Super Duplex 254 SMO Stainless hlau tsum chaw tsim tshuaj paus,tiv tauj pebkom tau txais kev tsocai dawb thiab qauv!
Super Duplex 254 SMO Stainless Hlau yog dab tsi?
Super duplex 254 SMO stainless hlauyog lub siab -kev ua tau zoo alloy renowned rau nws exceptional corrosion kuj thiab txhua yam khoom. Nws yog tsim los ntawm chromium, npib tsib xee, molybdenum, thiab nitrogen, nrog ntxiv ntawm tooj liab thiab tungsten. Lub npe "super duplex" qhia nws ob lub-theem microstructure, muaj kwv yees li ntawm qhov sib npaug ntawm austenite thiab ferrite, uas ua rau nws lub zog zoo dua thiab tiv thaiv corrosion piv rau cov qauv duplex stainless hlau.
Super duplex 254 SMO / S31254 / F44 / WNR. 1.4547yog qhov tshwj xeeb zoo- haum rau cov ntawv thov nyob rau hauv ib puag ncig hnyav xws li thaj chaw hauv hiav txwv, cov chaw ua tshuaj lom neeg, cov roj thiab roj ntau lawm, thiab kev lag luam pulp thiab ntawv. Nws tsis kam mus rau crevice corrosion, pitting, thiab chloride -induced stress corrosion cracking ua rau nws yog ib qho kev xaiv zoo tshaj plaws rau cov khoom tseem ceeb uas raug mob hnyav.
Super Duplex 254 Smo Stainless Steel Chemical Composition:
- Chromium (Cr): 19.5 - 20.5%
- Nickel (Ni): 17.5 - 18.5%
- Molybdenum (Mo): 6 - 6.5%
- Nitrogen (N): 0.18 - 0.22%
- Hlau (Fe): Sib npaug
- Copper (Cu): 0.5 - 1.0% (yeem, nyob ntawm cov qib tshwj xeeb lossis txawv)
- Tungsten (W): 0.5 - 1.0% (yeem, nyob ntawm seb qib tshwj xeeb lossis txawv txawv)
Super Duplex 254 Smo Common Product Forms suav nrog:
- ASTM A240 S31254 Cov Ntawv thiab Phaj: Cov no muaj nyob rau hauv ntau yam thicknesses thiab ntau thiab tsawg, haum rau fabricating Cheebtsam, tso tsheb hlau luam, hlab ntsha, thiab structural ntsiab.
- ASTM A276 / A479 SMO 254 Bars thiab Rods: Cov no yog muab nyob rau hauv round, square, los yog hexagonal duab, feem ntau siv rau machining Cheebtsam, fasteners, thiab fittings.
- ASTM A312 254SMO Yeeb Nkab thiab Tubes: Super duplex254 SMO stainless hlau yeeb nkabthiab raj muaj nyob rau hauv seamless thiab welded cov ntaub ntawv, haum rau conveying kua thiab gases nyob rau hauv corrosive ib puag ncig.
- ASTM A403 WPS 31254 Cov khoom siv: Fittings xws li luj tshib, tees, reducers, thiab flanges yog tsim los ntawm super duplex 254 SMO stainless hlau los xyuas kom meej compatibility thiab corrosion kuj nyob rau hauv piping systems.
- ASTM A182 F44 Forgings Cov Lus Qhia: Forged Cheebtsam xws li li qub, flanges, thiab fittings yog tsim los ntawm super duplex 254 SMO stainless hlau los muab superior zog thiab corrosion kuj.
- Kev Cai Fabrications: Cov neeg tsim khoom tseem tuaj yeem muab kev cai- cov khoom tsim raws li cov qauv tsim thiab cov kev cai tshwj xeeb, suav nrog cov khoom siv tshuab, cov hlab ntsha siab, thiab cov khoom siv hluav taws xob.
Cov lus nug nquag nug (FAQ)
Q: Puas yog 254 SMO yog Duplex lossis Austenitic steel?
A: Nws yog "6-moly"Austeniticstainless hlau. Txawm li cas los xij, vim tias nws qhov kev tiv thaiv corrosion yog piv rau lossis zoo dua li ntau Super Duplex steels, nws feem ntau tau tham hauv tib pawg.
Q: 254 SMO puas tuaj yeem welded?
A: Yog. Nws muaj zoo weldability. Peb pom zoo kom siv ntau tshaj - alloyed muab tub lim hlau (xws li Alloy 625) kom muaj kev tiv thaiv corrosion siab tshaj plaws hauv thaj chaw vuam.
Q: PREN ntawm 254 SMO yog dab tsi?
A: Tus nqi PREN feem ntau yog42-45, uas yog siab tshaj 316L (24) thiab Duplex 2205 (34).
Q: Puas yog 254 SMO zoo ib yam li F44?
A: Yog lawm, F44 yog tus qauv tsim (ASTM A182) rau qib UNS S31254, feem ntau hu ua 254 SMO.
Q: 254 SMO puas tuaj yeem siv rau qhov kub thiab txias?
A: Thaum nws muaj kev tiv thaiv oxidation zoo, nws feem ntau pom zoo rau kev siv qis dua 400℃(750℃F) kom tsis txhob muaj nag lossis daus ntawm intermetallic theem uas tuaj yeem txo qhov tawv.
