Duplex Stainless Hlau

Duplex Stainless Hlau

Duplex Stainless hlau Stainless hlau (DSS) yog hais txog cov hlau tsis muaj nrog 50% txhua, thiab theem ntawm cov theem me feem ntau yuav tsum mus txog tsawg kawg 30%. Xws li cov ncauj lus qis c cov ntsiab lus, cov ntsiab lus crats yog 18% ~ 28%, thiab NI cov ntsiab lus yog 3% ~ 10%. Qee cov hlau kuj tseem muaj cov khoom siv xws li Mo, Cu, NB, TI, thiab N.
Duplex Stainless hlau muaj cov yam ntxwv ua haujlwm hauv qab no:
(1) Molybdenum-muaj cov yas stainless muaj zoo chloride kev ntxhov siab corrosion tsis kam raws li kev ntxhov siab tsawg. Feem ntau, 18-8 hom Austenitic stainless hlau yog nquag rau kev ntxhov siab corrosion tawg hauv nruab nrab cov kev daws teeb meem saum toj kawg 60 ° C. Cov kev hloov pauv kub, evapators thiab lwm yam khoom siv ua tau ntawm hom stainless hlau uas muaj qhov kev ntxhov siab rau kev ua kom muaj kev ntxhov siab thiab hydrogen sulfide kev sib tsoo, thaum lub zog ntawm cov hlau uas tsis muaj zog.
(2) Molybdenum-muaj cov yas stainless hlau muaj qhov zoo pitting corrosion tsis kam. Thaum muaj tib lub pitting tsis tshua muaj nqi (Pre = CR% + 3.3mo% +) muaj peev xwm pitting ntawm duplex thiab antenitic stainless hlau zoo ib yam li zoo sib xws. Lub pitting corrosion ntawm duplex stainless hlau thiab anustenitic stainless hlau yog sib npaug rau ntawm Aisi 316L. Qhov pitting thiab crevice corrosion resistance ntawm siab chromium duplex stainless hlau stainless hlau muaj 25% cr, tshwj xeeb tshaj yog nitrogen, tshaj li ntawm Aisi 316L.
(3) Nws muaj kev ua kom zoo ua kom qaug zog thiab hnav corrosion tsis kam. Nyob rau hauv qee cov kev tawm tsam kev tawm tsam, nws yog qhov haum rau kev ua cov cuab yeej siv fais fab xws li twj tso kua mis thiab cov twj qub.
(4) Nws muaj cov khoom siv neeg kho tshuab. Nws muaj lub zog siab thiab qaug zog, thiab nws cov txiaj ntsig lub zog yog ob zaug ntawm 18-8 Austenitic Stainless hlau. Elongation nyob rau hauv cov kev daws teeb meem hauv lub xeev tau nce mus txog 25%, thiab lub zog tawv ak (v-notc) yog saum 100j.
(5) Nws muaj Weldability zoo thiab tsis muaj thermal tawg kev nyiam. Feem ntau, tsis muaj preheating yog yuav tsum tau ua ntej vuam, thiab tsis muaj kev kho kom sov yog yuav tsum tau tom qab vuam. Nws tuaj yeem welded nrog cov ntaub ntawv tsis sib xws xws li 18-8 ustenitic stainless hlau lossis cov hlau.
(6) Kub Ua Haujlwm Kub Kub Ua Kub Kub Stainless Hlau uas muaj cov chromium stromium tsawg dua li xyoo 18-8 Auteritic Stainless hlau, thiab nws kev tawm tsam yog tsawg. Nws tuaj yeem siv ncaj qha rau hauv cov tsiaj ua haujlwm los tsim cov hlau nplaum hlau tsis tau zam txim. Qhov kub ua hauj lwm ntawm ob tus hlau stainless muaj cov hluav taws xob ntau dua li tias ntawm Antenenitic Stainless hlau, thiab nws tuaj yeem tsim cov khoom xws li cov phiaj, cov hlau thiab xaim.
(7) Cov haujlwm ua haujlwm hnyav thaum ua haujlwm txias yog ntau dua li ntawm 18-8 Austenitic stainless hlau. Nyob rau hauv thaum ntxov theem ntawm deformation ntawm cov hlab thiab daim hlau, muaj kev ntxhov siab loj yuav tsum tau thov kom deform.
(8) piv nrog ustenitic steel hlau, nws muaj qhov loj me thermal conductivity thiab txoj cai me me uas nthuav tawm cov cuab yeej siv hluav taws xob thiab kev tsim cov phiaj hlau. Nws tseem haum rau kev ua cov tub ntxhais ua kom sov, thiab nws cov cua sov hloov efficiency yog siab tshaj li ntawm Antenenitic Stainless hlau.
(9) Nws tseem muaj ntau yam nkawj muaj ntau yam ntawm cov roj chromium siab ferritic stainless hlau thiab tsis haum rau kev siv nyob rau hauv kev ua haujlwm saum 300 ° C. Qhov qis dua cov ntsiab lus chromium hauv chav yas stuplex stainless, qhov tsawg dua tsis muaj teeb meem lub loj barses xws li σ yog.