Duplex Steel Tube

Duplex stainless hlau muab zoo heev corrosion kuj thiab boasts exceptional mechanical zog. Nws superior corrosion kuj ua rau kom muaj zog ua hauj lwm uptime thaum piv rau carbon steels thiab tsoos stainless hlau. Nyob rau tib lub sijhawm, nws cov cuab yeej zoo kawg nkaus ua rau kev tsim cov qauv sib dua, kev tsim qauv tsim qauv, thiab txo cov kev xav tau ntawm vuam.

Duplex stainless hlau yog cov corrosion-resistant heev thiab tuaj yeem ua kom muaj zog los ntawm kev ua haujlwm hardening. Cov raj hlau no muaj cov ntsiab lus siab chromium, feem ntau yog li ntawm 18% mus rau 28%, thiab nruab nrab mus rau qis cov nyiaj npib tsib xee, feem ntau ntawm 1.5% thiab 8%. Qhov tshwj xeeb corrosion kuj thiab cov cuab yeej zoo kawg nkaus ntawm duplex stainless hlau yog ntaus nqi rau lawv cov tshuaj muaj pes tsawg leeg thiab qhov sib npaug, lossis "duplex," microstructure, uas muaj kwv yees li qhov sib npaug ntawm ferrite thiab austenite. Qhov xwm txheej duplex no txhais tau tias lawv nthuav tawm cov yam ntxwv ntawm ob qho tib si austenitic thiab ferritic stainless hlau. Feem ntau, duplex stainless hlau yog tawv dua ferritic stainless hlau, thiab lawv lub zog muaj peev xwm qee zaum yog ob npaug ntawm cov hlau tsis muaj austenitic.

Specification ntawm Duplex Steel Tube

 

• Khoom siv: Duplex stainless hlau

• Qib: S31803 / S32205, S32750, S32760, S31500, 32001, S32003, S32304

• Sab nraud txoj kab uas hla: 6mm-300mm

• Phab ntsa Thickness: 1.0mm-12.7mm

• Ntev: 1m-12m, lossis raws li xav tau

• Cov nqe lus them nqi: T / T, L / C

• Lub sij hawm xa tuaj: 30-70 hnub

Lub microstructure nyob rau hauv duplex stainless hlau muaj kwv yees li 50 feem pua ​​austenite thiab 50 feem pua ​​​​ferrite. Raws li qhov tshwm sim, cov khoom siv duplex nthuav tawm cov khoom siv lub cev ntawm ob qib ferritic thiab austenitic. Duplex stainless hlau muaj kev tiv thaiv tiv thaiv chloride kev nyuaj siab corrosion cracking, ib qho teeb meem tshwm sim nyob rau hauv cov qib austenitic, thiab lawv kuj pom zoo tuaj yeem tiv thaiv hauv zos corrosion. Cov tsev neeg stainless hlau no boasts roughly ob npaug ntawm qhov tawm los lub zog ntawm lawv cov austenitic counterparts, ua rau tus tsim ntawm thinner gauge tubing. Qhov siab dua hardness qhov tseem ceeb ua rau kev txhim kho kev hnav tsis kam, tshwj xeeb tshaj yog rau cov hlab ntsha siab.

Thaum piv rau ferritic stainless hlau, duplex stainless hlau nthuav tawm ntau dua plasticity, ductility, txhim kho kev tiv thaiv rau intergranular corrosion, thiab txhim kho weldability. Nws khaws tib yam 475 degree brittleness raws li ferritic stainless hlau thiab tswj cov qib siab ntawm thermal conductivity.

Duplex Stainless hlau sib xyaw ntau yam zoo ntawm ob qho tib si ferritic thiab austenitic cov ntaub ntawv, uas ua rau muaj kev sib xyaw ua ke ntawm lub zog siab thiab zoo heev corrosion kuj. Ua tsaug rau lawv cov qib siab ntawm chromium, molybdenum, thiab nitrogen, nrog rau lawv cov duplex microstructure, cov hlau no xa ntau qhov zoo thaum piv rau qib austenitic hauv 300 series:

• Lub zog siab - Roughly ob lub zog ntawm austenitic stainless hlau.

• Impressive kuj rau pitting thiab crevice corrosion.

• Exceptional tsis kam rau kev ntxhov siab-corrosion tawg.

• Siv tau zoo erosion thiab qaug zog kuj.

• Qhov zoo tshaj plaws weldability thiab txhim khu kev hloov tshav kub.

• Ntau tus nqi ruaj khov vim txo cov ntsiab lus nickel thaum piv rau qib austenitic stainless.

Kev siv tsis tu ncua ntawm duplex stainless hlau raj yuav tsum tshwm sim hauv qhov kub ntawm 50 txog 250 degree. Qhov kev txwv qis dua yog cuam tshuam raws li qhov kub hloov pauv hloov pauv, thaum qhov txwv sab saud yog txwv los ntawm brittleness ntawm 475 degree. Nws yog ib qho tseem ceeb kom ntseeg tau tias qhov kub siab tshaj plaws tsis tshaj 300 degree.

• Superior tsis kam mus rau dav dav thiab hauv zos corrosion, tshwj xeeb tshaj yog rau kev ntxhov siab corrosion, pitting corrosion, crevice corrosion, corrosion qaug zog, thiab puas & corrosion.

• Zoo weldability

• Zoo mechanical zog

• Zoo heev intergranular corrosion kuj

• High nqi-zoo, lub neej ntev

• Cov hlab ntsha siab, reactor tanks, thiab cov cua kub exchangers

• Desalination chaw thiab seawater systems

• Cov kav dej xa mus

• Rotors, impellers, thiab shafts nyob rau hauv industrial machinery

• Cov tshuab ntxhua khaub ncaws thiab lwm yam tshuab rau kev lag luam pulp thiab ntawv

• Absorber towers thiab FGD systems rau kev tswj huab cua

• Kev tsim cov phosphoric acid

• Kev siv hauv cov zaub mov, roj thiab roj, mining, thiab architectural industries

• Cov chaw tsim khoom siv biofuels