Exhaust yeeb nkab: 304 lossis 409 stainless hlau?

Raws li lub tsheb tso yeeb nkab, 304 stainless hlau yuav zoo dua. Vim tias qhov kub siab tshaj plaws ntawm qhov chaw nres nkoj ntawm lub tsheb cav tsis tuaj yeem ncav cuag 650 degrees. 409, thiab 304 tag nrho ua tau raws li qhov yuav tsum tau ua. Txawm li cas los xij, 304 muaj qhov zoo corrosion kuj. Hais txog tus nqi, 304 stainless hlau kuj tseem ntau dua ob zaug ntawm 409.

409 stainless hlau tso yeeb nkab:
Qhov zoo: 409 stainless hlau muaj qhov zoo corrosion kuj, tshwj xeeb tshaj yog ua haujlwm zoo nyob rau hauv qhov kub thiab txias qhov chaw. Nws kuj muaj qhov hnav tsis kam thiab thermal qaug zog, thiab tuaj yeem tiv taus qhov kub thiab txias hauv qhov tso pa tawm. Tsis tas li ntawd, 409 stainless hlau yog qhov pheej yig thiab tsim nyog rau kev siv lub tshuab hluav taws xob dav dav.
Disadvantages: Piv nrog 304 stainless hlau, 409 stainless hlau muaj qis corrosion kuj thiab oxidation kuj. Nws tsis muaj zog tiv thaiv acidic ib puag ncig thiab chlorides, yog li nws tuaj yeem xeb thiab xeb hauv qee qhov chaw hnyav.

304 stainless hlau tso pa yeeb nkab:
Qhov zoo: 304 stainless hlau muaj kev tiv thaiv corrosion zoo heev thiab oxidation tsis kam, thiab tuaj yeem tswj tau qhov kev ua tau zoo nyob rau hauv ntau yam corrosive media thiab hnyav ib puag ncig. Nws kuj muaj lub zog siab thiab kub tsis kam, thiab tuaj yeem tiv taus qhov kub thiab txias thiab kev kub siab. 304 stainless hlau yog dav siv nyob rau hauv high-end thiab high-kev ua tau zoo automotive tso systems.
Qhov tsis zoo: Tus nqi ntawm 304 stainless hlau yog qhov siab, uas tej zaum yuav kim dhau rau cov tshuab hluav taws xob dav dav. Tsis tas li ntawd, 304 stainless hlau tuaj yeem nkag siab rau qee qhov chaw acidic thiab chlorides, thiab yuav tsum tau saib xyuas thiab saib xyuas kom raug.