Khoom nta ntawm Duplex Stainless Hlau kav

Khoom nta ntawm Duplex stainless hlau kav

1. Lub zog siab: Lub zog ntawm duplex ss yeeb nkab yog kwv yees li ob zaug ntawm austenitic stainless hlau, yog li cov neeg tsim qauv tuaj yeem txuag tau cov nqi los ntawm kev siv cov tuab tuab.

2. Zoo toughness thiab ductility: Txawm hais tias duplex stainless hlau muaj lub zog siab, lawv tseem tuaj yeem qhia tau zoo heev toughness thiab ductility. Lawv toughness thiab ductility yog ho zoo dua ferritic stainless hlau thiab carbon hlau.

3. Zoo heev corrosion kuj: Ua ntej ntawm tag nrho cov, peb yuav tsum to taub tias corrosion kuj ntawm stainless hlau nyob ntawm nws cov tshuaj muaj pes tsawg leeg. Duplex stainless steels tube muaj corrosion kuj zoo heev nyob rau hauv feem ntau ib puag ncig vim lawv cov ntsiab lus chromium siab thiab txaus nickel thickness los muab kev ruaj ntseg zoo. Tsis tas li ntawd, duplex stainless hlau kuj tseem tiv taus chloride ion corrosion thiab crevice corrosion vim duplex stainless muaj chromium, molybdenum, tungsten, thiab nitrogen ntsiab. Tsis tas li ntawd, duplex steel kuj muaj kev ntxhov siab corrosion kuj zoo heev. Cov yam ntxwv no tau txais los ntawm ferrite sab. Nws cov kev ntxhov siab corrosion kuj zoo dua li ntawm 300 series austenitic stainless hlau. Feem ntau austenitic stainless hlau kav.Stress corrosion cracking tej zaum yuav tshwm sim nyob rau hauv stainless hlau xws li 304 thiab 321 thaum lawv muaj chloride ions, huab cua ntub, thiab siab kub. Yog li ntawd, nyob rau hauv tshuaj industries nrog ib tug ntau dua kev pheej hmoo ntawm kev nyuaj siab corrosion, duplex stainless hlau feem ntau yog siv los ntawm austenitic stainless hlau.

Duplex stainless hlau yuav muaj qhov zoo dua pitting corrosion kuj yog tias cov hlau alloying molybdenum ntxiv. Thaum qhov sib npaug pitting qhov tseem ceeb sib npaug, qhov tseem ceeb pitting muaj peev xwm ntawm duplex stainless hlau thiab austenitic stainless hlau zoo sib xws. Lub pitting corrosion kuj ntawm duplex stainless hlau nrog cov ntsiab lus chromium ntawm 18% yog sib npaug ntawm AISI316L stainless hlau. Lub pitting thiab crevice corrosion kuj ntawm oxygen-muaj high-aschor duplex stainless hlau uas muaj 25% Cr yog ntau dua li ntawm AISI316L stainless hlau. Zoo tiv thaiv corrosion qaug zog thiab hnav thiab corrosion Duplex stainless hlau muaj kev tiv thaiv zoo rau corrosion qaug zog thiab hnav thiab corrosion. Nyob rau hauv tej yam kev mob, nws kuj yog siv los ua raw khoom rau kev tsim twj, li qub thiab lwm yam khoom siv.