1.4466 Stainless hlau yog dab tsi?

1.4466 stainless hlau, feem ntau hu ua Lean Duplex 2202 los yog UNS S32202, yog ib tug lean duplex stainless hlau nrog ib tug balanced ferritic - austenitic microstructure. Nws muaj tus nqi -txoj kev zoo rau cov qauv duplex qib, muab lub zog siab dua li austenitic steels thiab zoo tiv thaiv kev ntxhov siab corrosion tawg, ua rau nws tsim nyog rau cov qauv, tshuaj, thiab kev kho dej.

 

Qhov kev lag luam duplex qib no yog tus qauv raws li cov npe tseem ceeb thoob ntiaj teb.

Txuj	Qib sib npaug
EN (Tebchaws Europe)	1.4466
ASTM / AISI (USA)	Lean Duplex 2202, UNS S32202
Lub Npe	Lean Duplex 2202

Nws cov ntsiab lus qis alloy piv rau cov qauv duplex qib txo tus nqi thaum tuav cov khoom muaj txiaj ntsig.

Lub ntsiab	C	Si	Mn	P	S	Cr	Ni	Mo	N
Cov ntsiab lus (%)	≤ 0.03	≤ 1.0	≤ 2.0	≤ 0.035	≤ 0.01	21.5 - 24.0	1.0 - 3.0	0.10 - 0.80	0.10 - 0.22

Nws muaj lub zog ntau dua li cov qib austenitic nrog rau nruab nrab corrosion kuj.

Khoom	Yield zog (Rp0.2)	Tensile zog (Rm)	Elongation (A)	Hardness (HB)
Tus nqi	≥450 MPa	640 - 880 MPa	≥ 25%	≤ 290

 

Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4466 / Lean Duplex 2202

Siab zog thiab zoo toughness:Muab kwv yees li ob npaug ntawm lub zog tawm los ntawm 304 stainless hlau, tso cai rau qhov hnyav thiab tus nqi txuag hauv cov qauv tsim.

Zoo Resistance to Stress Corrosion Cracking (SCC):Ua tau zoo hauv cov tshuaj chloride- muaj ib puag ncig uas cov qib austenitic tuaj yeem raug rau SCC.

Tus nqi -zoo:Tsawg nickel thiab molybdenum cov ntsiab lus ua rau nws pheej yig dua li cov qauv duplex zoo li 2205.

 

Cov ntawv thov tseem ceeb:

Structure thiab Architectural:Txuas hniav, façades, thiab cov khoom txhawb nqa hauv cov huab cua nruj heev.

Kev kho dej:Tanks, piping, thiab cov khoom hauv desalination thiab cov nroj tsuag dej khib nyiab.

Kev ua tshuaj lom neeg:Cov khoom siv rau me me mus rau nruab nrab corrosive media.

Roj & Roj:Cov kav dej thiab tso tsheb hlau luam hauv kev pabcuam qaub qis qis.

 

Lean Duplex 2202 (1.4466) piv rau 304L (1.4307) li cas?
Lean Duplex 2202 muaj qhov ua kom muaj zog ntau dua (kwv yees li ob zaug ntawm 304L) thiab ua haujlwm zoo dua rau kev ntxhov siab corrosion cracking hauv chloride ib puag ncig. Thaum 304L tuaj yeem muaj qhov zoo dua qub corrosion kuj nyob rau hauv qee qhov chaw acidic, Lean Duplex 2202 muab lub zog zoo dua - rau - tus nqi piv thiab feem ntau yog xaiv rau cov qauv siv uas qhov hnyav txuag thiab SCC kuj tseem ceeb.

 

Dab tsi yog qhov kev txiav txim siab vuam rau Lean Duplex 2202 stainless hlau?
Vuam Lean Duplex 2202 yuav tsum tswj kom muaj qhov sib npaug microstructure. Kev siv cov khoom sib txuam lossis ntau dua - cov hlau alloyed muab tub lim, tswj cov khoom siv hluav taws xob, thiab cov roj tiv thaiv kom zoo (feem ntau argon-raws li nrog nitrogen ntxiv) yog qhov tseem ceeb. Tom qab-vuam tu yog pom zoo kom rov ua kom corrosion. Nws yog feem ntau weldable dua li cov qauv duplex qib vim nws cov ntsiab lus qis alloy.

 

Nrhiav kev ntseeg siab ntawm 1.4466 / Lean Duplex 2202 Stainless Hlau?
GNEE Steel cov khoom siv tus nqi -zoo Lean Duplex 2202 (1.4466) stainless hlau hauv phaj, bar, thiab yeeb nkab cov ntaub ntawv rau kev tsim thiab kev lag luam. Peb muab tag nrho cov ntaub ntawv pov thawj thiab kev txhawb nqa. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.