Qhov twg yog ib qho ntxiv corrosion resistant, 304 stainless hlau lossis inconel 600?

Inconel 600 muaj cov hlaus zoo rau 304 stainless hlau, tshwj xeeb tshaj yog nyob rau hauv kev kub siab, sulfur, acids / alkalis), lossis ib puag ncig loj heev. Rau cov khoom siv dav dav lossis cov ntaub ntawv dej tshiab, 304 yog tus nqi ntau dua. Rau cov ntawv qhia tseem ceeb zoo li marine engineering lossis tshuaj lom neeg, inconel 600 yog qhov kev xaiv uas xav tau.

304 Stainless Hlau (Austenic)

Composition: ~ 18% cr, 8% ni, cov pa roj av (tsawg dua los yog sib npaug rau 0. 08%).

Cov yam ntxwv: Cov ntsiab lus corrosion tsis kam nyob rau hauv atmospheric, dej ntshiab thiab muaj zog acidic ib puag ncig. Tsis muaj Molybdenum (mo), lim cov kev txwv tsis pub rau pitting thiab chloride-inducles corrosion.

Inconel 600 (Nickel-based Superalloy)

Kev sib xyaw: ~ 72% ni, 14-17% cr, 6-10% FE.

Cov yam ntxwv: Tshwj xeeb oxidation tiv thaiv, chloride kev ntxhov siab tawg (SCC) tsis kam, thiab ua kom muaj kev ua haujlwm siab rau ib puag ncig uas yog cov ntsiab lus siab.

304 stainless hlau vs inconel 600 corrosion tsis kam

Cov chaw dav dav

304 Stainless Hlau

Ua tau zoo nyob rau hauv huab cua huab cua, dej tsis qab zib, nruab nrab kev daws teeb meem, thiab cov kua qaub me (piv txwv li, ua zaub mov).

Nquag rau pitting lossis intergranular corrosion hauv chloride-nplua nuj (xws li, dej hiav txwv, pas dej) lossis kub oxidizing tej yam kev mob.

Inconel 600

Outperforms 304 nyob ze li ntawm txhua qhov kev sib cav sib ceg, tshwj xeeb tshaj yog nyob rau hauv qhov siab-shloride-laden, muaj zog acid / alkaline, lossis ib puag ncig zoo.

Piv txwv li: tiv taus cov chlorine qhuav (tsawg dua los yog sib npaug nrog 510 degree), tsawg dua lossis sib npaug), fluorides, thiab nuclear reactor ib puag ncig.

Cov xwm txheej tshwj xeeb