1.4462 Stainless hlau yog dab tsi?
Jan 14, 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 cov qauv austenitic stainless hlau thiab ua haujlwm zoo heev rau kev ntxhov siab corrosion cracking, pitting, thiab crevice corrosion, ua rau nws zoo tagnrho rau kev thov rau kev siv tshuaj, roj thiab roj, 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 |
Nws qhov sib npaug sib npaug muab kwv yees li 50/50 ferritic -austenitic microstructure.
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | N |
|---|---|---|---|---|---|---|---|---|---|
| Cov ntsiab lus (%) | ≤ 0.03 | ≤ 1.0 | ≤ 2.0 | ≤ 0.035 | ≤ 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 | ≥450 MPa | 620 - 880 MPa | ≥ 25% | ≤ 293 | ≥100 |
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 siv.
Qhov zoo tshaj plaws Corrosion Resistance:Muaj kev tiv thaiv zoo rau pitting, crevice corrosion, thiab kev nyuaj siab corrosion cracking (SCC), tshwj xeeb tshaj yog nyob rau hauv chloride ib puag ncig.
Zoo Weldability:Yuav tsum tau welded siv cov txheej txheem ntau, tab sis yuav tsum tau saib xyuas kom muaj kev sib npaug microstructure nyob rau hauv weld cheeb tsam.
Cov ntawv thov tseem ceeb:
Roj & Roj:Cov hlab ntsha siab, cov kav dej, cov khoom siv hluav taws xob, thiab cov khoom siv sab nraud.
Tshuaj thiab Petrochemical:Tank, reactors, thiab kav kav dej tuav cov xov xwm corrosive.
Pulp & Ntawv Kev Lag Luam:Digesters, cov khoom siv tshuaj dawb.
Marine & Offshore:Seawater piping systems, kiv cua shafts, thiab desalination nroj tsuag.
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, muab qhov hnyav hnyav -txuag muaj peev xwm hauv kev tsim qauv. Nws kuj qhia tau tias muaj kev tiv thaiv zoo tshaj rau kev ntxhov siab corrosion cracking (SCC) hauv chloride ib puag ncig. Thaum ob qho tib si muaj qhov zoo pitting tsis kam, 2205 feem ntau muaj ntau dua Pitting Resistance Equivalent Number (PREN), ua rau nws haum rau cov mob hnyav dua li 316L.
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 hauv qhov vuam thiab cua sov- thaj tsam cuam tshuam. Qhov no yuav tsum tau siv qhov sib txuam lossis ntau tshaj - alloyed muab tub lim hlau, tswj cov khoom siv hluav taws xob kom tsis txhob muaj qoob loo ntau dhau, thiab ua kom muaj kev tiv thaiv zoo kom tsis txhob muaj nitrogen. Tom qab-weld txias tus nqi kuj tseem ceeb heev kom tsis txhob muaj kev cuam tshuam ntawm intermetallic theem.
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 cov phaj, yeeb nkab, thiab cov ntawv bar. Peb txhawb nqa koj cov haujlwm nrog cov kev pabcuam ua haujlwm thiab muab cov ntaub ntawv pov thawj tag nrho kom ua raws li cov qauv thoob ntiaj teb. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.
Xa kev nug