:1, citation:2]. Qhov no ua rau nws tus nqi -kev xaiv zoo rau cov ntawv thov uas X42 nyob qis qis dua - lub zog tab sis X52 yuav dhau los - qhia.
SSAW Qhov Zoo rau L320: Cov txheej txheem kauv vuam muaj cov txiaj ntsig tshwj xeeb rau cov kav loj - txoj kab uas hla [citation:1, citation:6]:
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 L320 SSAW Yeeb Nkab
Cov txheej txheem tsim khoom ua raws li tus qauv SSAW ntau lawm [citation: 1, citation: 6]:
Kev npaj raw khoom: Kub-rolled steel coils ntsib GB/T 9711.1 L320 chemistry yuav tsum tau ua kom tiav, tshuaj xyuas, thiab ntug-milled .
Kauv txoj kev: Cov hlau sawb txuas ntxiv tsim rau hauv cov duab cylindrical ntawm lub kaum ntse ntse tshwj xeeb ntawm chav tsev kub.
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 rau tag nrho .
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:6, citation:8].
Kev Ntsuas Hydrostatic: Txhua cov yeeb nkab ib leeg raug kuaj xyuas kom ntseeg tau tias muaj kev ntseeg siab.
Mechanical Testing: Kev ntsuam xyuas tensile, kev ntsuam xyuas flattening, thiab khoov kev ntsuam xyuas los xyuas cov khoom.
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 xav tau [citation: 5, citation: 6].
🏭 Daim ntawv thov
GB/T 9711.1 L320 SSAW kav yog siv dav hauv [citation: 1, citation: 3, citation: 6, 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 xav tau lub zog siab dua X42 |
| 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 |
| Loj -Txoj Kev Hloov Pauv Dej | Cov phiaj xwm loj loj uas yuav tsum muaj kev ntseeg siab loj - cov kav dej |
📝 Cov ntsiab lus tseem ceeb
Standard Version: GB/T 9711.1 tau hloov kho ntau xyoo (1997, 2011, 2017 versions). Tam sim no version yogGB/T 9711.1-2017. Thaum txiav txim, qhia qhov yuav tsum tau version xyoo kom ua raws li cov cai tam sim no [citation: 6, citation: 9].
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 liL320M or X46M(TMCP) [citation:1, citation:2].
Kev ntsuam xyuas cuam tshuam: GB/T 9711.1 uatsis yogxav tau Charpy qhov kev ntsuam xyuas los ntawm tus qauv [citation: 1, citation: 2, citation: 4]. 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.
TMCP Options: Rau cov khoom txhim kho, micro- alloyed TMCP qib xws liL320Mmuaj nrog txhim kho toughness thiab weldability [citation: 1, citation: 2].
International sib npaug: L320 yog ncaj qha sib npaug rau [citation:1, citation:2, citation:10]:
API 5L X46 (L320)
TS EN ISO 3183 L320
Ua kom tiav Specification: Thaum xaj, qhia [citation:1, citation:6]:
GB/T 9711.1, Qib L320, 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 L320 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:6]. Nrog yam tsawg kawg nkaus tawm lub zog ntawm320 MPa (46,000 psi)- sib npaug rau API 5L X46 - cov kav dej no muaj kwv yees li10% siab zog dua L290 (X42), ua qhov kev xaiv nruab nrab zoo heev ntawm X42 thiab X52 rau nruab nrab - cov ntawv thov kev sib kis [citation:1, citation:2].
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:1, citation:3, citation:5, citation:6].
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 L320M lossis X46M (TMCP)qib [citation:1, citation:2].
Thaum kev txiav txim, xyuas kom meej tias koj qhia meej txog tus qauv ua tiav nrog xyoo version, qib L320, txheej txheem tsim khoom (SSAW), qhov ntev yuav tsum tau ua, thiab cov txheej txheem los yog ntxiv raws li koj daim ntawv thov tshwj xeeb [citation: 1, citation: 5, citation: 6].
