Sus321 Stainless Hlau vs. Duplex Stainless Hlau: Corrosion Kuj

Sus321 stainless hlau vs. Duplex Stainless Hlau: Txhua yam corrosive tsis kam sib piv

Thaum xaiv corrosion-resistant stainless hlau rau kev hnyav ib puag ncig, sus321 AuPlectic portic thiab duplex stainless hlau xws li 2205 thiab 2507 yog thawj qhov kev xaiv. Cov ntawv sau no muab cov ncauj lus piav qhia cov ncauj lus kom tsis txhob muaj kev cuam tshuam, kev ntxhov siab ntawm kev tawg, thiab cov ntsuas kub siab ua kom tsis kam los txhawb koj qhov project xaiv.

1. Sus321 stainless hlau: intergranular corrosion tsis kam

Sus321 Stainless hlau: Siv titanium (ti) ruaj khov los tiv thaiv chromium deprition, thiaj li txhim kho corbranular los mus rau intergranular corrosion hauv weld-cuam tshuam cov aav. Qhov zoo tagnrho rau kev kub kub-kub (450-850 degree) kev pabcuam thiab cov qauv welded.

Duplex Stainless hlau Stainless: nrog ob ntu microstructure (kwv yees li 50%. Lawv feem ntau yuav tsum tsis muaj kev pab cuam tom weld-weld

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2. Sus321 stainless hlau: pitting thiab crevice corrosion tsis kam

Sus321: Cov khoom pov thawj pitting (e _ b) ntawm ib puag ncig {2}}. 35v (vs Haum rau chloride concentrations mus txog ~ 300 ppm. Hauv cov roj av marine lossis kev txhoj puab ntau, kev kho mob ntxiv lossis kev tiv thaiv kev tiv thaiv kev tiv thaiv kev tiv thaiv.

Duplex stainless hlau (piv txwv li, 2205, 2507): Nrog cov ntsiab lus molybdenum (n)}. 5v {4 4}}. 75v. Lawv muab kev tiv thaiv zoo tshaj plaws rau pitting thiab crevice corrosion, ua rau lawv zoo tshaj rau cov qauv ntug dej, pulp thiab cov ntawv thiab cov ntawv desalination.

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3. Sus321 Stainless Hlau: Kev ntxhov siab corrosion tawg (SCC) Kuj

Sus321 Stainless hlau: Zoo li lwm cov neeg AusceeniS, Sus321 yog kev ntxhov siab hauv cov tshuaj hauv qab ntawm 60 degree -such raws li nyob rau hauv tshav kub hloov.

Duplex Stainless hlau Stainless: Ferrite nyob rau hauv lub tsev kawm ntawv mel Haum rau kev siv mus ntev hauv chloride ib puag ncig ntawm cov chaw kub.

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4. Sus321 stainless hlau: high-kub corrosion thiab oxidation tsis kam

Sus321: Ua ib qho ruaj khov thiab ntom ntom thiab ntom txheej roj oxide thaum raug rau kub ntawm 600 degree thiab 850 degree, muab cov muaj zog oxidation tsis kam. Feem ntau siv nyob rau hauv kev siv kub siab xws li rauv tub leeg thiab kev kho cua sov fixtures.

Duplex Stainless hlau Stainless: txawm hais tias corrosion heev-tiv taus ntawm qhov kub thiab nag lossis daus (σ-bolonged raug saum toj no ~ 300 degree, uas ua rau muaj ob qho tib si. Tsis pom zoo rau kev pab kub-siab.

 

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Pros thiab cons ntawm sus321 vs. Duplex Stainless hlau

Ntiag tug	Sus321 Stainless Hlau	Duplex Stainless Hlau (piv txwv li, 2205)
Intergranular corrosion	Muaj zog (ti-divilized)	Zoo heev (muaj ob-theem tsim)
Pitting \/ crevice corrosion	Tswj kav	Superior (Siab Mo, n Cov Ntsiab Lus)
Kev ntxhov siab corrosion tawg	Tswj kav	Zoo tshaj
Kev Kub-Kub Oxidation	Zoo (txog 850 degree)	Moderate (not suitable for >300 DEGREE)