Muaj qhov sib txawv tseem ceeb ntawm duplex stainless hlau xaim mesh 2205 thiab 2207 hauv ntau yam. Cov hauv qab no yog cov ncauj lus kom ntxaws thiab cov ntsiab lus ntawm lawv qhov sib txawv:
Chemical composition thiab cov ntsiab lus:
2205 duplex stainless hlau: Feem ntau yog tsim los ntawm 21% chromium, 2.5% molybdenum thiab 4.5% nickel-nitrogen alloy. Tsis tas li ntawd, nws kuj muaj qee qhov nyiaj nitrogen (0.14 ~ 0.20%), nrog rau cov khoom me me xws li carbon, manganese, silicon, phosphorus thiab sulfur.
2207 Duplex Stainless Hlau (tseem hu ua F53): Kuj tseem muaj 21% chromium, tab sis muaj molybdenum thiab nickel cov ntsiab lus siab dua 2205. Cov ntsiab lus tshwj xeeb yuav txawv me ntsis vim yog cov qauv sib txawv lossis cov tuam txhab tsim khoom, tab sis feem ntau cov ntsiab lus molybdenum yog siab dua thiab cov ntsiab lus nickel kuj tseem siab.
Performance nta:
2205 Duplex stainless hlau:
Nws muaj lub zog siab thiab zoo cuam tshuam toughness.
Nws muaj zoo zuag qhia tag nrho thiab lub zos tiv thaiv kev nyuaj siab corrosion.
Vim muaj cov ntsiab lus siab ntawm chromium, molybdenum thiab nitrogen nyob rau hauv nws cov tshuaj muaj pes tsawg leeg, nws muaj ib tug siab anti-pitting corrosion sib npaug (PREN tus nqi 33-34). Nyob rau hauv yuav luag tag nrho cov corrosive media, nws pitting corrosion kuj thiab crevice corrosion kuj zoo dua 316L los yog 317L austenitic stainless hlau.
2207 stainless hlau:
Nws muaj kev tiv thaiv corrosion zoo dua thiab hnav tsis kam, tshwj xeeb tshaj yog tawm tsam corrosive media xws li muaj zog acids, alkalis thiab chloride ions.
Nws muaj zog dua thiab hardness thiab ruaj khov dua li cov hlau tsis zoo tib yam.
Nws muaj zoo plasticity thiab processability, nrog rau zoo heev toughness thiab qaug zog kuj.
Kev siv thaj chaw:
2205 duplex stainless hlau: dav siv nyob rau hauv kev lag luam tshuaj, roj thiab roj kev lag luam, marine engineering, kev tsim kho kev lag luam, aerospace kev lag luam thiab lwm yam kev lag luam. Nws zoo heev corrosion kuj ua rau nws yog ib qho kev xaiv zoo tshaj plaws rau kev tsim cov nkoj, offshore platforms thiab lwm yam khoom siv.
2207 duplex stainless hlau: kuj tsim nyog rau ib puag ncig corrosive heev, tshwj xeeb tshaj yog nyob rau hauv hnyav ib puag ncig xws li marine engineering thiab tshuaj lom neeg kev lag luam. Vim nws cov yam ntxwv ua tau zoo, nws kuj tau siv dav hauv kev lag luam xws li roj thiab roj drilling.
Vuam kev ua tau zoo thiab nqi:
2205 duplex stainless hlau muaj zoo weldability. Nws tsis tas yuav tsum tau preheating thaum vuam los yog kev kho cua sov tom qab vuam, uas ua rau cov txheej txheem vuam yooj yim.
Nyob rau hauv sib piv, qhov vuam kev ua tau zoo ntawm 2207 duplex stainless hlau yog tus tsis zoo thiab yuav tsum tau tshwj xeeb vuam txheej txheem. Tsis tas li ntawd, vim nws qhov kev ua tau zoo heev, tus nqi ntawm 2207 duplex stainless hlau yog qhov siab thiab tus nqi tsim khoom yog siab.