TS EN 10219 S355J2H kauv welded steel yeeb nkab (tseem hu ua SSAW / SAWH yeeb nkab) yog ib qho txias - tsim helical submerged arc welded structural hollow seem tsim raws li European tus qauv EN 10219 (Part 1: technical delivery conditions; Part 2): dimensional tolerance Qhov no qis - alloy siab - lub zog kauv steel yeeb nkab nta zoo heev qis- qhov kub thiab txias tsis kam, muaj peev xwm ua tau zoo dua qub thiab zoo weldability. Nws yog tshwj xeeb tsim los rau hnyav-lub luag haujlwm engineering, txias- cheeb tsam infrastructure, lub hauv paus piling thiab loj- scale structural tej yaam num uas yuav tsum tau nruj mechanical kev ua tau zoo thiab seem raug.
Sib txawv ntawm cov pa roj carbon steel kauv kav, S355J2H qib kav tau ntawv pov thawj rau-20℃qis-kub Charpy V-notch impact test, tshem tawm cov kev pheej hmoo ntawm pob txha tawg nyob rau hauv qhov hnyav hnyav ib puag ncig, uas ua rau nws nyiam cov qauv steel yeeb nkab rau European qauv engineering tej yaam num.
nthuav qhia meej meej ntawm S355J2H code rau kev siv hluav taws xob ceev:
- S: Structural steel rau kev tsim kho thiab engineering structural Cheebtsam
- 355: Yam tsawg kawg nkaus yield zog mus txog 355MPa, nruab nrab - siab zog structural steel qib
- J2: Guaranteed yam tsawg kawg nkaus 27J Charpy cuam tshuam lub zog ntawm -20 degree, zoo heev kub-kub toughness
- H: Hollow seem, nplooj siab rau welded txias- ua hollow steel kav
Ua kom tiav Technical Parameters
1 Basic Standard Information
|
Yam khoom |
Specification |
|---|---|
|
Executive Standard |
EN 10219-1: 2019, EN 10219-2: 2019 |
|
Qib Steel |
S355J2H |
|
Kev tsim khoom |
Spiral Submerged Arc Vuam (SSAW/SAWH), txias sib sau |
|
Sab nrauv kab |
219mm - 3048 hli |
|
Phab ntsa Thickness Range |
6mm - 40 hli |
|
Txheem Length |
6m / 12m / 18m / customized ntev ntev (max 32m) |
|
Pipe End Hom |
Plain kawg / Beveled kawg rau vuam / Threaded kawg |
|
Kev kho saum npoo |
Dub kua roj vanish / 3PE tiv thaiv -corrosion / FBE txheej / Kub dip galvanized |
2 Mechanical Properties
|
Yield zog (Rp0.2) |
Tensile zog (Rm) |
Elongation (A) |
Charpy Impact Test |
|---|---|---|---|
|
Ntau dua lossis sib npaug li 355 MPa |
470 - 630 MPa |
Ntau dua lossis sib npaug li 22% |
27J @ -20℃(V-notch, longitudinal) |
3 Dimensional Tolerance (Ua raws li EN10219-2)
|
Parameter |
Tolerance Standard |
|---|---|
|
Sab nraud |
± 0.75% ntawm nominal OD |
|
Phab ntsa Thickness |
± 7.5% rau thickness ≥5mm; ± 10% rau thickness Tsawg dua los yog sib npaug li 5 hli |
|
Yeeb Nkab Ncaj |
Tsawg dua lossis sib npaug li 0.15% ntawm tag nrho cov yeeb nkab ntev |
|
Tsau Length Deviation |
+50mm / -0mm |
4 Chemical Composition (Max %, Heat Analysis)
|
C |
Si |
Mn |
P |
S |
|---|---|---|---|---|
|
0.22 |
0.55 |
1.60 |
0.025 |
0.020 |
Daim ntawv thov
Tau txais txiaj ntsig los ntawm lub zog siab thiab qis -kub toughness, EN10219 S355J2H kauv steel kav yog dav siv nyob rau hauv lub ntiaj teb no engineering tej yaam num, tshwj xeeb tshaj yog European standard infrastructure:
- Kev tsim kho vaj tse: Cov kab kev txhawb nqa tseem ceeb rau siab - cov tsev nce siab, steel qauv thav duab, cov qauv truss, cov chaw ua yeeb yam loj thiab cov chaw ua si txhawb nqa
- Choj & Traffic Infrastructure: Choj pawg hauv paus, choj txhawb nqa piers, kev loj guardrail qauv, railway auxiliary steel qauv
- Foundation Piling Works: Marine siv cov kav dej, lub hauv paus engineering hauv paus pawg, lub tsev hauv paus bearing pawg, txoj kab nqes kev tiv thaiv cov kav dej
- Tshiab Zog Kev Lag Luam: Cua turbine ntauwd lub hauv paus qauv, hnub ci fais fab chaw nres tsheb bracket lub ntsiab kav, offshore cua ua liaj ua teb auxiliary structural kav
- Cold Region Municipal Projects: Sab nraum zoov cov kav dej txhawb nqa, cov kav dej hauv qab hauv av dav dav, txias - thaj chaw txhawb nqa hauv nroog hauv Northern Europe, Russia thiab Canada
- Offshore & Chaw nres nkoj Engineering: Chaw nres nkoj wharf txhawb nqa cov qauv, offshore platform auxiliary hollow structural Cheebtsam, seawater corrosion resistant structural kav (nrog anti-corrosion txheej)
Cov lus nug nquag nug (FAQ)
Q1: Dab tsi yog qhov txawv ntawm S355J2H thiab S355J0H kauv steel kav?
A: Qhov sib txawv tseem ceeb nyob rau hauv qis -kub los tiv thaiv. S355J0H xav tau 27J cuam tshuam lub zog ntawm 0 degree, thaumS355J2H yog kuaj ntawm -20 degree. S355J2H yog qhov tsim nyog rau cov cheeb tsam huab cua txias thiab cov khoom siv dynamic load-cov kabmob uas muaj kev ruaj ntseg siab dua, uas yog qib tseem ceeb rau qib siab - qauv European engineering tej yaam num.
Q2: Puas yog EN10219 S355J2H cov yeeb nkab kub tiav lossis txias tsim?
A: Nws yogtxias- ua welded hollow seemUa raws li EN10219 tus qauv. Piv nrog rau kub- tiav EN10210 steel kav, nws muaj qhov nruj dua qhov ntev ntev, smoother nto thiab qis dua cov nqi tsim khoom, tsim nyog rau cov kav loj - txoj kab uas hla kauv structural kav.
Q3: Koj puas tuaj yeem muab daim ntawv pov thawj EN tus qauv xeem?
A: Yog. Peb tuaj yeem muab tauEN 10204 3.1 daim ntawv pov thawj Hoobkas kuajrau kev txiav txim tsis tu ncua, thiab EN 10204 3.2 thib peb- daim ntawv pov thawj tshuaj xyuas tog raws li cov neeg siv khoom thov. Cov ntaub ntawv pov thawj CE tseem muaj rau European kev lis kev cai tshem tawm.
Q4: Dab tsi los tiv thaiv -corrosion txheej tuaj yeem hloov kho?
A: Peb txhawb ntau yam kev kho mob saum npoo av: cov roj pleev xim dub rau kev tiv thaiv ib ntus, 3PE / FBE los tiv thaiv- txheej txheej rau cov kav dej faus, kub-dip galvanizing rau sab nraum zoov cov qauv. Customized txheej thickness yog txais.
Q5: Koj tus MOQ thiab lub sijhawm xa khoom yog dab tsi?
A: MOQ yog 1 tuj. Cov khoom lag luam me me tuaj yeem xa tuaj tsis pub dhau 7 hnub ua haujlwm; customized txoj kab uas hla, thickness thiab ntev txiav txim yuav siv sij hawm 15-25 hnub ua hauj lwm. Peb txhawb FOB, CIF, CFR thiab DDP thoob ntiaj teb cov nqe lus lag luam.
Q6: Puas yog cov yeeb nkab no haum rau kev thauj mus los ua kua lossis tsuas yog siv rau kev tsim qauv?
A: EN10219 S355J2H yogtsim tshwj xeeb rau kev tsim qauv, tsis pom zoo rau kev thauj mus los ntev - roj/gas nruab nrab. Rau cov kav dej ua haujlwm, thov xaiv EN10218 lossis API 5L tus qauv kauv kav.
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