Alloy 904L Outperforms Lwm yam Austenitic stainless hlau vim muaj qib siab ntawm alloy thiab molybdenum.
904L yeeb nkab prefabration ntau dua reducing acids
Nrog rau qhov kom zoo dua no, tag nrho cov raj xa dej muaj txoj hauv kev muaj txiaj ntsig zoo rau lawv cov raj xa hluav taws xob thiab txo lawv txoj kev xav tau thiab sijhawm.
347 alloy 347 s34700 Cov Yeeb Nkab thiab Cov Kos Duab
Nws muaj qhov ua tau zoo heev rau intergranular corrosion tom qab kis tau kub hauv cov chromium carbide nag los nag (400 ¨c 816¡Ãc).?
Steel Yeeb Nkab Quav Kuj tseem raug xa mus raws li prefabricated cov khoom siv xws li cov kav dej, flanges thiab lawv tau mounted thiab lawv tau mounted thaum lub sij hawm xa mus rau kev tsim khoom.
Cov kev sib txuas no tau hloov sab hauv cov pob zeb ua ntej lub pouring ntawm cov pob zeb ua. Cov kab ke no yuav tsum tau ua ntej pob zeb ua rau vim tias nws yuav tsum tau tiv thaiv qhov hnyav thiab yuam ntawm tus qauv.
Ob lub cim tsis muaj stainless hlau feem ntau yog 304 thiab 316. Txhim kho qhov sib txawv ntawm cov neeg corrosion, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig nrog ntau qhov ntsev lossis tshuaj chloride kis.
904L Qib Stainless Hlau tsis zoo li lwm cov hlau. Vim nws cov roj, molybdenum, npib tsib xee thiab tooj liab, 904l steel nta mus rau corrosion, xeb thiab acids.
Yeeb nkab kab kab ntsig yog qhov tseem ceeb heev vim tias kev tsim txua ntawm lub nkoj thiab lwm yam kev lag luam marine yuav tsum muaj cov piping intense. Yeeb nkab spools tsim cov txiaj ntsig zoo vim tias lawv txo cov kev txwv ntawm qhov chaw ntawm thaj chaw.
Cov leeg cov kab pheebsuab feem ntau yog siv rau hauv pob zeb ua qauv kom paub tseeb tias cov fittings kom ntseeg tau tias yog qhov chaw ua ntej pouring pob zeb ua ntej.
Cov kab phib kab yog li cas los ntawm tus naj npawb ntawm cov kav dej nyoos thiab cov yeeb nkab fittings (piv txwv li laujkes, flanges, tees, thiab lwm yam) hauv cov khw fabrication.
Thaum xaiv cov hlau tsis xeb uas yuav tsum tau ua kom haum ib puag ncig, cov hlau tsis huv stainless hlau feem ntau siv.
Lub alloy muaj cov oxidation zoo tsis kam thiab creep lub zog mus rau 1500¡Ãf (816¡Ãc). Nws kuj tseem muaj qhov ntsuas kub zoo tsawg.
Lub siab chromium cov ntsiab lus txhawb nqa thiab saib xyuas zaj duab xis passive uas tiv thaiv cov khoom hauv ntau qhov chaw muaj kev nyab xeeb.
Lub stainless hlau fab sib txaws cov spool yog pab rau cov neeg siv khoom uas lawv tsis nco qab ib feem twg thiab lawv tshem tawm cov teeb meem ntawm cov khoom seem.
Alloy 347h (untalial s3409) Phaj Stainless Hlau yog cov carbon ntau dua (0.04 ¨C 0.10) version ntawm alloy.
304 Stainless hlau yog daim ntawv feem ntau ntawm cov hlau stainless hauv ntiaj teb vim nws zoo heev corrosion thiab tus nqi. Nws muaj 16% rau 24% chromium chromium thiab txog 35% npib tsib xee, ntxiv rau cov pa roj carbon thiab manganese.
Cov kav dej nyoos raug txiav rau cov uas yuav tsum tau loj thiab cov txav nrog cov yeeb nkab fittings rau lub rooj haum, qhov twg qee qhov sib txuas ua ke (i.e. txuas ib ntus). Lub txiaj ntsig sub-sib dhos (ib feem ntawm qhov kawg cov kab ua ntej cov zaub mov) txuas ntxiv nrog cov chaw sib txuas) ua ntej nws rov qab mus rau lub rooj sib npaug thiab tau ua kom haum nrog lwm cov kab noj mov.
Cov hlau stainless 904l \ / 1.4539 cov khoom siv tau los ua cov khoom kub thiab cov hlau thiab cov khoom siv sib tw, nrog rau kev siv roj ntsha thiab welded
Qhov no cov hlau stainless yeeb nkab feem ntau flanged los pab txhawb kev sib txuas nrog lwm cov kev lag luam xws li cov khoom siv hluav taws xob zoo li yuav tsum muaj cov piping nthuav dav.
Peb tsim cov khoom siv rau cov khoom siv thiab. Thaum cov neeg yuav khoom xav tau cov khoom sib txawv ua ntej kev teeb tsa, daim ntawv thov ntawm cov khoom siv ua ke ua ke ua ke yog hu ua piping spool thov. Muaj cov hlau stainless hlau spools cov khoom zoo li lwm cov khoom siv tau cov kab ua haujlwm hauv kev siv.
316L, yog qhov kev xaiv zoo dua rau ib qhov project uas yuav tsum muaj ntau tus vuam vim 316 yog qhov ntxim nyiam ntau dua 316l (corrosion nyob rau hauv weld).
Lawv feem ntau yooj yim rau kev ncaj ncees vim yog cov khoom uas lawv raug; Dej thiab ntuj electrolytes. Kev soj ntsuam tiv thaiv yuav tsum tau ua thaum ua ntawv thov cov ntaub qhwv cov kab.
Muaj ntau cov khoom siv txawv cov khoom siv uas siv los tsim cov spools no. Lub 304 stainless hlau yog cov qib siv ntau tshaj plaws. Lub ntsej muag huv stainless 304 tri clamp spool yog tsim los ntawm cov khoom no thiab muaj 3 clamps haum rau kev yooj yim ntawm cov qhua tuaj noj mov. Peb tseem muab cov kev daws teeb meem rau peb cov neeg siv khoom. Thov hu rau peb rau koj cov kev xav tau.
304 Stainless hlau tsis muaj ib qho tsis muaj zog: Nws yog kev ntxim rau corrosion los ntawm cov tshuaj chloride lossis cov dej qab ntsev xws li ntug dej hiav txwv.
Qhov sib ntxiv ntawm tus qauv rau qib no muab nws zoo dua corrosion tsis kam tshaj li cov pa chromium-tsib xee stomfuric, phosphoric thiab acetic acids. Txawm li cas los xij, kev siv ntawm hydrochloric acid yog txwv.
Cov nyiaj ntau ntawm cov npib tsib xee thiab chromium hauv cov hlau tsis muaj roj hauv Austenitic stainless cov khoom, raws li zoo heev corrosion tsis kam.
Alloy 347 (Unsen S34700) yog columbium stabilized ustenitic steelion steelion tsis kam thiab qee qhov zoo dua nyob rau hauv cov mob oxidizing zoo tshaj 321 (unc unical S32100).
