304 thiab 316 stainless hlau yog ob qho ntawm cov qib siab tshaj plaws austenitic stainless hlau rau fabricated Cheebtsam, khoom siv, piping, architectural khoom, thiab industrial assemblies.
Thaum xub thawj siab ib muag, xaiv ntawm lawv zoo li yooj yim:304 tsis tshua kim, thaum 316 muaj kev tiv thaiv corrosion zoo dua.Tab sis qhov kev piav qhia no tsis tiav.
Qib raug yog nyob ntawm ntau tshaj tus nqi. Chloride raug, ya raws, kub, tshuaj concentration, fabrication txoj kev, vuam yuav tsum, nto tiav, txij nkawm tej yam kev mob, kev pab cuam lub neej, thiab cov qauv siv tau tag nrho cov kev txiav txim.
Rau ib txoj haujlwm stainless hlau fabrication, cov lus nug tiag tiag tsis yog:
"Puas yog 316 zoo dua 304?"
Nws yog:
"Qhov twg stainless hlau qib muab qhov xav tau kev ua haujlwm yam tsis tau them nyiaj rau cov ntsiab lus tsis tsim nyog alloy?"
Phau ntawv qhia no piav qhia txog qhov sib txawv ntawm 304 thiab 316 stainless hlau thiab muab cov qauv tsim nyog rau kev xaiv cov khoom tsim nyog rau kev tsim khoom.
Dab tsi yog qhov txawv ntawm 304 thiab 316 Stainless Hlau?
Ob leeg 304 thiab 316 yog austenitic stainless hlau. Lawv cov kev tiv thaiv corrosion feem ntau yog los ntawm chromium, uas ua rau muaj kev tsim cov yeeb yaj kiab oxide nyias ntawm qhov chaw.
Qhov tseem ceeb tshaj qhov sib txawv ntawm qhov sib txawv yog qhov ntawd316 muaj molybdenum, thaum tus qauv 304 tsis txhob txwm muaj molybdenum raws li kev sib ntxiv alloying.
Molybdenum txhim kho kev tiv thaiv rau thaj tsam corrosion, tshwj xeebpitting thiab crevice corrosion txuam nrog chloride-muaj ib puag ncig.
Qhov sib txawv ntawd piav qhia vim li cas 316 feem ntau suav hais tias yog:
- Cov khoom siv marine
- Cov qauv ntug hiav txwv
- Kev raug dej ntsev
- Brine systems
- Kev ua tshuaj lom neeg
- Cov cuab yeej siv tshuaj
- Khoom noj khoom haus-kev ntxuav- thaj chaw
- Cov tshuaj chloride- muaj cov chaw ntxuav
- Cov khoom siv sab nraum zoov raug rau txoj kev ntsev
304 tseem yog cov hlau tsis muaj peev xwm tsis tshua muaj peev xwm rau ntau yam kev siv uas tsis muaj cov xwm txheej no.
Rau cov khoom siv ua phaj, ntawv, lossis sawb,ASTM A 240 Cov Lus Qhia/A240M muab cov qauv siv dav dav siv los npog chromium thiab chromium-nickel stainless hlau rau siab- nkoj thiab kev siv dav dav. Cov khoom siv 2026 yog ASTM A240 / A240M-26.
304 vs 316 Corrosion Resistance
Corrosion resistance feem ntau yog qhov kev txiav txim siab hauv 304 vs 316 kev sib tham.
Thaum twg 304 ua tau zoo?
304 yog qhov kev xaiv zoo tshaj plaws rau ntau qhov chaw, suav nrog:
Cov khoom siv sab hauv tsev
Cov chav ua noj ua lag luam
Khoom noj khoom haus- cov khoom siv
Architectural Cheebtsam
General khoom siv
Sab hauv tsev enclosures
Cov khoom siv cia
Brackets thiab kev txhawb nqa
Machinery Cheebtsam
General -lub hom phiaj fabricated assemblies
Hauv qhov chaw qhuav lossis me me corrosive, kev hloov kho ntawm 304 mus rau 316 tuaj yeem muab cov txiaj ntsig zoo me ntsis.
Thaum twg 316 muaj qhov zoo dua?
316 yuav txaus nyiam dua thaum cov khoom raug:
Hiav txwv cua
Ntsev tsuag
Txoj kev ntsev
Brine
Chloride- muaj cov tshuaj ntxuav
Marine ib puag ncig
Qee yam tshuaj lom neeg -ib puag ncig ua haujlwm
Kev ntub dej kev lag luam ib puag ncig
Rov ntxuav dua - cia
Pharmaceutical processing ib puag ncig
Lub ntsiab lus tseem ceeb yog qhov ntawdchloride raug tsis txwv rau dej hiav txwv.
Ib qho khoom siv stainless hauv lub Hoobkas tuaj yeem ntsib cov tshuaj chloride los ntawm kev ntxuav cov tshuaj, cov kua dej, cov dej khib nyiab, lossis cov chaw tsis huv.
Yog li ntawd, tsuas yog faib ib qhov project li "hauv tsev" lossis "sab nraum zoov" tsis txaus.
Cov ntaub ntawv zoo dua - cov txheej txheem xaiv tau txiav txim siab txog qhov chaw ua haujlwm tiav.
304 vs 316 rau Stainless Hlau Fabrication
Xaiv cov qib tsuas yog thawj feem ntawm kev tsim cov khoom siv stainless hlau txhim khu kev qha.
Fabrication zoo tuaj yeem cuam tshuam kev ua haujlwm corrosion.
Ib txheej txheem stainless fabrication tej zaum yuav muaj xws li:
Kev xaiv khoom
Cov ntaub ntawv pov thawj
Txiav
tsim
Tshuab dhos
Vuam
Sib tsoo
Nto xov
Ntxuav
Pickling lossis passivation thaum xav tau
Dimensional soj ntsuam
Kev tswj kom zoo kawg
Txhua kauj ruam tuaj yeem cuam tshuam cov khoom tiav.
304 vs 316 Vuam:
Ob leeg 304 thiab 316 yog cov weldable heev.
Qhov sib txawv ntawm weldability feem ntau tsis tshua tseem ceeb tshajyuav ua li cas cov txheej txheem vuam yog tswj.
Cov txheej txheem welding feem ntau suav nrog:
TIG welding
MIG vuam
Orbital vuam
Automated vuam
Robotic vuam
Kuj welding
Tshwj xeeb huv welding
Rau fabricated stainless los ua ke, cov khoom siv huv si, kev sib koom tsim, kev tswj cua sov, tiv thaiv roj, kev xaiv muab tub lim, thiab tom qab- kev kho vuam tuaj yeem cuam tshuam rau qhov kawg.
Vim li cas tom qab -weld kev kho mob tseem ceeb?
Vuam qhia cov cua kub tseem ceeb rau hauv stainless hlau.
Qhov kub ntawd tuaj yeem tsim:
Kub tint
Nto oxidation
Kev kis kab mob
Kev hloov pauv hauv qhov chaw passive
Cov cheeb tsam raug cuam tshuam rau corrosion yog tias kho tsis raug
Ib qho zoo nkauj welded stainless tivthaiv tseem tuaj yeem tsim teeb meem corrosion yog tias qhov chaw tsis zoo tom qab tsim khoom.
Qhov no yog ib cheeb tsam uas muaj siab -cov khoom lag luam zoo tuaj yeem muab tus nqi ntau dua li tsuas yog muab cov qib raug.
304L vs 316L: Koj Yuav Tsum Siv Dab Tsi?
Thaum vuam stainless hlau, koj tuaj yeem ntsib:
304L
316L
Cov"L" txhais tau tias tsawg carbon.
304L thiab 316L yog tsim los txo cov ntsiab lus carbon piv nrog lawv cov qauv sib piv.
Cov ntsiab lus qis dua yuav pab txo qis kev pheej hmoo ntawm chromium carbide nag lossis daus cuam tshuam nrog vuam thiab raug tshav kub.
Rau cov khoom siv welded hnyav, 304L lossis 316L tuaj yeem nyiam nyob ntawm tus qauv tsim, siv tau, thiab cov kev pabcuam.
304vs304l ua
304 feem ntau tsim nyog rau kev siv dav dav, thaum 304L feem ntau nyiam thaum vuam yuav tsum ua kom nws cov ntsiab lus qis dua.
316vs316l ua
316L yog dav siv rau cov khoom siv welded hauv tshuaj, tshuaj, khoom noj khoom haus -kev ua, dej hiav txwv, thiab kev huv huv qhov chaw uas muaj kev sib xyaw ntawm molybdenum- bearing corrosion kuj thiab cov ntsiab lus carbon tsawg yog qhov xav tau.
Cov qib tseeb yuav tsum tseem raug lees paub tiv thaiv cov khoom siv tshwj xeeb thiab cov kev xav tau ntawm qhov project.
304 vs 316 Tsim thiab Fabrication
Ob qib tuaj yeem yog:
- Khoov
- Rolled
- stamped
- Sib sib zog nqus
- Txiav
- Tsim
- Tshuab
- Welded
Txawm li cas los xij, stainless hlau coj txawv ntawm cov hlau me me thaum tsim khoom.
Austenitic stainless hlau tuaj yeem ua haujlwm- tawv tawv heev.
Qhov no txhais tau tias cov khw fabrication yuav tsum suav rau:
Tool condition
Txiav tsis
Pub tus nqi
Khoov vojvoog
Springback
Kub input
Ua hauj lwm hardening
Kev tiv thaiv nto
Rau precision fabrication, tsuas muaj ib tug laser cutter los yog nias nres tsis txaus.
Cov chaw tsim khoom yuav tsum nkag siab tias cov hlau tsis muaj hlau teb li cas thaum lub sijhawm tsim khoom tag nrho.
304 vs 316 Machining
304 thiab 316 yog ob qho tib si xav tau rau tshuab ntau dua li carbon steels.
Lawv tuaj yeem ua haujlwm- tawv, ua kom sov, thiab tso cov kev xav tau ntau dua rau kev siv cuab yeej.
316 tuaj yeem ua rau me ntsis nyuaj rau tshuab ntau dua 304, tshwj xeeb tshaj yog vim nws cov hlau alloy chemistry thiab toughness.
Kev ua tiav machining feem ntau xav tau:
Cov cuab yeej ntse
Kev ua haujlwm ruaj khov
Tsim nyog txiav ceev
Tswj tus nqi pub
Kev tswj cov coolant zoo
Tsim nyog nti khiav tawm
Kev zam ntawm qhov tsis tsim nyog rub tawm
Rau CNC-machined stainless Cheebtsam, machining parameters yuav tsum tau xaiv raws li cov qib pes tsawg, yam ntxwv, geometry, tooling, thiab khoom siv.
304 vs 316 Nto tiav
304 thiab 316 ob leeg tuaj yeem tau txais ntau yam ntawm cov khoom tiav.
Common finishes muaj xws li:
Mill tiav
Txhuam txhuam
Satin tiav
Tsis muaj . 4 tas
Polished tiav
High - polish tiav
Custom cosmetic tiav
Qib nws tus kheej tsis tuaj yeem txiav txim siab qhov twg stainless hlau yuav zoo dua.
Ob qho khoom ua los ntawm cov qib sib txawv tuaj yeem muaj qhov zoo sib xws.
Qhov tseem ceeb tshaj plaws muaj xws li:
Kev npaj nto
Kev sib tsoo zoo
Abrasive xaiv
Polishing txheej txheem
Kev tswj kev kis kab mob
Kev ntxuav zaum kawg
Passivation
Rau qhov pom architectural los yog huv si Cheebtsam, nto finishing yuav tsum tau teev raws li ua tib zoo raws li cov khoom qib.
Vim li cas Stainless Hlau Passivation Matters?
Passivation yog ib feem tseem ceeb ntawm stainless hlau xov.
Tom qab txiav, sib tsoo, machining, los yog vuam, lub stainless nto yuav muaj cov kab mob los yog qhov chaw uas lub ntuj passive txheej tau cuam tshuam.
Cov txheej txheem passivation tswj tau tuaj yeem pab kho qhov corrosion{0}} tiv taus qhov chaw.
Qhov no yog qhov tseem ceeb tshwj xeeb thaum tsim cov khoom siv rau:
Cov cuab yeej siv tshuaj
Kev ua zaub mov
Kev ua tshuaj lom neeg
Kev siv dej hiav txwv
Cov cuab yeej kuaj
Sanitary systems
High - ib puag ncig huv
Txawm li cas los xij, passivation yuav tsum tsis txhob raug kho raws li kev hloov pauv rau kev xaiv cov qib stainless hlau kom raug.
Ib qho kev tivthaiv passivated 304 tsis zoo li 316 hauv cov tshuaj chloride- ib puag ncig hnyav.
Kev xaiv qib thiab kho qhov chaw daws teeb meem sib txawv.
304 vs 316 Tus Nqi: Puas yog 316 Tsim Nyog Tus Nqi?
316 feem ntau raug nqi ntau dua 304 vim tias nws cov chemistry alloy muaj xws li molybdenum thiab feem ntau sib txawv nickel ntau yam.
Tab sis cov khoom uas pheej yig tshaj tsis tas yuav yog tus nqi qis tshaj - kev daws teeb meem.
Xav txog tus nqi tag nrho ntawm kev ua tswv cuab.
Ib qho 304 feem yuav pib raug nqi tsawg dua tab sis yuav kim yog tias nws:
Txhim kho corrosion ntxov ntxov
Yuav tsum tau ntxuav tas li
Xav tau kev hloov
Ua rau cov khoom poob qis
Ua tsis tiav qhov yuav tsum tau ua
Yuav tsum tau saib xyuas dua
Tsim kev txhawj xeeb txog kev kis kab mob
Hloov pauv, kev qhia 316 txhua qhov chaw kuj tuaj yeem nce nqi yam tsis tsim nyog.
Rau qhov chaw qhuav hauv tsev uas tuaj yeem ua haujlwm tau zoo rau ntau xyoo hauv 304, them tus nqi ntau heev rau 316 yuav muab tus nqi ntxiv me ntsis.
Kev suav zoo dua
Es tsis txhob nug:
"Tus nqi ntau npaum li cas 316?"
Nug:
"Yuav ua li cas ntxiv corrosion kuj txo qhov kev pheej hmoo ntawm lub neej?"
Qhov ntawd yog ib lo lus nug zoo dua engineering.
Tiv tauj peb rau kev txiav txim lag luam wholesale
Shaanxi Tonghui Steel Co., Ltd tuaj yeem muab cov raj hauv kev cai ntev, tiav, thiab cov duab kom haum rau koj qhov project. Lag luam wholesale 304/316/316L/904/Duplex 2205 Stainless hlau nqe.Tiv tauj pebrau kev hais lus lossis kev txhawb nqa.
Stainless hlau FAQs
Q1: Puas yog 316 stainless hlau zoo dua 304?
Tsis universally . 316 muab kev tiv thaiv zoo dua rau cov tshuaj tiv thaiv hauv zos hauv ntau cov tshuaj chloride- muaj ib puag ncig vim tias nws muaj molybdenum. 304 feem ntau yog qhov kev xaiv pheej yig dua thiab tsim nyog rau qhov chaw me me.
Q2: Dab tsi yog qhov txawv ntawm 304 thiab 316 stainless hlau?
Qhov sib txawv ntawm qhov tseem ceeb tshaj plaws yog qhov sib ntxiv ntawm molybdenum hauv 316. Qhov sib ntxiv ntawd txhim kho kev tiv thaiv rau pitting thiab crevice corrosion, tshwj xeeb tshaj yog nyob rau hauv chloride- muaj ib puag ncig.
Q3: Puas yog 304 stainless hlau zoo rau siv sab nraum zoov?
Nws tuaj yeem ua tau, nyob ntawm ib puag ncig. Cov chaw nyob sab nraum zoov uas muaj kev nyab xeeb los yog huv si kuj yuav haum rau 304. ntug hiav txwv dej, ntsev- tshuaj tsuag, txoj kev- ntsev, lossis chloride- hnyav hnyav tuaj yeem nyiam 316.
Q4: Puas yog 316 stainless hlau xeb- pov thawj?
Tsis muaj stainless hlau yuav tsum tau piav raws li xeb kiag li - pov thawj nyob rau hauv txhua qhov chaw . 316 muab kev txhim kho corrosion nyob rau hauv ntau qhov chaw xav tau, tab sis cov kab mob ntog, crevices, tshuaj, kub, thiab tsis zoo fabrication tseem tuaj yeem ua rau corrosion.
Q5: 304 thiab 316 stainless hlau puas tuaj yeem welded?
Yog lawm. Ob leeg yog heev weldable. Cov txheej txheem vuam kom raug, kev huv ntawm cov khoom siv, kev tswj cua sov, kev xaiv muab tub lim, thiab tom qab- vuam vuam yog qhov tseem ceeb rau cov txiaj ntsig zoo.
Q6: Kuv puas yuav tsum siv 304 lossis 304L?
304L feem ntau xaiv thaum cov ntsiab lus qis dua yog qhov zoo rau kev tsim cov welded. Qhov kev xaiv raug yog nyob ntawm qhov kev xav tau ntawm vuam thiab cov kev qhia tshwj xeeb.
Q7: Kuv puas yuav tsum siv 316 lossis 316L?
316L feem ntau xaiv rau welded fabrications qhov twg cov ntsiab lus ntawm cov pa roj carbon tsawg yog qhov xav tau thaum khaws cov corrosion-cov yam ntxwv tsis kam ntawm 316 alloy tsev neeg.
Q8: Koj puas tuaj yeem qhia 304 los ntawm 316 los ntawm qhov pom?
Tsis yog, tsis ntseeg. Lawv tuaj yeem muaj qhov tshwm sim zoo ib yam thiab qhov chaw tiav. Cov ntaub ntawv pov thawj, traceability, thiab cov ntaub ntawv pov thawj tsim nyog muaj kev vam meej dua.
Q9: Puas yog 316 stainless hlau kim dua 304?
Feem ntau yog. Cov ntsiab lus alloying ntxiv, tshwj xeeb yog molybdenum, ua rau tus nqi siab dua. Tus nqi yuav tsum raug soj ntsuam raws li qhov yuav tsum tau muaj kev ua haujlwm corrosion thiab tus nqi lifecycle.
Q10: Qhov twg yog qhov zoo dua rau kev siv dej hiav txwv, 304 lossis 316?
316 feem ntau yog qhov pib nyiam vim tias thaj chaw hauv hiav txwv feem ntau cuam tshuam nrog cov tshuaj chloride. Txawm li cas los xij, cov xwm txheej hauv hiav txwv loj tuaj yeem xav tau kev tshuaj xyuas engineering ntxiv thiab muaj peev xwm ntau dua - cov khoom siv alloy.
Q11: Cov hlau tsis muaj hlau twg zoo dua rau kev ua zaub mov?
Ob leeg 304 thiab 316 tau siv dav hauv zaub mov-txog daim ntawv thov. Cov qib tsim nyog nyob ntawm cov khoom noj khoom haus, kev tu chemistry, chloride raug, kub, huv si, thiab tsim khoom siv.
Q12: Puas yog 316 stainless hlau xav tau passivation?
Seb puas yuav tsum tau passivation nyob ntawm daim ntawv thov, specification, fabrication txheej txheem, thiab cov neeg yuav tsum tau. Hauv kev xav tau kev huv lossis corrosion- cov ntawv thov nkag siab, tsim nyog tshaj tawm -fabrication deg kho tej zaum yuav yog ib feem tseem ceeb ntawm cov lus qhia.
Q13: Puas yog 316 ib txwm kav ntev dua 304?
Tsis tas li. Kev pabcuam lub neej nyob ntawm ib puag ncig thiab tsim qauv. Hauv qhov chaw me me, ob qho tib si tuaj yeem muab kev pabcuam ntev. Hauv chloride- ib puag ncig hnyav, 316 tuaj yeem muab qhov txiaj ntsig zoo dua qub.
