1.4462 Stainless hlau yog dab tsi?
Mar 17, 2026
Tso lus
1.4462 stainless hlau, feem ntau hu ua Duplex 2205 los yog UNS S32205, yog ferritic - austenitic duplex stainless hlau uas sib txuas cov txiaj ntsig ntawm ob theem. Nws muaj kwv yees li ob zaug lub zog tawm los ntawm tus qauv austenitic stainless hlau thiab zoo heev tiv thaiv kev ntxhov siab corrosion cracking, pitting, thiab crevice corrosion. Qhov kev sib xyaw ua ke ntawm lub zog siab thiab zoo dua corrosion ua rau nws zoo tagnrho rau kev thov rau kev siv tshuaj lom neeg, roj thiab roj, ib puag ncig marine, thiab pulp thiab ntawv industries.
Qib duplex no yog tus qauv raws li cov txheej txheem thoob ntiaj teb tseem ceeb.
| Txuj | Qib sib npaug |
|---|---|
| EN (Tebchaws Europe) | 1.4462 |
| ASTM / AISI (USA) | 2205, UA S32205 |
| JIS (Nyiv) | SUS329J3L |
| Lub Npe | TIAB SA 2205 |
Nws qhov sib npaug sib npaug muab kwv yees li 50/50 ferritic -austenitic microstructure, optimizing ob theem rau kev ua tau zoo.
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| Cov ntsiab lus (%) | Tsawg dua lossis sib npaug li 0.03 | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua los yog sib npaug rau 2.0 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.02 | 21.0 - 23.0 | 4.5 - 6.5 | 2.5 - 3.5 | 0.10 - 0.22 |
Nws muaj lub zog siab nrog rau zoo toughness thiab corrosion kuj.
| Khoom | Yield zog (Rp0.2) | Tensile zog (Rm) | Elongation (A) | Hardness (HB) | Kev cuam tshuam (J) |
|---|---|---|---|---|---|
| Tus nqi | Ntau dua lossis sib npaug li 450 MPa | 620 - 880 MPa | Ntau dua lossis sib npaug li 25% | Tsawg dua lossis sib npaug li 293 | Ntau dua lossis sib npaug rau 100 (20 degree) |
Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4462 / Duplex 2205
Siab zog thiab zoo heev Fatigue Resistance:Cov qauv duplex muab lub zog tawm los ua kom muaj zog, tso cai rau nyias, sib dua cov qauv thiab cov khoom, txo cov nqi khoom thiab qhov hnyav.
Qhov zoo tshaj plaws Corrosion Resistance:Muaj kev tiv thaiv zoo heev rau pitting, crevice corrosion, thiab kev ntxhov siab corrosion cracking (SCC), tshwj xeeb tshaj yog nyob rau hauv chloride ib puag ncig, nrog PREN feem ntau> 34.
Zoo Weldability:Yuav tau welded siv cov txheej txheem ib txwm, txawm hais tias yuav tsum tau saib xyuas kom muaj kev sib npaug ntawm microstructure hauv vuam thiab cua sov- thaj tsam cuam tshuam.
Zoo thermal conductivity:Cov thermal conductivity ntau dua li qib austenitic, muaj txiaj ntsig zoo rau kev siv cua sov.
Cov ntawv thov tseem ceeb:
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.
Tshuaj thiab Petrochemical:Tank, reactors, kab, thiab kav kav dej tuav corrosive media nrog rau cov tshuaj chlorides thiab acids.
Pulp & Ntawv Kev Lag Luam:Cov khoom siv tshuaj tua kab mob, tshuaj tua kab mob, thiab cov khoom siv tshuaj chloride -muaj cawv.
Marine & Offshore:Seawater piping systems, kiv cua shafts, desalination nroj tsuag, thiab marine hardware.
Pollution Control:FGD scrubbers, ducting, thiab chimney liners.
Structure Engineering:Txuas hniav, tso tsheb hlau luam, thiab architectural nta nyob rau hauv corrosive ib puag ncig.
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 tsis kam, ua rau nws haum rau cov mob hnyav dua. Txawm li cas los xij, 316L muaj qhov tsim tau zoo dua thiab yooj yim dua nyob 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.
Nrhiav kev ntseeg siab ntawm 1.4462 / Duplex 2205 Stainless Hlau?
GNEE Steel muab cov khoom siv siab -zoo Duplex 2205 (1.4462) stainless hlau hauv phaj, ntawv, yeeb nkab, raj, bar, thiab cov ntaub ntawv haum. Peb txhawb nqa koj cov haujlwm nrog cov kev pabcuam ua tiav suav nrog kev txiav, khoov, thiab vuam, thiab muab cov ntaub ntawv pov thawj tag nrho (EN 10204 3.1) kom ua raws li cov qauv thoob ntiaj teb. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.
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