Dab tsi yog qhov txawv ntawm 302 stainless hlau thiab 316 stainless hlau?
Dab tsi yog qhov txawv ntawm 302 stainless hlau thiab 316 stainless hlau?
Qhov sib txawv tseem ceeb ntawm 302 thiab 316 stainless hlau nyob hauv lawv cov ntsiab lus molybdenum. Qhov sib ntxiv ntawm molybdenum muab 316 stainless hlau ntau dua corrosion kuj, tshwj xeeb tshaj yog tawm tsam chlorides (xws li dej hiav txwv) thiab pitting corrosion, ua rau nws zoo tagnrho rau marine los yog tshuaj ib puag ncig. 302 stainless hlau, ntawm qhov tod tes, yog ib tug siab - zog, nqi- kev xaiv zoo, zoo ib yam li 304 stainless hlau qhov twg tsis haum rau tej yam kev mob. tseem ceeb. Tsis tas li ntawd, vim qhov sib ntxiv ntawm molybdenum, 316 stainless hlau yuav tsum tau nce me ntsis ntawm npib tsib xee los tswj nws cov qauv austenitic, uas, thaum nce nws tag nrho cov nqi, kuj txhim kho nws cov kev ua tau zoo.
Dab tsi yog qhov kub ntawm annealing rau 302 stainless hlau?
1850/2050ºF
Annealing: Kub rau 1850/2050ºF (1010/1121ºC) thiab tom qab ntawd dej quench. Brinell hardness yog kwv yees li 150. Hardening: Hardened tsuas yog los ntawm kev ua haujlwm txias. Kub ua haujlwm: Tus kws ntoo 302 stainless hlau yog ib qho yooj yim rau forge, kub ntxhov siab, riveting, thiab chim siab.
Qhov sib txawv ntawm qhov sib txawv ntawm 302 stainless hlau thiab 316 stainless hlau
| Feature | 302 Stainless hlau | 304 Stainless hlau |
|---|---|---|
| Cov ntsiab lus carbon | Txog li 0.15% (siab dua me ntsis) | Txog li 0.08% (qis dua) |
| Chromium Cov ntsiab lus | Kwv yees li 17-19% (hais, tsis tau teev tseg) | 18-20% |
| Cov ntsiab lus Nickel | Kwv yees li 8-10% (hais, tsis teev) | 8-10.5% |
| Lub zog | Txhim kho lub zog vim muaj cov pa roj carbon ntau dua | Lub zog zoo, nrog rau qhov tseem ceeb ntawm corrosion kuj |
| Corrosion / Oxidation Resistance | Ntau dua rau corrosion nyob rau hauv tej yam kev mob yog tsis kho kom zoo | Muaj zog tiv taus corrosion thiab oxidation, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig ntub los yog tshuaj lom neeg hnyav |
| Cov yam ntxwv tseem ceeb | Cov pa roj carbon ntau dua kom muaj zog ntxiv | Balanced muaj pes tsawg leeg rau superior corrosion kuj |
Corrosion Resistance
Ib qho ntawm qhov sib txawv tseem ceeb tshaj plaws ntawm 302 thiab 316 stainless hlau nplooj ntawv yog lawv cov corrosion kuj. 302 stainless hlau pom zoo corrosion kuj nyob rau hauv ntau qhov chaw, xws li ib puag ncig sab hauv tsev thiab sab nraum zoov. Nws tuaj yeem tiv taus qhov yaig ntawm huab cua, dej, thiab qee yam tsis yog - tshuaj corrosive. Txawm li cas los xij, nyob rau hauv ib puag ncig uas muaj cov tshuaj chloride siab, xws li cov chaw ntug dej hiav txwv lossis thaj chaw muaj huab cua salinity, 302 stainless hlau tuaj yeem tsim pitting thiab corrosion thaum lub sijhawm.
Nyob rau hauv sib piv, 316 stainless hlau qhia tsis tshua muaj siab corrosion kuj nyob rau hauv ib tug ntau yam ntawm hnyav ib puag ncig. Lub xub ntiag ntawm molybdenum nyob rau hauv 316 stainless hlau ua rau nws tshwj xeeb tshaj yog haum rau daim ntaub ntawv nyob rau hauv marine ib puag ncig, tshuaj nroj tsuag, thiab cov zaub mov kev lag luam, qhov twg raug rau dej ntsev, acids, thiab lwm yam corrosive tshuaj. Piv txwv li, nyob rau hauv ntug dej hiav txwv kev tsim kho tej yaam num, siv 4x8-ko taw 316 stainless hlau los xij ua kom muaj kev ruaj ntseg ntev dua li 302 stainless hlau los xij.
Lub cev muaj zog sib piv: 302 Stainless Hlau vs 316 Stainless Hlau
| Khoom | 302 Stainless hlau (UNS S30200) | 316 Stainless hlau (UNS S31600) |
|---|---|---|
| Qhov ntom | 8.03 g / cm³ | 8.00 g / cm³ |
| Melting Range | 1400-1450 ° C | 1375-1400 ° C |
| Thermal conductivity (20 ° C) | 16.2 W/m·K | 16.3 W/m·K |
| Tshwj xeeb kub muaj peev xwm (20 ° C) | 500 J/kg · K | 500 J/kg · K |
| Coefficient ntawm Thermal Expansion (20-100 ° C) | 17.2 μm / m ° C | 16.0 μm / m ° C |
| Modulus ntawm Elasticity | 193 gp ua | 193 gp ua |
| Hluav taws xob tiv taus (20 ° C) | 0,72m ;ua | 0,74m wb |
| Sib nqus Permeability (Annealed) | Tsis yog-magnetic (austenitic) | Tsis yog-magnetic (austenitic) |
| Poisson tus ratio | 0.29 | 0.29 |
| Hardness (Annealed) | 150-200 HB | 150-200 HB |
| Qhov Kev Pab Cuam Siab Tshaj Plaws (Nruam) | ≈ 870 ° C | ≈ 870 ° C |
| Thermal diffusivity (20 ° C) | 4.0 mm² / s | 4.1 mm² / s |
| Thermal Expansion (20-400 ° C) | 18.0 μm / m ° C | 17.5 μm / m ° C |
| Specific Gravity | 8.03 | 8.00 |
| Thermal conductivity (500 ° C) | 21.5 W/m·K | 21.5 W/m·K |
| Kub tshwj xeeb (100 ° C) | 530 J/KG | 530 J/KG |
Xaus
Hauv cov ntsiab lus, 302 thiab 316 stainless hlau sib txawv hauv cov tshuaj muaj pes tsawg leeg, kev tiv thaiv corrosion, lub zog, weldability, nqi, thiab kev siv. Kev nkag siab txog qhov sib txawv no yog qhov tseem ceeb rau kev xaiv txoj cai rau koj qhov project.
Yog tias koj xav tau cov ntaub ntawv ntau ntxiv lossis muaj cov kev cai tshwj xeeb rau cov ntawv hlau stainless, thov koj xav tiv tauj peb. Txawm hais tias koj thaum kawg xaiv 302 lossis 316 stainless hlau, kom ntseeg tau tias qhov zoo thiab qhov tsim nyog ntawm cov khoom yog qhov tseem ceeb rau kev ua tiav ntawm koj qhov project. Yog tias koj xav tau lwm yam khoom siv stainless hlau, koj tuaj yeem tshawb xyuas peb cov khoom muag 304 stainless hlau rau ntau txoj kev xaiv.
Gnee Steel tshwj xeeb hauv kev tsim khoom ntawm ntau yam khoom siv stainless hlau. Gnee Steel cov khoom ntim khoom suav nrog: Hlau Strapping: Cov kav dej nrog ib txoj kab uas hla ntawm 3 ntiv tes los yog tsawg dua yog feem ntau khi ua ke nrog polypropylene zaj duab xis los tiv thaiv xeb thaum thauj dej hiav txwv, thiab tom qab ntawd khi nrog cov hlua hlau. Ntoo Cases / Crates: Cov kav dej feem ntau yog ntim rau hauv cov rooj ntoo lossis cov thawv los tiv thaiv cov kav dej thaum lub sij hawm thauj mus los, tshwj xeeb tshaj yog cov uas ntev dua los yog muaj qhov loj dua. Seaworthy Export Ntim: Cov neeg muag khoom feem ntau siv cov txheej txheem seaworthy export ntim, uas tuaj yeem suav nrog ntau yam khoom siv thiab cov txheej txheem los tiv thaiv cov kav dej thaum thauj. Tarpaulin Ntim: Qhov no tiv thaiv los nag, dej hiav txwv, thiab lwm yam sab nraud los ntawm kev nkag mus rau lub thawv xa khoom thaum thauj. Gnee Steel tshwj xeeb hauv kev tsim thiab muag cov ntaub ntawv alloy. Gnee Steel cov khoom siv dav siv hauv aerospace, tshuaj, hluav taws xob, tsheb, thiab hluav taws xob nuclear, thiab peb tuaj yeem muab cov khoom siv alloy customized raws li cov neeg siv khoom xav tau. Rau cov khoom siv alloy pricing lossis customized alloy cov ntaub ntawv daws teeb meem, thov hu rau peb rau ib qho kev tsocai:ru@gneesteelgroup.com