TS EN 10217 -1 Welded Steel Tubes rau Lub Hom Phiaj Siab - Carbon Steel Boiler Steel Yeeb Nkab
Taw qhia
EN 10217-1 yog aEuropean harmonized tus qauvuas qhia txog cov txheej txheem xa khoom rauhluav taws xob welded thiab submerged arc weldednon- alloy thiab alloy steel tubes (cov kav dej) nrogqhia txog qhov kub thiab txias. Nws yog ib feem ntawm EN 10217 series (Tshooj 1-7), uas npog ntau yam ntawm cov raj siab.
Tubes ua raws li tus qauv no feem ntau yog tsim los rausiab thiab siab -kev pabcuam kub, ua rau lawv haum rauboilers, tshav kub exchangers, thiab superheatersnyob rau hauv fais fab nroj tsuag thiab industrial installation. Tsis zoo li ASTM cov qauv uas feem ntau muaj kev xaiv qib raws li lub zog (piv txwv li, A106 B), EN 10217-1 sivsteel qib designations(piv txwv li, P235GH, P265GH) uas qhia covyam tsawg kawg nkaus yield zogthiab covhom ntawv thov.
Cov yam ntxwv tseem ceeb
Khoom siv:Tsis yog- alloy thiab alloy zoo steels uas tau teev tseg siab - qhov kub thiab txias.
Kev tsim khoom: Hluav taws xob vuam (EW)los yogSubmerged Arc Welding (SAW).
Khoom tseem ceeb: Guaranteed mechanical zog ntawm chav tsev kub thiab nyob rau hauv siab kub(feem ntau mus txog 300-500 degree).
Txheem: TS EN 10217-1: Welded steel tubes rau lub hom phiaj siab - Kev xa tawm cov xwm txheej - Ntu 1: Tsis yog- alloy steel hlab nrog cov khoom ntsuas kub hauv chav.
Nco tseg: Txawm tias "chav kub" nyob rau hauv ib feem lub npe, tus qauv suav nrog cov qib (xws li PxxxGH) nrog rau qhov ntsuas kub siab. Nws yog ib qho kev faib nuance.
Daim Ntawv Thov Tseem Ceeb:Cov khoom siv siab xws li boilers, superheaters, heat exchangers, thiab cov kav dej sib txuas ua haujlwm ntawm qhov kub siab.
Common Steel Qib & Daim Ntawv Thov
Feem ntau cov boiler -qib cuam tshuam hauv EN 10217-1 yogQib "GH"., qhov twg:
P: Stands for "Pressure" purpose.
235/265/...: CovYam tsawg kawg nkaus yield zog (ReH)nyob rau hauv MPa ntawm chav tsev kub.
GH: Sawv rauGases Hochdruck (Gases Siab Siab), qhia qhov tsim nyog rau kev pabcuam kub siab.
| Qib Qib | Yam tsawg kawg Yield Strength (ReH) | Daim ntawv thov nyob rau hauv Boiler Systems |
|---|---|---|
| P235GH | 235 MPa rau | Tsawg mus rau nruab nrab siab boiler qhov chaw, headers, general siab piping. |
| P265GH | 265 MPa rau | Dav siv rau boiler raj, superheaters, thiab siab hlab ntsha. |
| P295 HWM | 295 MPa ua | Rau siab dua seem ntawm boilers thiab tshav kub exchangers. |
Chemical Composition (Maximum %, Melt Analysis - Common Grade)
| Lub ntsiab | P235GH | P265GH | P295 HWM | Sau ntawv |
|---|---|---|---|---|
| Cov pa roj carbon (C) | 0.16 | 0.20 | 0.20 | Tswj rau weldability thiab lub zog. |
| Silicon (Si) | 0.40 | 0.40 | 0.40 | Deoxidizer. |
| Manganese (Mn) | 1.20 | 1.40 | 1.50 | Lub hauv paus tseem ceeb ntxiv dag zog. |
| Phosphorus (P) | 0.025 | 0.025 | 0.025 | Impurity, khaws cia tsawg heev. |
| Sulfur (S) | 0.015 | 0.015 | 0.015 | Impurity, khaws cia tsawg heev. |
| Aluminium (zeeg) | 0.020 min | 0.020 min | 0.020 min | Rau kev ua kom zoo ntawm cov nplej (zoo grain xyaum). |
| Nitrogen (N) | 0.012 | 0.012 | 0.012 | Tswj kom tsis txhob muaj kev laus. |
Lus Cim: Cov hlau tau raug tua tag nrho thiab ua rau kev ua haujlwm zoo. Kev tsom xam cov khoom tso cai rau kev ua siab ntev.
Mechanical Properties ntawm Chav Kub
| Khoom | Cim | P235GH | P265GH | P295 HWM | Test Standard |
|---|---|---|---|---|---|
| Yield zog (min) | ReH | 235 MPa rau | 265 MPa rau | 295 MPa ua | TS EN ISO 6892-1: 1 |
| Tensile zog | Rm | 360-510 MPa | 410-530 MPa | 430-560 MPa | TS EN ISO 6892-1: 1 |
| Elongation (min) | A | 25% (ntawm L0=5.65√So) | 23% | 22% | TS EN ISO 6892-1: 1 |
| Lub zog cuam tshuam (min) | KV | Kev Xav Tau | Kev Xav Tau | Kev Xav Tau | TS EN ISO 148-1 |
| Yog tias txiav txim: Ntau dua lossis sib npaug rau 27 J avg ntawm 20 degree | Yog tias txiav txim: Ntau dua lossis sib npaug rau 27 J avg ntawm 20 degree | Yog tias txiav txim: Ntau dua lossis sib npaug rau 27 J avg ntawm 0 degree |
Impact Test Note: Rau qhov qis- daim ntawv thov kub lossis cov kev xav tau kev nyab xeeb tshwj xeeb, Charpy V- qhov ntsuas qhov cuam tshuam tuaj yeem teev nyob rau hauv daim ntawv xaj ntawm qhov ntsuas kub.
Cov Khoom Kub Kub Siab (Specified Values)
Ib qho tseem ceeb ntawm EN 10217-1 "GH" qib yog kev muabpov thawj lub zog (Rp0.2) qhov tseem ceeb ntawm qhov kub siab, uas yog qhov tseem ceeb rau kev tsim boiler.
| Qib |Pov thawj muaj zog ntawm qhov kub thiab txias, Rp0.2 (min, MPa) |
| :--- | :--- | :--- | :--- | :--- |
| | 50 degree | 100 degree | 150 degree | 200 degree | 250 degree | 300 degree |
| P235GH | 195 | 175 | 155 | 135 | 125 | 115 |
| P265GH | 235 | 215 | 195 | 175 | 165 | 155 |
| P295 HWM | 255 | 235 | 215 | 195 | 185 | 175 |
Nco tseg: Cov nqi yog rau siv. Cov txheej txheem tiav muab cov txiaj ntsig txog li 500 degree. Kev tsim qauv yuav tsum siv qhov tseem ceeb los ntawm cov qauv tsim qauv.
Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT)
Yuav tsum tau NDT yuav tsum tau ua kom muaj kev ncaj ncees weld:
Seam Weld Test:Tag nrho longitudinal weld seam yog raug rauKev ntsuas tam sim no (ECT)los yogKev kuaj ultrasonic (UT).
Optional Higher Class:Tubes tuaj yeem muab rauChav I(tus qauv kuaj) lossis qhov nruj duaChav II, uas yuav xav tau kev kuaj ntxiv lossis ntau dua (piv txwv li, puv -lub cev UT, radiography) raws li tau pom zoo.
Tej kev siv
Dej-Tube Boilers:Evaporator tubes, risers, downcomers.
Superheaters thiab Reheaters:Siab -cov kav dej kub.
Boiler Headers thiab Drums:Lub ntsiab siab sau / faib cov ntsiab lus.
Kub Exchangers thiab Condenser.
General Pressure Pipinghauv kev tsim hluav taws xob thiab cov txheej txheem kev lag luam.
Kev sib piv nrog Cov Qauv Tseem Ceeb ASTM
| Feature | EN 10217-1 (piv txwv li, P265GH) | ASTM A178 / A192 Boiler Tubes | ASTM A671 (Plate Pipe) |
|---|---|---|---|
| Keeb kwm | European (CEN) Txuj | American (ASTM) Txuj | American (ASTM) Txuj |
| Hom ntawv | Welded Tube (EW, SAW) | Seamlesslos yog ERW Tube | Welded Phaj Pipe(EFW) |
| Cov ntaub ntawv tseem ceeb muab | Chav & Ua Haujlwm Siab Tshaj Tawm / Pov Thawj Lub Zog | Chav Temp Tensile, Hydrostatic Test Siab | Chav Temp Tensile, xaiv qhov cuam tshuam |
| Daim Ntawv Thov Kev Sib Tham | European -tsim boilers, Kub exchangers | Boiler raj, Superheater raj hauv Asmeskas tsim | Loj - taub hau taub hau, Cov hlab ntsha siab |
| Qib Qib | Raws li Min YS (PxxxGH) | Raws li chemistry & tensile (A, C, D) | Raws li YS & condition (CC60, CH100, CF66) |
Certification & Marking
Ntawv pov thawj:Tubes yog muab nrog ib tugKev soj ntsuam daim ntawv pov thawj 3.1raws liTS EN 10204Kev ua raws li EN 10217-1.
Marking:Txhua lub raj los yog pob khoom yog cim meej nrog:
Chaw tsim tshuaj paus lub npe/trademark
Qib (piv txwv li, P265GH)
Txheem (EN 10217-1)
Loj
Kub naj npawb
Yeem: Chav kawm (I lossis II) thiab ntsuas siab.
Lus Cim Tseem Ceeb:EN 10217-1 yog aharmonized qauvraws li European Pressure Equipment Directive (PED). Ua raws li nws muab apresumption ntawm conformitynrog rau qhov tseem ceeb ntawm kev nyab xeeb ntawm PED rau cov ntaub ntawv npog, ua kom yooj yim rau CE cim ntawm cov khoom siv siab. Kev xaiv yuav tsum ib txwm ua raws li cov qauv kev cai tshiab thiab cov qauv tsim tshwj xeeb (xws li EN 12952 rau dej- raj boilers).
