1.4482 Stainless hlau yog dab tsi?

1.4482 stainless hlau, feem ntau hu ua 2003 los yog UNS S32003, yog ib tug lean duplex stainless hlau uas muaj ib tug optimized tshuav nyiaj li cas ntawm siab zog, zoo heev corrosion kuj, thiab zoo weldability. Nrog nws cov ferritic -austenitic microstructure, nws muab kwv yees li ob npaug ntawm cov txiaj ntsig zoo ntawm cov qib austenitic zoo li 316L, thaum siv txo cov nickel thiab molybdenum cov ntsiab lus. Nws txuas cov kev sib txawv ntawm cov qib lean duplex xws li 2304 thiab tus qauv duplex 2205, muab kev txhim kho corrosion kuj piv rau qib leaner thaum tswj tus nqi- ua tau zoo.

 

Cov qib lean duplex no yog tus qauv raws li cov txheej txheem thoob ntiaj teb tseem ceeb.

Txuj	Qib sib npaug
EN (Tebchaws Europe)	1.4482
ASTM / AISI (USA)	2003, UAS S32003
Lub Npe	Lean Duplex 2003

Nws muaj pes tsawg leeg yog optimized nrog chromium, molybdenum, thiab nitrogen rau txhim kho corrosion kuj.

Lub ntsiab	C	Si	Mn	P	S	Cr	Ni	Mo	N
Cov ntsiab lus (%)	Tsawg dua los yog sib npaug li 0.03	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua lossis sib npaug li 2.0	Tsawg dua los yog sib npaug li 0.03	Tsawg dua los yog sib npaug li 0.02	21.0 - 23.0	3.0 - 5.0	1.5 - 2.5	0.10 - 0.20

Nws muaj lub zog siab nrog zoo toughness thiab txhim kho 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	650 - 850 MPa	Ntau dua lossis sib npaug li 25%	Tsawg dua lossis sib npaug li 290	Ntau dua lossis sib npaug rau 100 (20 degree)

 

Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4482 / 2003

Siab zog:Muab kwv yees li ob npaug ntawm qhov kev tawm dag zog ntawm cov qib austenitic xws li 316L (450 MPa vs . 200 MPa), ua kom txo qis qhov hnyav thiab cov ntu nyias nyias hauv cov qauv siv.

Txhim kho Corrosion Resistance:Muab kev tiv thaiv corrosion mus txog ntawm 2205, nrog PREN feem ntau 28-30. Kev tiv thaiv zoo heev rau pitting thiab crevice corrosion nyob rau hauv ib puag ncig chloride.

Zoo Siab Corrosion Cracking Resistance:Cov qauv duplex muab qhov tsis zoo rau cov tshuaj chloride kev nyuaj siab corrosion cracking, superior rau qib austenitic.

Tus nqi -zoo:Cov ntsiab lus nickel thiab molybdenum qis dua 2205 muaj kev lag luam zoo thaum tswj kev ua haujlwm zoo.

 

Cov ntawv thov tseem ceeb:

Roj & Roj:Piping systems, flowlines, thiab cov txheej txheem cov cuab yeej nyob rau hauv nruab nrab corrosive ib puag ncig.

Kev ua tshuaj lom neeg:Tank, heat exchangers, thiab kav dej rau kev tuav tshuaj.

Marine & Offshore:Cov kav dej hiav txwv, cov twj tso kua mis, cov li qub, thiab cov khoom hauv thaj chaw txaws.

Desalination:Siab -cov kav dej thiab cov khoom evaporator.

Pulp & Ntawv:Cov txheej txheem cov khoom siv thiab cov tso tsheb hlau luam cia rau cov cawv hnyav.

Pollution Control:FGD scrubber Cheebtsam thiab ducting.

Structure Engineering:Cov choj thiab cov qauv nyob rau hauv ntug hiav txwv dej los yog kev lag luam ib puag ncig.

 

2003 (1.4482) piv rau 2205 (1.4462) thiab 316L (1.4404) li cas?
2003 muaj kev ua tau zoo ntawm lean duplex 2304 thiab tus qauv duplex 2205. Nws muab kwv yees li ob npaug ntawm cov khoom siv zog ntawm 316L (450 MPa vs . 200 MPa), zoo ib yam li 2205. Nws cov corrosion kuj (PREN 28-}30) yog qhov zoo dua li 31225L (PREN) thiab 6. (PIB 34–35). Nws muaj kev tiv thaiv zoo rau kev ntxhov siab corrosion ntau dua li 316L thiab 2205 hauv ntau qhov chaw. Thaum 2205 muab kev tiv thaiv corrosion zoo tshaj plaws rau cov ntawv thov hnyav tshaj plaws, 2003 muab cov txiaj ntsig zoo nrog rau kev ua tau zoo dua 316L. Nws yog feem ntau pheej yig dua 2205 thaum muab kev tiv thaiv corrosion txaus rau ntau daim ntawv thov uas yuav xav tau cov ntsiab lus siab dua alloy.

 

Dab tsi yog qhov kev txiav txim siab vuam rau xyoo 2003 (1.4482) stainless hlau?
2003 muaj qhov zoo weldability thiab tuaj yeem welded siv ntau txoj kev. Cov kev coj ua uas pom zoo suav nrog kev siv qhov sib txuam lossis me ntsis dhau ntawm - cov hlau muab tub lim (feem ntau yog 2209 hom), tswj cov khoom siv hluav taws xob cua sov (0.5-2.0 kJ/mm), thiab tswj qhov kub ntawm qhov sib txawv hauv qab 150℃. Shielding gas nrog nitrogen ntxiv (feem ntau Ar + 2-3% N2) pab tswj cov ntsiab lus nitrogen hauv cov hlau vuam. Preheating feem ntau tsis tas yuav tsum tau ua, thiab tom qab-weld kev kho cua sov tsis tsim nyog. Qhov sib npaug sib npaug muab kev tiv thaiv zoo rau kub tawg thiab tswj kom muaj txiaj ntsig zoo ferrite- austenite tshuav nyiaj li cas hauv thaj chaw weld. Rau qhov zoo tshaj plaws corrosion ua tau zoo nyob rau hauv ib puag ncig hnyav, ntau tshaj-alloyed muab tub lim hlau yuav raug txiav txim siab los xyuas kom meej qhov chaw vuam ua tau raws li qhov yuav tsum tau muaj corrosion.

 

Nrhiav kev ntseeg siab ntawm 1.4482 / 2003 Stainless Hlau?
GNEE Steel khoom siv Lean Duplex 2003 (1.4482) stainless hlau hauv phaj, ntawv, bar, yeeb nkab, thiab cov ntaub ntawv haum rau cov ntawv thov uas xav tau kev txhim kho corrosion ntawm tus nqi sib tw. Peb muab cov ntaub ntawv pov thawj tag nrho (EN 10204 3.1) thiab kev txhawb nqa suav nrog kev txiav, khoov, sib sau, thiab kev pabcuam vuam. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.