Cov Lus Qhia Paub Khoom
Cov yeeb nkab tsis xeb hlau ntxiv nrog Ni thiab Cr cov ntsiab lus kom muaj qhov zoo dua corrosion nyob hauv thaj chaw sib txawv, feem ntau siv 304 / L thiab 316 / L stainless hlau yeeb, txheem hauv ASTM A312, A213, A270 thiab lwm yam.
Cov yeeb nkab steel hlau yog ib yam ntawm cov hollow thiab ntev steel, qhov kev lag luam steel ntu puag ncig zoo. Cov pas hlau tsis xeb hlau thiab lub raj tau siv dav hauv roj, tshuaj, khoom siv kho mob, khoom noj khoom haus, lub teeb pom kev lag luam, khoom siv thiab cuab yeej siv thiab cov ntu ntawm cov qauv, thiab lwm yam. Tsis tas li ntawd, thaum kev siv ntawm torsion thiab anti-torsion yog sib npaug, steel hlau yog sib dua, yog li nws tau siv hauv cov khoom siv thiab cov phiaj xwm kev teeb tsa. Nws kuj yog siv los tsim txhua yam khoom siv ntawm cov khoom siv sib xyaw, cov khoom ntim, cov khoom siv, thiab lwm yam. Cov hom kav dej tau muab faib ua: cov hlau tsis muaj seamless txuas thiab kav hlau hlau welded. Raws li cov txheej txheem tsim tawm, nws muaj peev xwm muab faib ua hom hauv qab no: kub dov, extrusion, txias ncig, hexagonal, vaj huam sib luag ntawm daim duab peb sab, octagonal thiab lwm yam tshwj xeeb zoo li tus hlau tsis muaj hlau.
Piav qhia txog cov qauv ib txwm muaj
ASTM A312
ASTM A213
ASTM A269
ASTM A789 / ASME SA789
ASTM A790 / ASME SA790
ASME SB677
304 vs 316 Stainless Hlau Yeeb Nkab - Cov Lus Qhia Uas Siv Heev
304 stainless hlau yeeb nkab thiab 316 stainless hlau yeeb nkab yog cov ntaub ntawv siv feem ntau hauv kev xeb. Thiab tom qab ntawd peb yuav piav qhia qhov sib txawv ntawm 304 thiab 316.
304 / 304L stainless hlau raj
ASTM A312 TP 304 / 304L stainless hlau yeeb yog qhov ntau yam thiab siv dav hlau stainless rau tom khw. Thiab cov qib no yog austenitic chromium alloy, tseem hu ua "18/8" stainless hlau, vim hais tias cov hlau sib xyaw yog 18% chromium thiab 8% npib tsib xee.
Cov yam ntxwv
Cov ntsiab lus ntawm chromium txhawb kom muaj kev txiav txim siab ntau rau kev xeb thiab oxidation. Cov hlau tsis muaj txhuas yog cov tshuaj tiv thaiv rau feem ntau cov acids oxidizing thiab tuaj yeem tiv taus oxidation li qub, tab sis qhov no tsis txhais tau hais tias steel tsis txawv txav thaum lub sijhawm dhau mus. Cov hlau yuav tsum tau txias ua haujlwm txhawm rau tsim lub zog ua kom tau zoo dua. Rau qhov muaj feem xyuam rau welded stainless hlau yam, ncej weld annealing tej zaum yuav xav tau los muab kev ua hauj corrosion ntau tshaj.
Hom 304 stainless hlau tubing muaj zoo vuam thiab nqus cov khoom sib sib zog nqus. Nws yog qhov yooj yim los tsim thiab ntxuav.
304 stainless hlau yeeb nkab ntawv
Hom 304 / 304L stainless hlau muaj ntau yam thoob plaws hauv kev lag luam, tshwj xeeb hauv kev ua zaub mov noj, vim nws tsis yooj yim rau cov kua qaub rau hauv cov zaub mov ntau. Yog li no, cov hlau no tsim nyog siv rau hauv dab dej, chaw ua haujlwm, thaj chaw npaj thiab tub yees. Nws tseem yog cov khoom siv zoo rau kev lag luam kws tshuaj, xws li chav ua huv.
316L stainless hlau leeg
Hom 316 / 316L yog austenitic stainless hlau nrog ntxiv molybdenum. Piv rau Hom 304 / 304L steel hlau, molybdenum tau zoo dua kev txhim kho corrosion, tshwj xeeb tshaj yog rau pitting thiab crevice corrosion hauv chloride ib puag ncig. Hom 316 / 316L stainless hlau tuaj yeem muab cov tawv zoo thiab cov cuab yeej zoo ntawm qhov chaw sov.
Hom 316 / 316L stainless hlau cov khoom lag luam yog haum rau kev ua haujlwm txias, nruam cov phaj zeb thiab phaj zeb phaj puab, cov tuab tuab txog 60 ntiv.
Cov yam ntxwv ntawm 316 stainless hlau yeeb nkab
Hom 316 / 316L stainless hlau tubing yog tsim rau siv rau hauv cov ntawv thov uas yuav tsum muaj lub zog siab, ua haujlwm tawv thiab ua haujlwm, nrog rau kev ua kom muaj xeb ntau dua. Piv rau 304 stainless hlau, cov alloy muaj ntau feem ntau ntawm moly thiab npib tsib xee, uas txhim kho corrosion tsis kam. Yog li ntawd, nws tuaj yeem yog cov khoom siv zoo tshaj plaws rau kev thov rau hauv cov chaw ib puag ncig hnyav. Hom 316L stainless hlau muaj cov pa roj carbon ntau dua ntau dua li hom 316, txhawm rau txo nws txoj kev weldability.
316 / 316L Stainless Hlau Tube Kev Siv
Hom 316 / 316L cov yeeb nkab tsis sib haum yog siv rau kev hloov siab rau cov kua lossis cov pa roj hauv kev kho dej, kev kho dej khib nyiab, petrochemical, tshuaj, tshuaj thiab lwm yam lag luam. Thiab cov txheej txheem kev teeb tsa suav nrog cov tes tuav khoom, ntawv tshaj tawm thiab kev txhawb nqa cov kav dej rau ntsev dej thiab qhov chaw muaj teeb meem. Piv rau hom 304 stainless hlau, hom 316 stainless hlau yeeb nkab tau qis dua weldability, yog li ntawd nws tsis siv ntau li welded yeeb nkab tshwj tsis yog nws superior corrosion tsis kam dua weldability.
ASTM A312-Rau cov siab kub thiab ua kev hais lus dav dav
ASTM A312 cov lus qhia tshwj xeeb rau kev sib khi, welded thiab hnyav ua haujlwm txias ua haujlwm austenitic stainless hlau yeeb nkab. Cov yeeb nkab steel hlau thiab lub raj tau pom dav hauv sulfuric acid cia tank hauv phosphate fertilizer industries. Cov tshuaj fluorosilicic acid / phosphoric acid reactor cog; Chlorate crystallizer hauv chiv ntau lawm; Qhov cua nyob rau hauv chaw tsim tshuaj lag luam; Cov kuab tshuaj lim rov qab, condenser, yeeb nkab; Bleaching thiab lim cov khoom siv hauv cov ntawv cog hniav thiab ntawv kev lag luam; cov raj xa dej thiab cov twj ntim dej ntawm cov ntug hiav txwv; multi-theem flash distillation, qis-kub multi-effect desalination; seawater condenser rau cov fais fab nroj tsuag, thiab lwm yam.
Tshuaj lom neeg muaj pes tsawg leeg rau ASTM A312 TP304 thiab TP316
Txhua yam khoom
Kev kho cua sov
Kam rau kis nyob rau hauv tuab ntawm phab ntsa ASTM A312
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