ERW Pipe yog dab tsi?
Aug 25, 2026
ERW Pipe vs Seamless Yeeb Nkab|Nqe, Kev Tsim Khoom & Kev Muag Khoom 2026
ERW yeeb nkab (Electric Resistance Welded Pipe) yog welded steel yeeb nkab tsim los ntawm kev tsim steel sawb los yog phaj rau hauv cov tubular zoo thiab koom nrog cov npoo nrog hluav taws xob tiv thaiv tshav kub, feem ntau siv siab - zaus vuam (HFW).Xyoo 2026, tus nqi ERW carbon steel yeeb nkab yog kwv yees li$650–$1,200 ib tuj, nyob ntawm qib, txoj kab uas hla, phab ntsa thickness, txheej thiab kev xeem yuav tsum tau.
ERW steel kav yog siv dav hauvroj thiab roj tsheb thauj mus los, cov kav dej, cov phiaj xwm txheej txheem, boilers, tshuab tshuab thiab cov kav dej dav dav. Piv nrog seamless yeeb nkab, ERW yeeb nkab feem ntau muab tus nqi qis dua thiab ua haujlwm ntau dua rau nruab nrab - thiab loj - ntim xaj.
erw yeeb nkab nqe npe Nqe & Nqi 2026
| ERW Yeeb Nkab Hom | Hom Loj | Khoom siv | Tus nqi kwv yees 2026 |
| Me me ERW Yeeb Nkab | 1/2"–2" | ASTM A53 Gr. B | $700 – $1,000/ton |
| ERW Tube | 2"–6" | ASTM A53 / API 5L Gr. B | $650–$950/ton |
| API 5L ERW Kab Yeeb | 6"–16" | X42 / X52 | $750–$1,100/ton |
| High Strength ERW Yeeb Nkab | 6"–24" | X60 / X65 | $900–$1,400/ton |
| Galvanized ERW yeeb nkab | 1/2"–6" | Carbon Steel | $850–$1,300/ton |
| Stainless hlau ERW yeeb nkab | 1"–12" | 304 / 316L | $2,200–$5,500/ton |
Cov no yog cov kev lag luam siv dav dav. Tus nqi kawg ERW yeeb nkab yuav tsum raug xam raws listeel qib, OD, phab ntsa thickness, ntev, kom muaj nuj nqis, txheej, kuaj thiab lo lus uas peb.
ERW Pipe yog dab tsi?
ERW sawv rauElectric Resistance Vuam. Cov yeeb nkab yog tsim los ntawm steel kauj lossis sawb. Niaj hnub nimno ERW manufacturing feem ntau sivsiab - zaus vuam (HFW). Lub siab - zaus hluav taws xob tam sim no concentrates cua sov ntawm cov npoo npoo, tso cai rau cov hlau kom ncav cuag qhov xav tau vuam kub sai.
Cov khoom siv xws liASTM A53 Gr. B, API 5L, X42, X52, X60, X65, S235, S355 thiab ntau qib stainless hlau.
ERW Pipe Size Range
| Sab nraud txoj kab uas hla | Kwv yees li ntawm 10 hli mus rau 610 hli |
| Nominal yeeb nkab loj | 1/8 nyob rau hauv 24 nyob rau hauv. |
| Phab ntsa thickness | Kwv yees li 0.5 hli mus rau 25 hli |
| Txheem ntev | 6m, 12m lossis customized |
| Weld hom | Tsawg- zaus ERW lossis siab -frequency HFW |
| Nto | Dub, liab qab, galvanized, coated los yog pleev xim rau |
ERW Steel Pipe Sizes Daim Ntawv Qhia
| NPS | OD (mm) | Sch 40 WT (hli) | Sch80 WT (hli) |
| 1/2 | 21.3 | 2.77 | 3.73 |
| 3/4 | 26.7 | 2.87 | 3.91 |
| 1 | 33.4 | 3.38 | 4.55 |
| 2 | 60.3 | 3.91 | 5.54 |
| 3 | 88.9 | 5.49 | 7.62 |
| 4 | 114.3 | 6.02 | 8.56 |
| 6 | 168.3 | 7.11 | 10.97 |
| 8 | 219.1 | 8.18 | 12.7 |
| 10 | 273 | 9.27 | 15.09 |
| 12 | 323.8 | 10.31 | 17.48 |
| 14 | 355.6 | 11.13 | 19.05 |
| 16 | 406.4 | 12.7 | 21.44 |
| 18 | 457 | 14.27 | 23.83 |
| 20 | 508 | 15.09 | 26.19 |
| 24 | 610 | 17.48 | 30.96 |
a53 eRW yeeb nkab Mechanical Properties
| Tensile zog | Tsawg kawg 415 MPa |
| Yield zog | Tsawg kawg 240 MPa |
| Elongation | Nyob ntawm cov qauv thiab cov yeeb nkab qhov ntev |
API 5L erw carbon steel yeeb nkab Yield Strength
| API 5L ERW PIPE | Yam tsawg kawg nkaus Yield Strength |
| Gr. B | Kwv yees li 245 MPa |
| X42 | Kwv yees li 290 MPa |
| X52 | Kwv yees li 360 MPa |
| X60 | Kwv yees li 415 MPa |
| X65 | Kwv yees li 450 MPa |
| X70 | Kwv yees li 485 MPa |
ERW round tube Manufacturing txheej txheem
Hlau Chev → Slitting → Edge Preparation → Roll Forming → High -Frequency Welding → Weld Squeeze → Bead Removal → Cooling → Sizing → Straightening → Cutting → Inspection → Testing → Packing
ERW Kab Yeeb Tshuaj Tshuaj
- 100% weld seam NDT
- Kev kuaj ultrasonic
- Eddy tam sim no kuaj qhov twg muaj feem xyuam
- Kev ntsuam xyuas hydrostatic
- Dimensional soj ntsuam
- Mechanical kuaj
- Flattening lossis khoov kuaj
- Charpy impact test qhov twg yuav tsum tau
- PMI rau cov ntaub ntawv alloy
- Thib peb-kev soj ntsuam tog
ERW vs Seamless vs EFW vs SAW Pipe
| Feature | ERW / HFW Tube | Seamless Yeeb Nkab | EFW cev | SAW Pipe |
| Weld seam | Yog, longitudinal | Tsis muaj | Yog lawm | Yog lawm |
| Filler hlau | Nquag tsis muaj | N/A | Feem ntau yog | Yog lawm |
| Cov khoom nyoos | Coil / sawb | Billet | Phaj | Phaj / coil |
| Hom kab | Me me rau nruab nrab / loj | Me me mus rau nruab nrab | Nruab nrab mus rau loj | Loj txoj kab uas hla |
| Dimensional raug | Zoo heev | Zoo | Zoo | Zoo |
| Phab ntsa thickness | Nyias mus rau nruab nrab | Nruab nrab mus rau hnyav | Nruab nrab mus rau hnyav heev | Nruab nrab mus rau hnyav |
| Tus nqi tsim khoom | Kev sib tw | Siab dua | Nruab nrab mus rau siab | Kev sib tw rau OD loj |
| Ntau lawm efficiency | Siab heev | qis | Nruab nrab | Nruab nrab |
| Cov ntawv thov siv | Kab yeeb nkab, txheej txheem, mechanical | Kev kub siab, kub siab | Txheej txheem kav, loj OD | Cov kav xa dej |
- XaivERW cevthaum tus nqi efficiency, qhov sib xws, thiab cov ntim ntau lawm yog qhov tseem ceeb.
- Xaivseamless yeeb nkabrau kev xav tau siab heev -siab lossis kev pabcuam cyclic tseem ceeb uas qhov kev qhia tshwj xeeb yuav tsum muaj kev tsim kho seamless.
- XaivEFW cevrau txoj kab uas hla loj dua thiab hnyav -phab ntsa alloy lossis stainless hlau daim ntaub ntawv.
- XaivLSAW or SSAW piperau loj - txoj kab uas hla kis tau tus mob thiab tej yaam num infrastructure.
ERW Yeeb Nkab Kev Lag Luam Daim Ntawv Thov
Roj thiab Roj
ERW / HFW kav yog siv dav rau:
- Onshore sib sau kab
- Cov kab dej txhaj tshuaj
- Tsawg- thiab nruab nrab- cov kav dej siab
- Cov kab ke sib kis
- Cov yam ntxwv ntawm cov khoom
- Casing thiab tubing -txog cov ntawv thov uas tau tso cai los ntawm kev qhia tshwj xeeb
Rau qhov tseem ceeb qaub- cov haujlwm pabcuam, cov khoom siv yuav tsum ua raws li cov kev xav tau ntxiv ntsig txogHIC, SSC, hardness, tshuaj muaj pes tsawg leeg, thiab weld seam kev ncaj ncees.
Dej thiab Infrastructure
ERW yeeb nkab yog dav siv hauv:
- Cov kav dej hauv nroog
- Kev tiv thaiv hluav taws
- Irrigation systems
- Dej ntws
- Cov chaw nres tsheb
Structure Engineering
ASTM A500 ERW tubing yog muaj nyob rau hauv:
- Cov tsev hlau
- Cov choj
- Cov khoom siv thav duab
- Ntauwd
- Fabricated qauv
Tiag -Kev Paub Txog Kev Tsim Kho Hauv Ntiaj Teb Thiab Cov Teeb Meem
"Puas yog erw weld seam txhim khu kev qha?"
Niaj hnub nimno ERW / HFW yeeb nkab nrog kev tswj cov vuam tsis zoo thiab kev soj ntsuam zoo tuaj yeem muab kev ua tau zoo. Txawm li cas los xij, tsis zoo -kev tsim khoom ERW tsis zoo tuaj yeem ua rau seam- cuam tshuam nrog xws li:
- Kev sib txuas tsis tiav
- Oxide suav nrog
- Nuv kab nrib pleb
- Tsis muaj fusion
- Weld seam corrosion
Xws li, feem ntau cov ntsiab lus ntawm qhov tsis ua hauj lwm ntxov ntxov hauv ERW cov kav dej yog qhov chaw nyob sab hauv corrosion raws cov kab weld (groove corrosion), tshwj xeeb tshaj yog nyob rau hauv cov kev pabcuam tsis muaj kua qaub lossis CO2 nplua nuj. Yuav kom txo tau qhov no, engineers yuav tsum tau hais kom meej weld seams normalized thiab siv cov tshuaj tiv thaiv corrosion los yog epoxy linings.
"Kev txhawj xeeb txog kev teeb tsa sab hauv hauv ERW cov kav dej txwv cov dej ntws los yog ua rau cov ntsiab lus pib corrosion."
Niaj hnub nimno siab- zaus ERW mills tshem tawm cov hlaws hauv cov hlaws (flash trimming) kom ntseeg tau tias qhov chaw sab hauv du, tseem ceeb heev rau kev thauj cov kua dej.
Seamless vs. ERW yeeb nkab rau siab - cov kab ua kua
Txawm hais tias cov kav dej seamless keeb kwm muaj kev tswj hwm siab - kev pabcuam siab, niaj hnub kev nce qib hauv siab - zaus vuam thiab nruj weld- seam kev kho cua sov (normalization) ua rau siab -frequency ERW kav ib qho kev ntseeg siab sib npaug, tus nqi- siv lwm txoj hauv kev rau ntau qhov kev siv siab.
Cov qauv twg tswj hwm ERW carbon steel kav?
- ASTM A53 (Qib A thiab B rau kev siv cov qauv / siab)
- ASTM A500 (Tshwj xeeb tubing)
- API 5L (kab yeeb nkab rau roj thiab roj)
FAQ:
Q: Dab tsi yog ERW yeeb nkab nqi ib tuj xyoo 2026?
A:Txheem carbon steel ERW yeeb nkab feem ntau nyob ib ncig ntawm$650–$1,200 ib tujnyob rau hauv 2026. API qib, loj diameters, thicker phab ntsa thiab tshwj xeeb coatings yuav ua rau kom tus nqi kawg.
Q: Qhov txawv ntawm ERW thiab LSAW yeeb nkab yog dab tsi?
A: ERW (Electric Resistance Welded) yeeb nkab yog tsim los ntawm dov steel sawb thiab hla nws los ntawm qhov siab - zaus hluav taws xob tam sim no, zoo tagnrho rau txoj kab uas hla mus txog 24 ntiv tes nrog tus nqi qis thiab qhov raug siab. LSAW (Longitudinal Submerged Arc Vuam) feem ntau yog siv rau txoj kab uas hla loj dua (txog 60+ ntiv tes) thiab hnyav phab ntsa thicknesses rau siab - siab kis.
Q: ERW yeeb nkab vs seamless yeeb nkab - uas zoo dua?
A:Tsis yog universally zoo dua. ERW yeeb nkab feem ntau yog tus nqi ntau dua - zoo thiab haum rau ntau cov raj xa dej thiab cov qauv siv. Seamless yeeb nkab feem ntau nyiam rau qhov hnyav siab - siab, siab - kub lossis kev pabcuam tseem ceeb.
Q: Kuv yuav xaiv li cas ntawm API 5L ERW thiab ASTM A53 ERW yeeb nkab?
A:API 5L feem ntau yog xaiv rau cov ntawv thov kev thauj mus los, thaum ASTM A53 feem ntau yog siv rau kev siv tshuab, qauv thiab kev siv siab. Qhov kev xaiv kawg nyob ntawm qhov project specification.
Q: Puas yog ERW yeeb nkab zoo rau kev siv cov qauv?
A: Yog lawm, ERW steel kav muaj lub zog zoo heev - rau - qhov hnyav piv, nruj kam rau ua, thiab cov phab ntsa tuab, ua rau lawv siv dav hauv kev tsim kho, scaffolding, txoj kev loj guardrails, thiab machinery thav duab.
Q: Dab tsi yog qhov tsis xws luag hauv ERW kav dej thiab yuav ua li cas kom zam tau lawv?
A: Cov kev txhawj xeeb feem ntau muaj xws li nuv kab nrib pleb, txias welds, thiab ntug misalignment. Kev yuav khoom los ntawm cov mills uas ua nruj tsis yog-Kev kuaj kev puas tsuaj (NDT) xws li kev kuaj ultrasonic (UT) thiab kev kuaj hydrostatic ua kom muaj kev ncaj ncees.
Q: Cov kav dej ERW puas tuaj yeem siv rau siab - roj thiab roj xa mus?
A: Yog, API 5L tau ntawv pov thawj ERW kav dej (txog PSL2 qib zoo li X65 lossis X70) tau siv dav rau cov kab sib kis, yog tias lawv tau txais kev nruj ultrasonic tsis- kuaj kev puas tsuaj thiab vuam- seam normalization.
Q: Yuav ua li cas txheeb xyuas qhov zoo ntawm ERW steel kav los ntawm Suav tuam ntxhab?
A: Cov chaw kuaj xyuas tseem ceeb suav nrog kev thov ISO 9001 thiab API 5L cov ntawv pov thawj, txheeb xyuas cov ntaub ntawv kuaj zeb (MTRs) rau cov tshuaj lom neeg muaj pes tsawg leeg thiab tensile lub zog, thiab siv thib peb -cov koom haum soj ntsuam xws li SGS lossis BV ua ntej xa khoom.
