1.4460 Stainless hlau yog dab tsi?
Feb 25, 2026
Tso lus
1.4460 stainless hlau, feem ntau hu ua 329 los yog UNS S32900, yog ib qho thaum ntxov - tiam ferritic - austenitic duplex stainless hlau. Nws ua ke lub zog thiab corrosion kuj ntawm ob theem ferritic thiab austenitic, muab kev ua haujlwm zoo rau kev ntxhov siab corrosion tawg thiab nruab nrab pitting kuj. Txawm hais tias feem ntau hloov pauv los ntawm cov qib duplex niaj hnub zoo li 2205, nws tseem siv tau rau hauv cov ntawv tshwj xeeb xws li kev ua tshuaj, cov khoom siv hluav taws xob, thiab cov khoom siv.
Qib duplex no yog tus qauv raws li cov txheej txheem thoob ntiaj teb tseem ceeb.
| Txuj | Qib sib npaug |
|---|---|
| EN (Tebchaws Europe) | 1.4460 |
| ASTM / AISI (USA) | 329, SIB 32900 |
| JIS (Nyiv) | SUS 329 |
| KS (Korea) | STS 329 |
Nws muaj pes tsawg leeg muab sib xyaw ferritic -austenitic microstructure.
| Element | C | Si | Mn | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| Cov ntsiab lus (%) | ≤ 0.08 | ≤ 1.0 | ≤ 2.0 | ≤ 0.04 | ≤ 0.03 | 23.0 - 28.0 | 2.5 - 5.0 | 1.0 - 2.0 |
Nws muaj lub zog ntau dua li cov qib austenitic tab sis nrog qee qhov kev lag luam -tawm hauv toughness thiab weldability.
| Khoom | Yield zog (Rp0.2) | Tensile zog (Rm) | Elongation (A) | Hardness (HB) |
|---|---|---|---|---|
| Tus nqi | ≥450 MPa | 620 - 850 MPa | ≥ 20% | ≤ 300 |
Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4460 / 329
Siab zog thiab zoo Stress Corrosion Cracking Resistance:Muab kwv yees li ob npaug ntawm qhov kev tawm dag zog ntawm cov qauv austenitic steels thiab ua tau zoo nyob rau hauv chloride ib puag ncig qhov kev ntxhov siab corrosion cracking yog ib qho kev txhawj xeeb.
Nruab nrab Corrosion Resistance:Muab qhov zoo dua pitting thiab crevice corrosion tsis kam tshaj 304/316 nyob rau hauv ntau qhov chaw, tab sis tsawg dua niaj hnub duplex qib zoo li 2205.
Magnetic thiab Weldable:Exhibits magnetic zog vim nws theem ferritic. Weldable nrog kev saib xyuas, txawm tias tom qab -weld kev kho cua sov yuav tsum tau ua kom rov zoo dua corrosion.
Cov ntawv thov tseem ceeb:
Kev ua tshuaj lom neeg:Tank, heat exchangers, thiab piping rau nruab nrab corrosive media.
Roj & Roj:Thaum ntxov- cov khoom tsim rau cov kev pabcuam qaub thiab cov ntawv thov sab nraud.
Pulp & Ntawv Kev Lag Luam:Cov cuab yeej raug tshuaj chloride- muaj cawv.
General Engineering:Cov khoom siv uas xav tau lub zog siab dua li cov hlau austenitic.
329 (1.4460) piv rau niaj hnub duplex 2205 (1.4462) li cas?
Qib 329 yog ib qho qub duplex alloy nrog qis alloy cov ntsiab lus, tshwj xeeb tshaj yog nyob rau hauv npib tsib xee thiab molybdenum, uas ua rau qis corrosion kuj thiab toughness piv rau 2205. 2205 muaj zoo sib npaug microstructure, superior pitting kuj (siab dua PREN), thiab txhim kho weldability. 2205 tau hloov loj 329 nyob rau hauv feem ntau cov ntawv thov vim nws txhim khu kev qha.
Dab tsi yog qhov kev txiav txim siab vuam rau 329 stainless hlau?
Vuam 329 yuav tsum tau ceev faj tswj kom muaj kev sib npaug ntawm microstructure thiab tsis txhob muaj cov ntsiab lus ferrite ntau dhau ntawm cov hlau vuam, uas tuaj yeem ua rau txo qhov tawv thiab corrosion kuj. Kev siv cov khoom sib txuam lossis ntau tshaj - cov hlau alloyed muab tub lim, tswj cov cua sov, thiab ua tau tom qab-weld annealing yog pom zoo. Nws tsis tshua zam txim rau weld dua li niaj hnub duplex qib.
Nrhiav rau kev ntseeg siab ntawm 1.4460 / 329 Stainless Hlau?
GNEE Steel muab 329 (1.4460) duplex stainless hlau nyob rau hauv phaj, bar, thiab yeeb nkab cov ntaub ntawv rau daim ntaub ntawv uas nws tshwj xeeb ua ke ntawm lub zog thiab corrosion kuj yuav tsum tau. Peb muab cov ntaub ntawv pov thawj thiab kev txhawb nqa. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.
Xa kev nug