2205 Duplex Stainless Hlau: Muaj pes tsawg leeg, txhua yam thiab lub cev muaj zog

Dab tsi yog 2205 Duplex Stainless Hlau?

2205 (S32205 / 1.4462) yog cov txheej txheem duplex stainless hlau siv dav tshaj plaws hauv kev lag luam. Nws cov qauv metallographic muaj kwv yees li 50% austenite thiab 50% ferrite hauv qhov sib npaug, sib txuas cov siab tawv ntawm austenitic steel nrog lub zog siab thiab kev ntxhov siab-corrosion tsis kam ntawm ferritic steel. Kev txhawb nqa los ntawm high-chromium, molybdenum thiab nitrogen alloying, nws ua tiav PREN tus nqi ntawm 34-36, xa cov kev tiv thaiv zoo tshaj plaws rau chloride pitting thiab crevice corrosion piv nrog 316L austenitic stainless hlau.

 

Lub zog tawm ntawm 2205 yog kwv yees li ob zaug ntawm 316L. Nyob rau hauv cov xwm txheej sib npaug sib npaug, nws tso cai rau txo qis ntawm cov txheej txheem phab ntsa tuab kom paub txog kev tsim qauv, txo nqi thiab txhim kho kev ua haujlwm. Nws nthuav tawm qhov zoo tshaj plaws corrosion tiv thaiv dej hiav txwv, muaj ntsev-muaj xov xwm, tsis muaj zog acids thiab flue-gas desulfurization ib puag ncig, thiab yog dav siv nyob rau hauv marine engineering, roj-gas khoom, tshuaj kua system thiab ib puag ncig-tiv thaiv desulfurization units.

 

Qib sib npaug ntawm 2205 Duplex Stainless Hlau

Standard System	Qib
UNS (USA)	S32205 (yav tas los npe S31803)
ASTM Phaj / Sheet	A240 2205
ASTM Tube / Yeeb Nkab	A789 / A790 S32205
ASTM Forging	A182 F60
EN (Tebchaws Europe)	1.4462 / X2CrNiMoN22-5-3
GB (Tuam Tshoj)	022Cr22Ni5Mo3N (S32205)

 

Tshuaj muaj pes tsawg leeg ntawm 2205 Duplex Stainless hlau

Element	Kev sib xyaw ua ke
Cov pa roj carbon (C)	Tsawg dua lossis sib npaug li 0.03
Manganese (Mn)	Tsawg dua lossis sib npaug li 2.00
Silicon (Si)	Tsawg dua lossis sib npaug li 1.00
Phosphorus (P)	Tsawg dua lossis sib npaug li 0.030
Sulfur (S)	Tsawg dua lossis sib npaug li 0.020
Chromium (Cr)	22.00‑23.00
Nickel (Ni)	4.50‑6.50
Molybdenum (hli)	3.00‑3.50
Nitrogen (N)	0.14‑0.20

 

Lub cev muaj zog (Hloov qhov tseem ceeb ntawm 20 degree) ntawm 2205 Duplex Stainless Hlau

Khoom	Tus nqi	Lus hais
Qhov ntom	7.80 g / cm³
Melting Range	1350-1390 degree
Modulus ntawm Elasticity	190 gpa ua
Thermal conductivity	14.0 W/(m·K)	Thaum 20 degree
Lub ntsiab lus Coefficient ntawm Linear Thermal Expansion	13.7 × 10⁻⁶ / degree	20-100 degree
Tshwj xeeb kub muaj peev xwm	450 J / (kg· degree)	20-100 degree

 

Mechanical Properties ntawm 2205 Duplex Stainless Hlau

Khoom	Tus nqi
Tensile zog	Ntau dua lossis sib npaug li 655 MPa
0.2% Offset Yield zog	Ntau dua lossis sib npaug li 450 MPa
Elongation	Ntau dua lossis sib npaug li 25%
Brinell Hardness	Tsawg dua lossis sib npaug li 293 HB

 

Cov yam ntxwv tseem ceeb ntawm 2205 Duplex Stainless Hlau

1. Qhov zoo tshaj plaws corrosion ntawm 2205 duplex stainless hlau yog dab tsi?

2205 duplex stainless hlau muaj chloride corrosion kuj zoo heev. Nrog rau kev sib xyaw alloying tsim ntawm chromium, molybdenum thiab nitrogen, nws tus nqi PREN nce mus txog 34-36. Nws muaj qhov zoo dua pitting thiab crevice corrosion tsis kam tshaj 316L stainless hlau, thiab tuaj yeem tiv taus dej hiav txwv thiab siab - ntsev corrosive media, uas yog heev haum rau marine engineering, seawater desalination thiab lwm yam high-chloride ua hauj lwm tej yam kev mob.

 

2. Puas yog 2205 duplex steel muaj nqi zoo hauv daim ntawv thov engineering?

Nws muaj cov txiaj ntsig zoo ntawm tus nqi. Lub zog tawm ntawm 2205 yog li ob zaug ntawm 316L austenitic stainless hlau. Nyob rau hauv tib lub siab-cov kabmob ua haujlwm, cov phab ntsa thiab phaj tuab tuaj yeem txo qis, uas txo cov khoom hnyav thiab cov khoom siv raw, txuag nqi engineering. Lub caij no, nws cov ntsiab lus qis nickel ua rau nws tsis tshua muaj kev cuam tshuam los ntawm nickel tus nqi hloov pauv nrog cov nqi siab dua.

 

3. Yuav ua li cas yog qhov kev nyuaj siab corrosion kuj ntawm 2205 duplex stainless hlau?

2205 muaj kev tiv thaiv zoo heev rau kev ntxhov siab corrosion tawg. Nws qhov tshwj xeeb duplex microstructure ntawm 50% austenite thiab 50% ferrite tuaj yeem tiv taus qhov kev puas tsuaj superimposed ntawm chloride ions, corrosive media thiab mechanical stress, daws cov teeb meem tsis ua hauj lwm ntawm kev ntxhov siab corrosion tawg ntawm cov hlau tsis zoo austenitic.

 

4. Puas yog 2205 duplex stainless hlau muaj qhov zoo weldability?

Nws nta zoo weldability thiab tuaj yeem welded conventionally. Lub welded sib koom ua ke tuaj yeem tswj tau lub duplex microstructure nrog txhim khu kev qha vuam kev ua tau zoo. Tsuas yog tsim nyog tswj cov khoom siv hluav taws xob vuam yog xav tau thaum lub sij hawm tsim kho, thiab kev kho cua sov tom qab vuam tsis tas yuav tsum tau ua raws li kev ua haujlwm ib txwm ua, ua kom yooj yim rau kev tsim kho thiab txhim kho kev ua haujlwm.

 

5.Dab tsi yog qhov kev txhim kho corrosion 2205 hloov mus rau?

2205 muaj zoo heev corrosion kuj thiab zoo kuj rau ntau yam qaug zog acids, organic acids thiab ntsev media. Nws yog dav siv rau cov pa corrosive ua hauj lwm tej yam kev mob xws li tshuaj ntau lawm, flue gas desulfurization thiab ib puag ncig tiv thaiv cov khoom uas muaj ntau yam kev siv.

 

Kev siv ntawm 2205 Duplex Stainless Hlau

1.Offshore & On-site Oil-Gas Platforms: Seawater cooling pipelines, fire-dej pipelines and processing fluid piping for offshore platforms, resisting chloride-induced corrosion thiab stress-corrosion cracking.

2.Seawater Desalination Nroj Tsuag: RO siab cov hlab ntsha, cov kav dej hiav txwv hloov chaw thiab cov kav dej kub sib pauv rau cov kev pabcuam dej hiav txwv siab, uas yog ib qho txiaj ntsig zoo rau cov khoom siv high-nickel alloys.

3.Chemical Process Systems: Reactor piping, heat exchangers, separators and forged flanges for chloride-containing process media, tuav ntsev tov thiab organic acids.

4.Oil & Gas Production: Downhole tubing, sib sau cov kav dej thiab lub taub hau fittings rau chloride- thiab hydrogen-sulfide-muaj corrosive media. 5.Flue-gas Desulfurization & Denitrification Equipment: Internals ntawm absorption towers, slurry transfer pipelines, corrosive-resistion valves desulfurization slurry.

6. Kev Kho Dej Kev Lag Luam: Cov chav kho dej siab-salinity wastewater kho, cov kav dej brine thiab cov khoom siv tseem ceeb rau cov kav dej phwj tuaj.

7.Pulp & Paper Kev Lag Luam: Cov khoom siv digester thiab cov txheej txheem bleaching pipelines tiv thaiv pitting corrosion los ntawm cov tshuaj bleaching.

Chaw tsim tshuaj paus ntawm 2205 Duplex Stainless Hlau

GNEE yog ib tus kws tshaj lij Suav lag luam rau 2205 duplex stainless hlau (UNS S32205 / 1.4462), nrog rau 18 xyoo kev paub tshwj xeeb stainless-steel manufacturing thiab thoob ntiaj teb export. Peb muab tag nrho cov khoom ntawm 2205 nrog rau daim hlau, seamless & welded kav, tuav, forged flanges thiab fittings, manufactured nruj me ntsis raws li ASTM A240, A789, A790, A182, EN thiab lwm yam thoob ntiaj teb qauv Gnee Stain.

 

Peb tau tsim kom muaj kev ua tiav tag nrho cov txheej txheem kev tswj hwm zoo, suav nrog PMI spectral pov thawj rau cov khoom siv raw, kev daws teeb meem kev kho cua sov, kev tshuaj xyuas qhov ntev, tensile thiab hardness mechanical tests, nrog rau UT / ET non-destructive testing. Pitting corrosion thiab intergranular corrosion tests tuaj yeem ua tau raws li qhov kev thov. Txhua batch ntawm cov khoom yog muab nrog EN10204 3.1 cov ntaub ntawv pov thawj, nrog rau tag nrho cov cua sov-tus lej traceability, kom tau raws li qhov yuav tsum tau txais ntawm txawv teb chaws tej yaam num xws li offshore engineering, roj & roj, seawater desalination thiab tshuaj flue-gas desulfurization.

 

Peb lub Hoobkas muab kev pabcuam kev cai: txiav-rau-ntev, beveling, chamfering, polishing, CNC machining thiab non-standard forging. Multi-layer ya raws-pov thawj export ntoo-cov ntaub ntawv ntim yog saws rau kev thauj mus los hauv hiav txwv ntev. Peb cov khoom tau raug xa tawm mus rau ntau tshaj 60 lub teb chaws thoob ntiaj teb. Peb muaj cov khoom siv nplua nuj rau cov khoom siv sab nrauv, cov nroj tsuag dej hiav txwv desalination thiab cov nroj tsuag tshuaj. Ib qho kev daws teeb meem uas suav nrog kev sib tham xaiv cov khoom siv, kuaj cov qauv thiab xaj ntawm txhua qhov ntim muaj rau cov neeg siv khoom thoob ntiaj tebGnee Steel ...

Yog tias koj tab tom nrhiav rau siab -zoo 2205 stainless hlau cov khoom, thov nias hauv qab no tiv tauj peb sai; peb tuaj yeem muab cov kev pabcuam kev yuav khoom rau koj.

Hu rau tam sim no

FAQ

1.Dab tsi yog qhov txawv ntawm 2205 duplex steel thiab 316L stainless hlau?

2205 yog duplex-phase (austenite + ferrite). Nws lub zog tawm los yog kwv yees li ob zaug ntawm 316L, nrog rau kev tiv thaiv zoo dua rau cov tshuaj chloride pitting, crevice corrosion thiab kev ntxhov siab-corrosion tawg . 316L yog tag nrho austenitic, zoo dua rau cov kev mob me me uas tsis muaj cov tshuaj chloride siab txaus ntshai . 2205 yog nyiam rau seawater, brine thiab high-chloride ua haujlwm ib puag ncig.

 

2.Qhov kev pabcuam kub npaum li cas yog haum rau 2205 duplex stainless hlau?

A: Pom zoo kev pabcuam kub: -50℃~ 280 degree. Kev ua haujlwm ntev tshaj li 300℃yuav tsum raug zam, vim tias cov txheej txheem intermetallic nkig yuav ua rau cov ntaub ntawv embrittlement. Nws kuj tsis haum rau ultra-low-temperature kev pab cuam vim ferrite-theem brittleness.

 

3.Can 2205 duplex steel yuav welded? Puas xav tau kev kho cua sov tom qab vuam?

Nws muaj qhov zoo weldability. Vuam cov khoom siv hluav taws xob yuav tsum tau tswj kom zoo kom muaj qhov sib npaug austenite-ferrite piv ntawm cov pob qij txha. Post-weld tov annealing feem ntau tsis tsim nyog rau tej yaam num zoo tib yam; Cov phiaj xwm tseem ceeb uas muaj kev pheej hmoo siab yuav tsum ua raws li qhov project specifications.