EN 10217-3 P275NL2 Welded Steel Yeeb Nkab - Normalized Fine-Cov yeeb nkab uas tsis kub kub
P275NL2 welded steel yeeb nkabyog lub siab- lub hom phiaj raj ua los ntawm hluav taws xob los yog submerged - arc vuam los ntawm normalized, weldable nplua - nplej hlau phaj ua raws liTS EN 10028-3: 2017. Lub raj nws tus kheej yog muab rauTS EN 10217-3: 2014. Nws lub ntsiab feature yog lubCharpy V-qhov ntsuas qhov cuam tshuam ntawm −50℃nrog qhov tsawg kawg ntawm 27 J- qhov ntsuas kub qis tshaj plaws hauv tsev neeg P275, uas ua rau nws yog qib kev xaiv rau Arctic, sab ntug dej hiav txwv thiab lwm yam tsis tshua muaj siab heev - qhov kev pabcuam kub siab.
Cov neeg yuav khoom nquag ntsib P275NL2 tsuas yog cov hlauphajqib. Rau cov yeeb nkab, ob tus qauv European yuav tsum tshwm sim ntawm kev yuav khoom ua ke:TS EN 10028-3txhais cov hlau chemistry thiab cov khoom ntawm cov khoom siv hauv paus, thaumTS EN 10217-3txhais lub welded raj ua los ntawm nws. Nplooj ntawv no npog lub welded raj; Seamless counterpart raug them cais raws li EN 10216-3.
Cov tshuaj muaj pes tsawg leeg ntawm steel P275NL2 (1.1104): EN 10028-3-2009
| Raws li EN 10216-3: 2014: 0.5=< Mn=<1.5; S=<0.005; N=<0.02; Ti=<0.04; |
| C | Si | Mn | Ni | P | S | Cr | Mo | V | N | Nb | Ti | Al | Cu | Nd | - |
| max 0.16 | max 0.4 hli | 0.8 - 1.5 | max 0.5 hli | max 0.02 Nws | max 0.01 Nws | max 0.3 hli | max 0.08 Nws | max 0.05 Nws | max 0.012 | max 0.05 Nws | max 0.03 Nws | max 0.02 Nws | max 0.3 hli | max 0.05 Nws | Nb+Ti+V < 0.05 |
Cov khoom siv kho tshuab (normalized, longitudinal, EN 10028-3: 2017)
Yield zog txo nrog phab ntsa thickness
| Thickness (hli) | Hwj chim min (MPa) |
|---|---|
| Tsawg dua los yog sib npaug li 16 | 275 |
| > 16 – 40 | 265 |
| > 40 – 60 | 255 |
| > 60 – 100 | 235 |
| > 100 – 150 | 225 |
| > 150 – 250 | 215 |
Tensile zog thiab elongation
| Thickness (hli) | Rm (MPa) | Ib min (%) |
|---|---|---|
| Tsawg dua los yog sib npaug li 60 | 390 – 510 | 24 |
| > 60 – 100 | 370 – 490 | 23 |
| > 100 – 150 | 360 – 480 | 23 |
| > 150 – 250 | 350 – 470 | 23 |
Rau qhov tiavwelded cev(EN 10217-}3: 2014) lub tensile band yog 390 - 530 MPa - me ntsis dav dua lub phaj band vim hais tias tus qauv raj tso cai rau sab sauv npoo. Yield ua raws tib lub thickness nkhaus saum toj no.
Tsawg- qhov kub thiab txias cuam tshuam - NL2 qhov sib txawv
Cov cuab yeej ib leeg uas cais P275NL2 los ntawm nws cov kwv tij yog tusCharpy V-qhov ntsuas qhov ntsuas kub. Tag nrho cov qib P275 sib faib 275 MPa tawm los; tsuas yog qhov ntsuas qhov ntsuas qhov ntsuas qhov sib txawv.
| Qib | Khoom siv no. | Impact test temp. | Min. cuam tshuam lub zog (ntev, avg) |
|---|---|---|---|
| P275N | 1.0486 | 0℃(chav-temp quality) | Ntau dua lossis sib npaug li 27 J |
| P275 NH | 1.0487 | 0℃(siab -temp quality) | Ntau dua lossis sib npaug li 27 J |
| P275 NL1 | 1.0488 | -40 degree | Ntau dua lossis sib npaug li 27 J |
| P275 NL 2 | 1.1104 | -50 degree | Ntau dua lossis sib npaug li 27 J |
Vim tias chemistry ntawm NL1 thiab NL2 zoo ib yam, xaiv NL2 yog aqis-kub kev nyab xeeb hloov kho: koj tau txais ib daim ntawv pov thawj −50℃toughness margin uas tsis hloov lub zog, chemistry lossis weldability. Lub weld seam thiab HAZ ntawm lub welded raj yuav tsum tau raws li qhov yuav tsum tau ntawm -50 degree.
Qhov ntev thiab phab ntsa thickness (EN 10217-3 welded raj)
EN 10217-3 npog lub hnab ntawv dav heev, uas yog lub hauv paus tseem ceeb rau xaiv welded hla seamless rau cov kab loj loj.
| Parameter | Qhov ntau yam (EN 10217-3) |
|---|---|
| Sab nraud txoj kab uas hla (OD) | 10.2-2540 hli |
| Phab ntsa thickness | 2.3-40mm (nyob ntawm OD) |
| Ntev | Txog li ~ 18 m, lossis txiav - mus rau - ntev |
| Ua siab ntev | Raws li EN 10217-3 / EN ISO 1127 |
Cov kab me me (kwv yees Tsawg dua lossis sib npaug li 610 mm) feem ntau yog hluav taws xob -kuj/induction welded (ERW/HFW); loj diameters longitudinally (LSAW) los yog helically (HSAW) submerged -arc welded. Paub meej tias lub hnab ntawv tiag tiag tiv thaiv koj qhov kev txiav txim thiab lub tshuab calibre.
Cov qhab nia sib npaug thiab sib piv
| Qhov system | Qib ze tshaj plaws | Saib |
|---|---|---|
| European (ib yam std.) | P275NL1 (1.0488) | Tib chemistry; -40℃tsis yog -50 degree |
| ASTM (pib, qis -temp) | ASTM A333 Gr 1. | Kaw qis tshaj -kub yeeb nkab analogue;tsis yogua 1:1 |
| ASTM (Plate) | ASTM A516 Gr . 70 / A737 Gr. B | Siab- nkoj phaj; txawv qhov cuam tshuam |
| Suav (GB) | 16MnDR (GB 3531) | -40℃qis-temp phaj; qis qis -temp margin dua NL2 |
| DIN / Werkstoff | 1.1104 | Tib yam khoom naj npawb |
Qhov sib npaug yograu siv xwb. Ua ntej hloov pauv, lees paub chemistry, cuam tshuam qhov kub thiab kev pom zoo (piv txwv li PED, NORSOK) nrog tus kws kho mob hlau lossis tus neeg siv khoom kawg.
TS EN 10217-3 Welded thiab seamless (EN 10216-3)
| Yam | Welded - EN 10217-3 (nplooj ntawv no) | Seamless - EN 10216-3 |
|---|---|---|
| Tsis muaj | Normalized phaj / coil | Kub- ua hollow |
| Max OD | Loj heev (txog ~ 2540 hli) | Txwv (feem ntau Tsawg dua lossis sib npaug rau ~ 660 mm) |
| Nqi | Lower rau loj dia. / ntev ntev | Siab dua |
| Kev ncaj ncees | Seam yog cov yam ntxwv tswj (100% NDT) | Tsis muaj seam; uniform rau lub luag haujlwm tseem ceeb |
| Xaiv thaum twg | Loj txoj kab uas hla, nruab nrab siab, tus nqi -sensitive | Siab -kev ncaj ncees / cyclic / kev pabcuam tseem ceeb |
Ob txoj kev siv lubIb yam EN 10028-3 P275NL2 puag steel, yog li chemistry thiab qis -kub toughness yog tib yam - kev xaiv yog hais txog geometry, kev ncaj ncees thiab tus nqi, tsis yog qib.
Daim ntawv thov thiab kev pabcuam ciam teb
P275NL2 welded yeeb nkab yog siv nyob rau hauv qhov chaw uas lub siab ntim raws li huab cua txias:
Arctic thiab sub-Arctic offshore platforms, lub taub dej thiab cov kav dej saum toj kawg nkaus
Cryogenic thiab qis- cov kab txheej txheem kub, cov khoom sib cais, cov khoom sib txuas
LNG lub davhlau ya nyob twg txhawb nqa cov qauv thiab txias - kev pabcuam kav dej (saib ciam teb hauv qab no)
Cov hlab ntsha siab, boilers thiab kub exchangers ua hauj lwm nyob rau hauv qis ambient
General mechanical thiab apparatus engineering nyob rau hauv huab cua txias
Tsis txhob dhau - qhia:P275NL2 yog tsim nyog rau-50 degree. Nws yogtsis yogib cov kua-LNG khoom - LNG khaws cia thiab thauj thaum txog-162 degree, uas yuav tsum tau 9% nickel steel (piv txwv li EN 10028-4 / ASTM A553). Siv P275NL2 rau Arctic ambient, kev txhawb nqa cov qauv thiab cov txheej txheem txias txias, tsis yog rau lub sijhawm ua kua cryogenic nws tus kheej.
Vuam thiab tom qab-welding cua sov kho
P275NL2 welds yooj yim ua tsaug rau qis C (Less dua lossis sib npaug rau 0.16) thiab CEV Tsawg dua lossis sib npaug rau 0.43. Kev taw qhia tswv yim (paub tawm tsam koj WPS / EN 1011-1):
| Kauj ruam | Kev taw qhia |
|---|---|
| Preheat | Feem ntau tsis tas yuav tsum tau t Tsawg dua lossis sib npaug li 30 hli; 100 - 150℃rau cov seem thicker lossis txias ambient |
| Interpass temp. | Tsawg dua los yog sib npaug li 250 degree |
| Kub input | Tswj, feem ntau ~ 15 - 35 kJ / cm |
| PWHT | Kev ntxhov siab-relief annealing 580 - 620℃thaum xav tau los ntawm tus qauv tsim (xws li tuab- cov hlab ntsa) |
| Cov khoom siv | Tsawg-hydrogen; match toughness rau −50℃kev pab cuam (piv txwv li AWS E5515-C1 / ER50-6 chav kawm, txheeb xyuas) |
Weld seam soj ntsuam thiab kuaj (EN 10217-3)
Qhov zoo ntawm lub welded raj nyob los yog tuag ntawm lub seam. EN 10217-3 xav tau, raws li qhov tsawg kawg nkaus:
100%.- feem ntau yog kuaj ultrasonic (UT) lossis kuaj radiographic (RT).
Hydrostatic xeemmus rau ib tug siab muab tau los ntawm phab ntsa, txoj kab uas hla thiab teev yield.
Mechanical xeemntawm niam txiv hlau thiab, qhov twg tau teev tseg, qhov vuam / HAZ (tensile, khoov, Charpy ntawm −50℃rau NL2).
Visual thiab dimensional soj ntsuamntawm OD, phab ntsa, ntev thiab ncaj.
Tshuaj ntsuam xyuasCov khoom siv hauv paus rau EN 10028-3.
Cov ntaub ntawv soj ntsuamrau EN 10204 - feem ntau3.1, nrog3.2muaj nyob ntawm kev thov.
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GNEE cov khoom siv EN 10217-3 P275NL2 welded yeeb nkab nyob rau hauv cov xwm txheej zoo nrog EN 10204 3.1 / 3.2 thiab tag nrho weld-seam NDT. Xa koj OD, phab ntsa, qhov ntev thiab qhov yuav tsum tau muaj.
Thov ib tug P275NL2 welded yeeb nkab hais
FAQ
EN 10217-3 P275NL2 welded yeeb nkab yog dab tsi?
Nws yog lub siab- lub hom phiaj welded raj ua los ntawm cov khoom zoo tib yam -grain steel P275NL2 (khoom tsis yog. 1.1104). Qib steel yog txhais los ntawm EN 10028-3: 2017 thiab tiav welded raj los ntawm EN 10217-3: 2014. Nws cov cuab yeej tseem ceeb yog Charpy cuam tshuam rau qhov hnyav ntawm -50℃nrog qhov tsawg kawg nkaus ntawm 27 J.
Qhov txawv ntawm P275NL2 thiab P275NL1 yog dab tsi?
Lawv sib koom tib yam tshuaj muaj pes tsawg leeg thiab tib yam 275 MPa tawm los. Qhov sib txawv tsuas yog qhov ntsuas qhov ntsuas qhov ntsuas kub: P275NL1 yog kuaj ntawm -40 degree, P275NL2 ntawm -50 degree. Yog li xaiv NL2 yog qhov qis -kub kev nyab xeeb kev hloov kho yam tsis muaj kev nplua rau lub zog lossis weldability.
Cov tshuaj muaj pes tsawg leeg ntawm P275NL2 yog dab tsi?
Raws li EN 10028-3: 2017 (ladle tsom xam, max %): C Tsawg dua lossis sib npaug rau 0.16, Si Less dua lossis sib npaug 0.40, Mn 0.80–1.50, P Less dua lossis sib npaug 0.020, S Less dua lossis sib npaug 0.010, Sib npaug Al 0. 0.50, Cr Tsawg dua lossis sib npaug 0.30, Mo Less dua lossis sib npaug rau 0.08, Nb Tsawg dua lossis sib npaug rau 0.05, Ti Tsawg dua lossis sib npaug 0.03, V Tsawg dua lossis sib npaug 0.05, nrog Nb + Ti + V Tsawg dua lossis sib npaug 0.05. Cov pa roj carbon sib npaug CEV tsawg dua lossis sib npaug li 0.43 rau tuab txog 60 hli.
Dab tsi yog cov khoom siv kho tshuab thiab lub zog tawm ntawm P275NL2?
Tawm los (ReH, min) ntog nrog thickness: 275 MPa ntawm Tsawg dua los yog sib npaug rau 16 hli, 265 ntawm 16–40 mm, 255 ntawm 40–60 mm, 235 ntawm 60–100 mm, 225 ntawm 100–150 mm, 215 ntawm 150. Tensile (Rm) yog 390-510 MPa txog 60 mm. welded raj (EN 10217-3) tso cai Rm txog 530 MPa. Yam tsawg kawg nkaus lub zog yog 27 J ntawm -50 degree.
Dab tsi qhov ntev thiab phab ntsa thickness muaj rau P275NL2 welded yeeb nkab?
TS EN 10217-3 npog sab nraud txoj kab uas hla ntawm 10.2 hli txog 2540 hli thiab phab ntsa thickness ntawm 2.3 hli mus rau 40 hli, nyob ntawm txoj kab uas hla. Qhov loj me yog feem ntau ERW / HFW welded; loj diameters yog LSAW los yog HSAW. Lub hnab ntawv tiag tiag yuav tsum tau lees paub tiv thaiv lub tshuab lub peev xwm thiab koj qhov kev txiav txim.
P275NL2 welded yeeb nkab tsim thiab kuaj li cas?
Nws yog tsim los ntawm cov phaj zoo li qub lossis coil los ntawm hluav taws xob (ERW/HFW) lossis submerged -arc vuam (LSAW/HSAW). EN 10217-3 yuav tsum tau 100% tsis muaj kev puas tsuaj ntawm cov vuam seam (UT los yog RT), ib tug hydrostatic test, mechanical thiab tshuaj ntsuam xyuas, thiab EN 10204 cov ntaub ntawv tshuaj xyuas (feem ntau yog 3.1, nrog 3.2 ntawm kev thov).
Qib sib npaug ntawm P275NL2 yog dab tsi?
Tsis muaj qhov sib npaug 1: 1. Qhov ze tshaj qis -kub yeeb nkab analogue yog ASTM A333 Gr. 6; Cov qib phaj ntsig txog yog ASTM A516 Gr. 70 / A737 Gr. B thiab Suav 16MnDR (GB 3531). Txhua qhov kev hloov pauv yuav tsum tau lees paub los ntawm ib tus kws tshaj lij metallurgist tiv thaiv qhov ntsuas kub thiab qhov kev pom zoo ntawm qhov project.
P275NL2 welded yeeb nkab puas tuaj yeem siv rau LNG lossis kev pabcuam cryogenic?
P275NL2 yog tsim nyog rau −50 degree, haum rau Arctic ambient, offshore thiab txias - txheej txheem piping thiab txhawb cov qauv. Nws tsis yog kua dej -LNG khoom: LNG yog ua haujlwm ntawm −162℃thiab xav tau 9% nickel steel (EN 10028-4 / ASTM A553). Siv P275NL2 rau qhov chaw txias thiab cov qauv, tsis yog theem ua kua cryogenic.
Cim npe nrov: TS EN 10217-3 P275NL2 Welded Steel Pipe - Normalized Fine-Grain Low-Tub Pipe, Tuam Tshoj EN 10217-}3 P275NL2 Welded Steel Pipe - Normalized Fine-Grain Low-Temperature Pipe
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