Dab tsi yog cov khoom ntawm qib 1.4462 stainless hlau?
Mar 17, 2026
Tso lus
Taw qhia rau 1.4462 Stainless Hlau
1.4462 (Duplex 2205 / UNS S32205) duplex stainless hlau muaj qhov zoo sib npaug austenitic-ferritic dual-phase microstructure thiab qib ntawm cov txheej txheem duplex stainless hlau siv dav tshaj plaws. Nws lub zog tawm los yog kwv yees li ob npaug ntawm 316L austenitic stainless hlau. Nrog tus nqi PREN txij li 34 txog 36, nws pom zoo ua haujlwm zoo rau pitting corrosion, crevice corrosion thiab chloride-induced stress-corrosion cracking. Piv nrog rau 316L, nws muab cov kev tiv thaiv zoo tshaj plaws hauv nruab nrab-rau-siab corrosive chloride-muaj kev pabcuam ib puag ncig.
Specification ntawm 1.4462 stainless hlau
Qib sib npaug ntawm 1.4462 stainless hlau
| Txuj | Qib |
|---|---|
| EN European | 1.4462 / X2CrNiMoN22-5-3 |
| ASTM / UNS | 2205 / UAS S32205 |
| JIS | SUS329J3L |
| Suav GB | 022Cr22Ni5Mo3N |
| Lub Npe | TIAB SA 2205 |
Nco tseg: UNS S31803 yog tus qauv qub; S32205 yog qhov tshiab niaj hnub specification.
Chemical Chemical Cheebtsam (feem ntau feem pua), EN 10088-3) ntawm 1.4462 stainless hlau
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| Cov ntsiab lus | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 1.00 | Tsawg dua lossis sib npaug li 2.00 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.015 | 21.0‑23.0 | 4.5‑6.5 | 2.5‑3.5 | 0.10‑0.22 |
PREN ≈34–38. Ultra-low carbon tsis txhob cuam tshuam intergranular corrosion tom qab vuam. Balanced austenite-ferrite dual-theem qauv; nitrogen txhim kho ob lub zog thiab pitting-corrosion kuj. Corrosion kev ua tau zoo tshaj 316L nyob rau hauv ib puag ncig uas muaj chloride.
Mechanical Properties ntawm 1.4462 stainless hlau
| Khoom | Tus nqi |
|---|---|
| Tensile zog Rm | 640-840 MPa |
| 0.2% Offset Yield zog Rp0.2 | Ntau dua lossis sib npaug li 460 MPa |
| Elongation A | Ntau dua lossis sib npaug li 25% |
| Brinell Hardness HBW | Tsawg dua lossis sib npaug li 290 |
Lub zog tawm los yog kwv yees li ob zaug ntawm 316L austenitic steel, ua kom cov phab ntsa nyias nyias rau qhov hnyav-txuag. Tsis hardenable los ntawm kev kho cua sov. Zam kev pabcuam mus sij hawm ntev ntawm 300-950℃los tiv thaiv sigma-phase embrittlement. Kev daws annealing ntau: 1020-1100℃ua raws li dej nrawm.
Lub cev muaj zog (20 degree) ntawm 1.4462 stainless hlau
| Yam khoom | Parameter |
|---|---|
| Qhov ntom | 7.80 g / cm³ |
| Modulus ntawm Elasticity | 200 GPa |
| Coefficient ntawm Linear Expansion | 13.7 × 10⁻⁶ /℃(20-100 degree) |
| Thermal conductivity | 15.0 W/(m·K) |
| Melting ntau | 1380-1430 degree |
| Microstructure | 50/50 austenitic-ferritic duplex, sib nqus |
| Max nruam kev pab kub | Tsawg dua lossis sib npaug li 280 degree |
Cov yam ntxwv tseem ceeb ntawm 1.4462 / Duplex 2205
Dab tsi yog cov khoom zoo ntawm 1.4462 duplex stainless hlau?
1.4462 nta siab zog thiab zoo heev qaug zog kuj. Qhov tshwj xeeb duplex microstructure muab cov txiaj ntsig zoo tshaj plaws, ua kom cov khoom sib dua thiab sib dua. Qhov no zoo txo qhov hnyav tag nrho thiab txo cov nqi khoom siv rau cov haujlwm engineering.
Yuav ua li cas yog 1.4462 corrosion kuj nyob rau hauv hnyav chloride ib puag ncig?
1.4462 muab qhov zoo tshaj plaws kev tiv thaiv corrosion. Nrog rau tus nqi PREN raug tshaj 34, nws pom zoo ua haujlwm zoo rau pitting corrosion, crevice corrosion, thiab chloride-induced stress corrosion cracking (SCC), kom ruaj khov kev pab cuam nyob rau hauv siab -chloride corrosive tej yam kev mob.
Puas yog 1.4462 muaj kev txhim khu kev qha vuam?
Yog lawm, 1.4462 muaj qhov zoo weldability thiab txhawb nqa cov txheej txheem vuam zoo. Thaum lub sij hawm vuam, tsuas yog cov txheej txheem tsim nyog yuav tsum tswj kom muaj qhov sib npaug ferrite-austenite microstructure ntawm vuam seam thiab tshav kub- thaj tsam cuam tshuam, ua kom ruaj khov tom qab-weld kev ua tau zoo.
Dab tsi zoo li 1.4462 muaj rau kev sib pauv cua sov?
1.4462 muaj cov thermal conductivity zoo heev. Piv nrog rau cov tsoos austenitic stainless steels, nws muaj ntau dua tshav kub hloov efficiency, uas yog heev haum rau tshav kub exchangers thiab thermal conductivity industrial khoom.
Daim ntawv thov ntawm 1.4462 / Duplex 2205
1. Roj & Roj:Cov hlab ntsha siab, cov kav dej, cov dej ntws, cov khoom siv hluav taws xob sib txawv, thiab cov khoom siv sab nraud.
2.Chemical & Petrochemical:Tank, reactors, kab, thiab kav kav dej tuav corrosive media nrog rau cov tshuaj chlorides thiab acids.
3.Pulp & Ntawv Kev Lag Luam:Cov khoom siv tshuaj tua kab mob, tshuaj tua kab mob, thiab cov khoom siv tshuaj chloride -muaj cawv.
4. Marine & Offshore:Seawater piping systems, kiv cua shafts, desalination nroj tsuag, thiab marine hardware.
5.Pollution Control:FGD scrubbers, ducting, thiab chimney liners.
6.Structural Engineering:Cov choj, cov tso tsheb hlau luam, thiab cov yam ntxwv ntawm cov vaj tse nyob hauv ib puag ncig corrosive.
Seawater desalination kav dej
offshore oil-gas platforms
high-pressure txheej txheem piping
Supplier Introductionua 1,4462stainless hlau
1.4462 stainless hlau raj
1.4462 stainless hlau daim hlau
1.4462 stainless hlau coils
Peb txhawb nqa cov qauv khoom, kev txiav txim mus sib hais thiab cov kev pabcuam sib sib zog nqus. Yog tias koj xav tau kev txhawb nqa txog qhov project, kev pom zoo xaiv cov khoom lossis cov lus hais txog qhov project, thov koj xav tiv tauj peb, thiab peb yuav muab cov kev daws teeb meem rau koj.
FAQ
Duplex 2205 (1.4462) piv rau 316L (1.4404) li cas?
Duplex 2205 muaj kwv yees li ob npaug ntawm qhov kev tawm dag zog ntawm 316L (450 MPa vs . 200 MPa), muab qhov hnyav hnyav -txuag lub peev xwm hauv cov qauv tsim thiab tso cai rau cov phab ntsa nyias nyias hauv siab- cov khoom siv. Nws kuj qhia tau tias muaj kev tiv thaiv zoo tshaj rau kev ntxhov siab corrosion cracking (SCC) hauv chloride ib puag ncig, qhov twg 316L yuav ua tsis tiav. Nrog PREN ntawm 34-35 vs. 316L's PREN ntawm 24-26, 2205 muaj qhov zoo dua pitting thiab crevice corrosion kuj, ua rau nws tsim nyog rau cov mob hnyav dua. Txawm li cas los xij, 316L muaj qhov tsim tau zoo dua thiab yooj yim dua rau hauv cov ntu nyias. Qhov kev xaiv nyob ntawm cov ntawv thov tshwj xeeb, nrog 2205 xaiv qhov twg nws lub zog siab dua thiab kev tiv thaiv corrosion ua pov thawj tus nqi hwm.
Dab tsi yog cov ntsiab lus tseem ceeb thaum vuam 1.4462 duplex stainless hlau?
Lub hom phiaj tseem ceeb yog khaws cia qhov sib npaug ntawm 50/50 ferrite-austenite microstructure nyob rau hauv vuam thiab cua sov- thaj tsam cuam tshuam kom muaj kev tiv thaiv corrosion thiab txhua yam khoom. Qhov no yuav tsum tau siv qhov sib txuam lossis ntau dua - alloyed muab tub lim hlau (feem ntau nrog cov ntsiab lus nickel siab dua), tswj cov cua sov kom tsis txhob muaj cov ferrite ntau dhau los lossis nag lossis daus ntawm nkig intermetallic theem, thiab ua kom cov roj tiv thaiv zoo (feem ntau Ar + 2-5% N2) kom tswj cov qib nitrogen. Thaum tshav kub kub input yuav tsum tswj ntawm 0.5-2.5 kJ/mm, nrog interpass kub hauv qab no 150 degree. Tom qab vuam qhov txias txias yuav tsum tau tswj, thiab cov khoom yuav tsum tsis txhob tuav nyob rau hauv qhov kub thiab txias (kwv yees. 600-1000 degree) rau ncua sij hawm kom tsis txhob muaj cov theem ntawm sigma.
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