A269 vs A213 Stainless Steel Heat Exchanger Tubes - Standard Sib piv
Jun 11, 2025
Tso lus
Thaum xaiv cov hlau tsis muaj steel hlau rau cov khoom siv hluav taws xob, cov kws tsim khoom thiab cov neeg yuav khoom feem ntau ntsib ob qho kev qhia ASTM: A269 thiab A213. Txawm hais tias ob qho tib si cov qauv npog austenitic stainless hlau tubing, lawv cov ntawv thov, kev xav tau ntawm txhua yam, thiab kev ua siab ntev ntau lawm txawv heev.
Phau ntawv qhia no teb cov lus nug tseem ceeb ntawm cov neeg yuav khoom xws li:
ASTM A269 tubing siv rau dab tsi?
ASTM A213 Tube yog dab tsi?
A269 puas tuaj yeem hloov A213?
Dab tsi yog qhov txawv ntawm A213 thiab A269?
Dab tsi yogASTM A 269 Cov khoom siv?
ASTM A269 npog welded thiab seamless austenitic stainless hlau tubing npaj rau kev xeb dav dav - tiv thaiv kev pabcuam. Kev siv ib txwm: cov kab ua tshuaj lom neeg, ntsuas tubing thiab qis - mus rau - nruab nrab - cov tshuab xa dej siab.
Tube hom: seamless los yog welded
Qib: 304, 304L, 316, 316L, thiab lwm yam.
Nto: ci annealed los yog pickled
Kev kam rau siab: nruab nrab- phab ntsa nkaus xwb
Kev kho cua sov: yuav tsum tau ua rau welded raj
Kev ntsuas siab: hydrostatic lossis pneumatic raws li tus qauv; NDT raws li tau teev tseg
Dab tsi yogASTM A 213?
ASTM A213 qhia meej seamless stainless hlau tubing rau siab -kev pab kub - tshav kub exchangers, superheaters, boilers thiab condensers.
Tube hom: seamless nkaus xwb (OD txog 5 hauv / 127 hli)
Qib: TP304, TP316, TP321, TP347, thiab lwm yam.
Phab ntsa: yam tsawg kawg nkaus lossis nruab nrab phab ntsa tso cai
Tolerances: nruj me ntsis tolerances
Kev sim: yuav tsum tau ua kom flattening, flaring, hardness thiab grain -size tests
Tsim: siab- kub nkag thiab kev ntxhov siab- cov ntaub ntawv tawg (ib tus lej)
Sab -los ntawm - Sab Sib piv
| Feature | ASTM A 213 | ASTM A 269 Cov khoom siv |
|---|---|---|
| Hom | Seamless nkaus xwb | Seamless los yog welded |
| Daim ntawv thov | High-temp boiler, kub exchanger | General corrosion-cov kev pabcuam tiv taus |
| Phab ntsa thickness | Min. phab ntsa los yog avg. phab ntsa | Avg. phab ntsa nkaus xwb |
| Tolerances | Tighter | Txuj |
| Kev sim | NDT + mechanical tests | Kev ntsuas siab; NDT yog tias tau teev tseg |
| Nqi | Siab dua | Kev lag luam ntau dua |
| Hom kev siv | Superheated chav kab, condensers | Kev xa dej, txheej txheem kav dej |
Specifications rau A269 thiab A213 Stainless Steel Heat Exchanger Tubes
Lus Cim: Cov nqi ntawm cov tshuaj muaj pes tsawg leeg, cov khoom siv kho tshuab, thiab cov khoom siv lub cev zoo ib yam rau tib qib; Qhov sib txawv tshwm sim los ntawm cov qauv kev qhia tshwj xeeb, kev soj ntsuam cov cai, cov txheej txheem phab ntsa tuab, cov ntawv tso cai cov khoom, thiab cov kev pabcuam siv tau.
1. Chemical Composition (wt%) ntawm A269 thiab A213 SS Tubes
| Element | TP321 rau A-213 / A-269 |
|---|---|
| C | Tsawg dua lossis sib npaug li 0.08 |
| Mn | Tsawg dua lossis sib npaug li 2.00 |
| Si | Tsawg dua lossis sib npaug li 1.00 |
| P | Tsawg dua lossis sib npaug li 0.045 |
| S | Tsawg dua lossis sib npaug li 0.030 |
| Cr | 17.0‑19.0 |
| Ni | 9.0‑12.0 |
| N | Tsawg dua lossis sib npaug li 0.10 |
| Ti | 5×(C+N) ~ 0.70 |
Nco tseg: A-213 suav nrog qib H-series (TP321H, TP304H), thaum A-269 tsis suav nrog qib H-series.
2. Room-Tsub Mechanical Properties ntawm A269 thiab A213 SS Tubes (Kev daws teeb meem-annealed, yam tsawg kawg nkaus)
| Khoom | ASTM A-213 (SA-213) | ASTM A-269 Cov khoom lag luam |
|---|---|---|
| Tensile zog | Ntau dua lossis sib npaug li 515 MPa | Ntau dua lossis sib npaug li 515 MPa |
| 0.2% Yield zog | Ntau dua lossis sib npaug li 205 MPa | Ntau dua lossis sib npaug li 205 MPa |
| Elongation (50 hli ntsuas) | Ntau dua lossis sib npaug li 35% | Ntau dua lossis sib npaug li 35% |
| Max Brinell Hardness HBW | 192 | 192 |
3. Lub cev muaj zog ntawm A269 thiab A213 SS Tubes (Qhov zoo ntawm chav tsev kub)
| Khoom | Tus nqi |
|---|---|
| Qhov ntom | 7.90 g / cm³ |
| Melting Range | 1398-1427 ° C |
| Thermal conductivity | 16.1 W/(m·K) |
| Tshwj xeeb kub muaj peev xwm | 500 J / (kg·K) |
| Hluav taws xob Resistivity | 0.72 μΩ·m |
| Coefficient ntawm Thermal Expansion | 16.6 × 10⁻⁶ /℃(20-500 degree) |
Daim ntawv thov Scenario
| Txuj | Tej kev siv | Cov kev txwv tseem ceeb |
|---|---|---|
| ASTM A-213 (SA-213) | 1. Fais fab nroj tsuag boiler: superheater & reheater raj, ASME siab-ib feem cua sov qhov chaw2. Petrochemical high-pressure plhaub-thiab-tube tshav kub-exchanger bundles nyob rau hauv creep load3. High-temperature high-pressure heat transfer ua raws li ASME BPVC code | Seamless nkaus xwb. Yuav tsum tau rau boiler siab cua sov nto; A-269 yuav tsis hloov |
| ASTM A-269 Cov khoom lag luam | 1. Instrument tubing, hluav taws xob cua sov caij sheaths (OD6-25 mm nyias-wall), muaj qhov cub qhuav-firing tubes2. Nruab nrab-tsawg siab auxiliary heat-exchangers / coolers, non-boiler siab qhov chaw3. Kev kub-kub me me-ntev txheej txheem & cov kab sampling, BA huv qhov kev pab cuam, welded xaiv rau kev txuag nqi | Tsis pub rau ASME boiler superheater / reheater siab qhov chaw. Rau kev pabcuam siab, qhia meej: seamless + per-tube hydro-test ntawm kev yuav khoom |
A269 puas tuaj yeem hloov A213?
Tsis ncaj. A269 tsis yog tsim los rau siab -kub creep resistance lossis siab- ciam teb kev pabcuam. Txawm li cas los xij, rau qhov qis - cov tshuab hluav taws xob kub siab ua haujlwm hauv qab tus lej- ntsuas qhov ntsuas kub ntsuas - txheeb xyuas nrog ASME B31.3 tso cai rau- cov lus ntxhov siab (Table A-1/A-2) es tsis yog tus nqi ruaj khov - A269 welded tubes tuaj yeem ua tau zoo Ib txwm lees paub hloov pauv nrog tus tsim qauv engineer lossis tus thawj coj ua raws cai.
Cov ntsiab lus
A213 yog qhov tshwj xeeb rau seamless, siab -kub boiler thiab cua sov-exchanger hlab nrog kev sim nruj; A269 yog qhov dav dav - kev pabcuam tshwj xeeb rau seamless lossis welded austenitic tubing. Qhov kev xaiv yog tsav los ntawm kev khiav hauj lwm kub, siab thiab tus qauv tsim code.
FAQ
1.A269 puas tuaj yeem hloov A213 rau kev hloov pauv cua sov thiab kev pabcuam boiler?
No. A213 (SA213) tshwj xeeb yog tsim los rau siab -siab thiab siab- kub boiler siab qhov chaw suav nrog superheaters thiab reheaters nrog nruj tag nrho - lub cev tshuaj xyuas. A269 tsis tuaj yeem hloov A213 rau ASME boiler lub ntsiab cua kub qhov chaw vim qhov kev ua siab ntev thiab kev xaiv siab.
2.Qhov twg yog qhov zoo dua rau kev kub siab thiab kub siab, A213 lossis A269?
A213 ua tau zoo dua rau kev ua haujlwm siab -siab thiab siab - qhov kub thiab txias ua haujlwm. Nws txais yuav qhov tsawg kawg nkaus phab ntsa thickness tsim, 100% yuav tsum tsis yog -kev kuaj kev puas tsuaj rau ib lub raj, thiab txhawb siab -kub resistant H- series qib, uas ua tau raws li boiler thiab petrochemical siab - load cov kev pab cuam.
3.A269 puas tuaj yeem siv rau cov hlab ntsha kub hloov pauv?
A269 tsuas yog siv tau rau qhov nruab nrab thiab qis -siab auxiliary heat exchangers, tsis yog rau qhov chaw siab. Yog tias siv rau kev pabcuam lub nkoj siab, nws yuav tsum tau kho raws li cov raj seamless uas yuav tsum tau ua raws li -tube hydrostatic test, txwv tsis pub nws ua tsis tau raws li cov txheej txheem siab.
4.Qhov twg yog qhov tsim nyog rau hluav taws xob cua sov sheath hlab, A213 lossis A269?
A269 yog qhov tsim nyog dua. Hluav taws xob cua sov sheaths thiab cov qhov cub muaj cov raj feem ntau yog nruab nrab - tsis tshua muaj siab thiab cov cuab yeej pabcuam ib txwm muaj. A269 muaj du BA ci ntsa iab, meej qhov loj me thiab tus nqi zoo, ua kom tau raws li cov khoom siv cua sov xav tau.
Peb muab ASTM A213 thiab A269 stainless hlau tubing hauv qib 304, 316, 321, thiab 347 nrog:
EN 10204 3.1/3.2 ntawv pov thawj
U- xaiv txoj hlua khi
Pickled, polished, los yog ci -annealed nto
NDT, PMI, thiab hydro testing muaj
Tiv tauj peb hnub no rau ib qho kev tsocai, qauv MTC, lossis daim ntawv qhia kev.
Xa kev nug