Thaum ob qho tib si 316 thiab 904 stainless cov hlau yog corrosion resistant, 904 stainless hlau muaj ntau qhov kev txiav txim siab ntawm corrosion thiab kuj tseem ceeb dua li 316 stainless; Qhov tseem ceeb, 904 yog suav hais tias yog "qib qhab nia" siab dua "stainless hlau nrog kev ua haujlwm zoo dua hauv cov xwm txheej huab.
316 thiab 904 khoom siv
316 Stainless Hlau: Cov khoom xyaw thawj hauv 316 yog hlau, chromium (16-18%), npib tsib caug ({{}}%). Qhov sib ntxiv ntawm Molybdenum muab 316 steel hlau zoo dua rau corrosion, tshwj xeeb hauv cov chloride ib puag ncig zoo li dej hiav txwv lossis cov ntsev. Cov allolo no tseem tiv taus pitting thiab crevice corrosion, uas ua rau nws xaiv tau saum hauv marine thiab ntug hiav txwv ib puag ncig.
904L Stainless Hlau: Cov allolo no yog qhov tshwj xeeb me ntsis. Nws muaj cov hlau, chromium (19-23%), npib tsib}}}}}} {{%). Cov ntsiab lus tsib xee thiab molybdenum cov ntsiab lus, nrog rau tooj liab, txhim kho cov kev tiv thaiv ib puag ncig uas zoo li cov sulfuric lossis phosphoric acid. 904L feem ntau xaiv thaum 316 tsuas yog tsis muaj kev tiv thaiv txaus, tshwj xeeb tshaj yog hauv kev lag luam cuam tshuam nrog cov tshuaj muaj zog.
Stainless hlau: 316 thiab 904 nws ua li cas
Cov txheej txheem tsim khoom ntawm stainless hlau feem ntau koom nrog cov kauj ruam tseem ceeb no:
1. Melting:Cov txheej txheem pib nrog melting ntawm raw cov ntaub ntawv, xws li hlau ore, chromium, thiab lwm yam alloy arc rauv (EAF) lossis cov pa hluav taws kub (me). Cov ntaub ntawv yog rhuab rau cov kub kub siab (li 1,600 degree lossis 2,900 degree f) los ua cov hlau molten.
2. Kev ua haujlwm:Yuav kom ua tiav cov khoom uas xav tau, ntau yam alloying tau ntxiv thaum lub sij hawm melting. Rau 316 thiab 904L, Molybdenum, npib tsib xee, thiab chromium yog thawj cov ntsiab lus ntxiv, uas txhim kho lawv txoj kev xeb thiab txhim kho lawv lub zog.
3. Casting:Thaum cov alloy tau yaj, nws yog nchuav rau hauv cov pwm los ua cov lis dej lossis cov nplais. Cov no yog ces txias thiab sololified rau hauv cov duab uas tuaj yeem ua tau txuas ntxiv.
4. Kev tsim thiab kos duab:Tom qab tau ua pov thawj, lub stainless hlau tau dhau los ntawm dov mills lossis lwm cov txheej txheem sau los ua cov ntawv, cov paib, tuav, lossis lwm cov duab tshwj xeeb. Qhov no yog hu ua kub dov, ua raws los ntawm cov dov txias, uas kho cov khoom kom tau raws li qhov muaj tshwj xeeb xav tau.
5. Annealing:Tom qab tsim, cov hlau yuav raug rhaub hauv lub cub tawg (cov txheej txheem hu ua annealing) los daws kev ntxhov siab thiab txhim kho nws qhov kev ntxhov siab. Qhov no pab tau hauv kev tsim cov du, ci uas ua tiav cov hlau tsis muaj npe paub.
6. Pickling thiab Passivation:Txhawm rau tshem tawm cov nplai oxide tsim thaum ua cua sov lossis tsim, cov hlau stainless yog saib nrog cov tshuaj acidic, xws li nitric acid. Tus txheej txheem no hu ua pickling. Passive ua raws li kev ua raws li cov txheej txheem ntawm cov roj chromium oxide txheej uas tiv thaiv cov hlau los ntawm kev corrosion.
Tong Hui Stainless Hlau Chaw Tsim Tshuaj 316 thiab 904L Stainless hlau muaj nyob rau hauv ntau hom ntaub ntawv: cov ntawv txheeb, daim hlau, kav dej, thiab kab. Cov tuab tuab sib txawv nyob ntawm daim ntawv thov. Piv txwv li, hauv kev tsim kho lossis cov tshuab, cov hlau no tuaj yeem siv rau hauv cov phiaj hlau thicker, thaum hauv kev lag luam khoom noj lossis kev lag luam me me. Qhov kev xaiv ntawm cov tuab nyob ntawm lub zog yuav tsum tau ua thiab qib kev txhawm rau txhawm rau txhawm rau cov khoom corrosive.
Stainless hlau 316 thiab Stainless Hlau 904L Hoobkas COA
| Ntiag tug | Stainless hlau 316 | Stainless hlau 904L |
| Tshuaj Muaj Tshuaj | Hlau, chromium (16-18%), npib tsib caug ({%), molybdenum ({2}}%) | Hlau, chromium (19-23%), npib tsib caug ({}}}}} {}}}}%) |
| Corrosion Kuj | Zoo heev rau General corrosion, tshwj xeeb tshaj yog nyob hauv chloride ib puag ncig | Superior tsis kam rau acidic ib puag ncig, suav nrog sulfuric thiab phosphoric acids |
| Lub zog tensile | {{0 {}} MPa (75, {2}}}, {3}} psi) | {{0 {}} MPa (75, {2}}}, {3}} psi) |
| Paib lub zog | {{0 {0}} MPa (30, 000 - 42}}} psi) | {{0 {}} mpa mpa (32, {2}}}, {3}} psi) |
| Elongation | 40-50% | 40-50% |
| Hardness (Rockwell) | 92 HRB | 90 hrb |
| Ceev | 7.98 g / cm | 8. {00 g / cm |
| Melting taw tes | 1375 - 1400C (2500 - 2550F) | 1350 - 1400C (2462 - 2552F) |
| Thermal conductivity | 16.2 w / mk ntawm 100c | 16.3 w / mk ntawm 100c |
| Hluav taws xob tiv thaiv hluav taws xob | {{0 {}}. 072m ntawm 20c | 0. 075m ntawm 20c |
| Cov Khoom Sib Nqus | Tsis muaj hlau nplaum (tej zaum yuav dhau los ua kev sib nqus me ntsis thaum txias-ua haujlwm) | Tsis muaj hlau nplaum |
| Hwj txwv | Zoo, nrog rau cov cua sov ua ntej | Zoo heev, txawm tias kev saib xyuas xav tau kom tsis txhob tawg thaum lub sijhawm vuam |
| Cov foos muaj | Cov ntawv txheeb, daim hlau, tuav, kav dej, tubing, fittings | Cov ntawv txheeb, daim hlau, tuav, kav dej, tubing, fittings |
| Raug Siv Siv | Marine ib puag ncig, chaw ua khoom noj, khoom siv kho mob, siv tshuaj lom neeg | Tshuaj lom neeg ua yeeb yam, cov ntaub ntawv, cov ntawv thov tawm, ua zaub mov (high acid mob) |
| Tus nqi | Qis dua (ntau tus nqi-zoo) | Siab dua (vim xaim sib xyaw ua ke) |
* Cov lus qhia:Thaum kev yuav khoom, nws yog qhov tsim nyog los qhia meej lub hom phiaj (dog dig thiab zaub mov qib, qib plab), xav tau theem steel los muab qib sib xwsCoathiab daim ntawv pov thawj luam, thiab xa cov hnoos qeev mus kuaj thib peb (xws li SGS) los txheeb xyuas kev coj dawb huv thiab kev nyab xeeb.
Dab tsi yog qhov txawv ntawm 316 thiab 904 stainless hlau
1. 316 Stainless Hlau: Vim tias nws zoo heev corrosion tsis kam, 316 yog feem ntau siv hauv kev lag luam hauv qab no:
- Cov Kev Siv Marine: Nws tiv taus dej hiav txwv thiab cov roj cua tshuab, ua rau nws zoo tagnrho rau cov cav, offshore roj rigs, thiab marine kho vajtse.
- Khoom Noj thiab Dej Haus: Nws tau siv nyob rau hauv cov cuab yeej ua lag luam xws li tso tsheb hlau luam, piping, thiab mixers, uas tsis kam rau kev paug thiab corrosion yog qhov tseem ceeb
- Cov Khoom Siv Kho Mob: Nws tau siv dav rau kev phais cov twj, kev cog, thiab lwm yam cuab yeej kho mob vim tias nws biocompatibility thiab tsis kam ua xeb thiab xeb.
- Kev Lag Luam: 316 yog ib txwm muaj nyob rau hauv reactors, kev sib pauv cua sov, thiab lwm yam khoom siv uas tsis tshua muaj kev cuam tshuam tab sis tsis yog qhov xwm txheej huab.
2. 904 stainless hlau: Nrog nws zoo tshaj rau ob qho oxidation thiab corrosion, tshwj xeeb tshaj yog nyob rau hauv cov kua qaub heev lossis kev siv roj khov, 904L feem ntau siv hauv:
- Tshuaj lom neeg thiab petrochemical Industries: Nws yog qhov zoo tagnrho rau cov khoom sib xyaw uas tau sib cuag nrog cov sulfuric acid lossis lwm yam tshuaj hnyav.
- Kws tsim khoom lag luam: 904L ua kom muaj kev ncaj ncees ntawm cov khoom siv thaum tuav cov kua qaub muaj zog, ua kom muaj kev tswj hwm zoo hauv cov txheej txheem rhiab.
- Cov Ntawv Thov Offshore: Zoo ib yam li 316, tab sis nyob rau hauv ntau cov xwm txheej huab, xws li platforms raug rau cov ntug dej hiav txwv.
- Kev Ua Noj: Thaum lub 316 muaj qee zaum muaj ntau dua, 904L qee zaum siv nyob rau hauv cov zaub mov kev lag luam uas cuam tshuam nrog cov tshuaj acidic ntau dua lossis xav tau zoo dua tag nrho cov corrosion.
Kev nyab xeeb thiab kav ntev
Ob cov ntaub ntawv muaj kev nyab xeeb rau siv nyob rau hauv lawv txoj kev xaiv ib puag ncig, tab sis muaj cov tseem ceeb tshaj plaws hauv kev ntxhov siab hauv kev ntxhov siab:
- 316 Stainless Hlau: Nws yog ntau tshaj li tsim nyog rau feem ntau cov tub rog, kev kho mob, thiab cov ntaub ntawv ntsig txog khoom noj. Thaum nws yog corrosion-resistant, nws tseem muaj kev puas tsuaj rau qee qhov kev puas tsuaj los ntawm cov tshuaj tsis zoo thiab cov accesly concentrated acids).
- 904L Stainless Hlau: Nws yog tus mus-rau alloy rau huab cua. Nws nce molybdenum thiab cov ntsiab lus tooj liab tau muab nws zoo nkauj dua rau corrosion los ntawm cov nroj tsuag tshuaj, offshore roj rigs, thiab lwm thaj chaw hnyav. Nws yog qhov txiaj ntsig tshwj xeeb rau hauv cov ntawv thov uas 316 yuav swb lossis xav tau kev saib xyuas nquag nquag.
Puas yog vim li cas lag luam wholesale stainless hlau nqe
316 Stainless Hlau:Feem ntau, 316 yog tsawg dua 904L vim nws cov ntsiab lus npib tsib xee thiab molybdenum cov ntsiab lus. Qhov no ua rau nws ntxim nyiam dua rau kev siv dav dav uas huab kev ua kom zoo tsis yog qhov tseem ceeb.
904L Stainless Hlau:Cov ntsiab lus siab tshaj xas ua rau 904L kim dua nws muaj nyob rau hauv cov chaw muaj ib puag ncig uas muaj kev ncaj ncees feem ntau yog tus nqi. Yog tias muaj kev tsis kam ntev yog qhov tseem ceeb, kev nqis peev ntxiv tuaj yeem tsim nyog nws.
Los ntawm kev xaiv txoj caiStainless Hlau TsumRau koj txoj haujlwm, Tong HUI tuaj yeem ua kom pom tseeb tias kev nyab xeeb ntawm cov ntaub ntawv thiab kev ncua ntawm koj cov khoom siv.
Cov qhua tuaj noj mov tawm tswv yim ntawm Tong hui 904L stainless hlau
Zoo thiab Durability:"Kuv tsis ntev los no yuav tus nplaig Tong904L Stainless Hlau Huv TshuabRau kuv txoj haujlwm tsim tawm, thiab kuv yuav tsum hais, Kuv yog kev txaus siab rau nws qhov zoo. Cov khoom siv yog muaj zog, tiv taus corrosion, thiab tuav tau zoo nyob rau hauv qhov chaw kub-ib puag ncig. Nws mloog zoo li kev nqis peev ntev. "
Yooj yim siv:"Cov hlau tsis muaj zog no yooj yim rau kev ua haujlwm nrog. Peb muaj peev xwm los txiav thiab tsim kev siv zog, thiab qhov ua tiav yog du.
Tus nqi rau nyiaj:"Txawm hais tias nws yog me ntsis nqi tshaj li qee cov hlau tsis muaj zog, tus nplaig hu rau tus nqi. Kuv ntseeg tias nws muaj nqis rau kev nqis peev."
Shipping thiab Ntim:"Kuv tau txais kuv daim ntawv xaj kom ncav sijhawm, thiab ntim khoom tau ruaj ntseg, ua kom muaj kev puas tsuaj yam tsis muaj kev puas tsuaj rau txhua yam."
Kuj pom
- Precision Steel Yeeb Nkab Tus Neeg Siv Khoom Siv los tsim 3DDD AROTYPES
- Lub Chaw Tsim Tshuaj Stainless Hlau Chaw Tsim Tshuaj: {{} l 316 904 l 310s
- Muaj peev xwm 304 stainless hlau yeeb nkab siv rau cov khoom siv kho mob
Cov Lus Nug
1. Yuav ua li cas 904l stainless hlau sib piv rau 316 nyob rau hauv cov nqe lus ntawm corrosion tsis kam?
904L yog tiv taus ntau dua rau corrosion dua 316, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig corrosive heev. Thaum 316 yog cov tshuaj chloride zoo heev, 904l excrels rau kev tawm tsam kev puas tsuaj los ntawm sulfuric acid, thiab lwm yam tshuaj lom. 904L yog feem ntau cov khoom siv ntawm kev xaiv hauv cov xwm txheej uas txawm tias lub corrosion reforist tiv thaiv ntawm 316 yog tsis txaus.
2. Tau 316 thiab 904L stainless hlau yuav welded?
Ob lub 316 thiab 904L stainless hlau tuaj yeem welded, tab sis lawv yuav tsum tau kev saib xyuas tshwj xeeb kom zam cov teeb meem xws li carbide nag lossis nag lossis daus. Rau vuam 904L, nws tau pom zoo kom siv cov pas nrig tsawg
3. Puas yog 316 stainless hlau sib nqus?
Tsis yog, 316 stainless hlau feem ntau tsis yog sib nqus, txawm tias nws tuaj yeem sib nqus me ntsis tom qab ua haujlwm txias lossis welded. Txawm li cas los xij, nws khaws nws cov khoom uas tsis muaj hlau nplaum hauv cov ntawv thov feem ntau.
4. Puas yog 904L stainless hlau sib nqus?
Zoo li 316, 904L stainless hlau kuj tsis yog sib nqus hauv nws cov lus qhuab qhia (tsis kho). Txawm li cas los xij, kev ua haujlwm txias lossis siv vuam yuav induce me ntsis Magnetism.
5. Dab tsi yog tus nqi sib txawv ntawm 316 thiab 904L stainless hlau?
904L feem ntau kim dua 316 vim nws cov ntsiab lus npib tsib xee thiab molybdenum cov ntsiab lus, nrog rau nws cov kev ua kom zoo dua. Tus nqi ntsuas kiag tshaj yog nyob ntawm kev ua lag luam tam sim no rau kev ua kom zoo li npib li npib tsib xee thiab molybdenum.
6. Muaj peev xwm 316 thiab 904l stainless hlau siv rau kev haus dej haus?
Yog lawm, ob qho tib si 316 thiab 904L yog tsim nyog rau cov ntawv thov haus dej. Lawv yog NSF-ntawv pov thawj thiab nquag siv nyob rau hauv cov kav dej rau cov dej muaj txiaj ntsig vim lawv corrosion tsis kam thiab tsis muaj kev cuam tshuam.
7. Kuv tuaj yeem qhia li cas yog tias ib daim ntawm stainless hlau yog 316 lossis 904L?
Txoj hauv kev zoo tshaj plaws los txiav txim siab seb cov hlau tsis muaj zog yog 316 lossis 904L yog los ntawm cov khoom siv tshuaj, xws li kev tsom ntsuas tshuaj chem lossis x-aws fluorescence (XRF) kev sim. Txawm li cas los xij, 904L feem ntau muaj cov ntsiab lus npib tsib xee thiab molybdenum cov ntsiab lus piv rau 316, uas tuaj yeem pab hauv kev txheeb xyuas los ntawm kev sib tw.
8. Puas muaj kev txhawj xeeb ib puag ncig nrog 316 lossis 904L stainless hlau?
Ob qho tag nrho 316 thiab 904L tau suav tias yog cov kev xaiv ib puag ncig zoo vim lawv lub siab rov ua dua tshiab. Lawv yog cov ruaj khov thiab ntev-ntev, uas txo cov zaus ntawm kev hloov pauv. Txawm li cas los xij, qhov kev txiav tawm thiab rho tawm cov hlau xws li npib tsib xee thiab molybdenum rau cov alloys tuaj yeem muaj kev cuam tshuam ib puag ncig.