316 vs 18-8 Stainless hlau: Qhov twg zoo dua?
316 vs 18-8 Stainless hlau: Qhov twg zoo dua?
Vim yog qhov sib ntxiv ntawm molybdenum, 316 stainless hlau yog tsim rau hnyav corrosive ib puag ncig (xws li marine / tshuaj ib puag ncig) vim nws superior corrosion kuj; thaum 18/8 (304 hom) stainless hlau yog tus qauv thiab tus nqi- kev xaiv zoo rau lub hom phiaj dav dav (khoom noj khoom haus, khoom siv hauv tsev), muab qhov zoo tab sis tsis muaj qhov tshwj xeeb corrosion kuj. Yog li ntawd, qhov kev xaiv "zoo dua" nyob ntawm daim ntawv thov yuav tsum tau ua thiab pob nyiaj siv.
Puas yog cov hlau nplaum nyiam 316 stainless hlau?
Vim nws cov ntsiab lus siab nickel, 316 stainless hlau yog suav tias yog "tsawg kawg magnetic" hom stainless hlau. Txawm li cas los xij, yog tias cov khoom lag luam stainless hlau 316 tau dhau los ua vuam lossis siv tshuab, nws cov hlau nplaum yuav nce mus rau qhov chaw uas nws nthuav tawm qhov kev nyiam rau cov hlau nplaum.
Dab tsi yog 18-8 stainless hlau?
18-8 stainless hlau feem ntau yog hais txog 304 stainless hlau, siv dav siv austenitic stainless hlau. Nws lub npe los ntawm nws cov khoom tseem ceeb: 18% chromium thiab 8% npib tsib xee. (UNS S30400) 304 stainless hlau yog dav siv vim nws zoo heev corrosion kuj, mechanical zog, thiab processability. Nws yog cov khoom siv tsis muaj hlau nplaum thiab tuav zoo toughness thiab lub zog ntawm qhov kub thiab txias.
Dab tsi yog 316 stainless hlau?
(UNS S31600) 316 stainless hlau yog qib siab -qib austenitic stainless hlau uas tau txhim kho corrosion kuj vim qhov sib ntxiv ntawm molybdenum. Piv rau 304 stainless hlau, 316 stainless hlau ua tau zoo dua thaum raug chlorides thiab lwm yam tshuaj corrosive. Nws qhov tshwj xeeb muaj pes tsawg leeg ua rau nws tsim nyog rau ntau qhov chaw nyuaj, tshwj xeeb tshaj yog nyob rau hauv marine thiab tshuaj industries.
18-8 Stainless Hlau vs 316 Stainless Hlau
| Feature | 18-8 (Qib 304) Stainless Hlau | 316 Stainless hlau |
| Lub ntsiab lus tseem ceeb | ~ 18% Chromium, ~ 8% Nickel | ~ 16-18% Chromium, ~ 10-14% Nickel,~ 2-3% Molybdenum |
| Chloride Resistance | pluag.Yooj yim rau pitting thiab crevice corrosion nyob rau hauv dej ntsev. | Zoo heev.Molybdenum muab kev tiv thaiv zoo rau chlorides. |
| Tag nrho Corrosion | Zoo rau huab cua dav dav thiab feem ntau raug tshuaj lom neeg. | Zoo heev, tshwj xeeb tshaj yog nyob rau hauv hnyav, corrosive ib puag ncig. |
| Tus nqi Index | 1.0x (Lub hauv paus) | ~1.3x – 1.5x(feem ntau 30-50% kim dua) |
| Cov Npe | 18-8 Stainless, 304 Stainless, Khoom noj khoom haus qib Stainless | Marine-Qib Stainless, Surgical Stainless Steel |
| Hom Siv Case | Kev siv sab hauv tsev, ib puag ncig dej tshiab, thiab lub hom phiaj dav dav. | Marine, ntug hiav txwv dej, chemical processing, thiab siab - daim ntawv thov nqi. |
Kev sib piv ntawm cov qib sib npaug ntawm 18/8 stainless hlau thiab 316 stainless hlau
| Txuj | 18-8 (304 sib npaug) | 316 |
|---|---|---|
| UNS | S30400 | S31600 |
| EN | 1.4301 | 1.4401 / 1.4404 |
| ASTM | 304 | 316 / 316L |
| JIS | SUS 304 | SUS 316 |
| DIN | X5CrNi18-10 | X2CrNiMo17-12-2 |
| GB | 06Cr19Ni10 | 022Cr17Ni12Mo2 |
Mechanical Properties Sib piv ntawm 18/8 Stainless Hlau thiab 316 Stainless Hlau
| Khoom | 18-8 (304) | 316 |
|---|---|---|
| Tensile zog | 515 MPa ua | 515 MPa ua |
| Yield zog | 205 MPa | 205 MPa |
| Elongation | 40% | 40% |
| Hardness | 70–90 IB | 70–90 IB |
Chemical Composition Comparison: Stainless Hlau 316 vs Stainless Hlau 18/8
| Element (% los ntawm qhov hnyav) | Stainless hlau 316 (UNS S31600) | Stainless hlau 18/8 (zoo ib yam li 304, UNS S30400) |
|---|---|---|
| Hlau (Fe) | Tshuav | Tshuav |
| Chromium (Cr) | 16.0 – 18.0 | 18.0 – 20.0 |
| Nickel (Ni) | 10.0 – 14.0 | 8.0 – 10.5 |
| Molybdenum (hli) | 2.0 – 3.0 | – |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 2.00 | Tsawg dua lossis sib npaug li 2.00 |
| Silicon (Si) | Tsawg dua lossis sib npaug li 1.00 | Tsawg dua lossis sib npaug li 1.00 |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.08 | Tsawg dua lossis sib npaug li 0.08 |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua lossis sib npaug li 0.045 |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.030 |
| Nitrogen (N) | Tsawg dua lossis sib npaug li 0.10 | Tsawg dua lossis sib npaug li 0.10 |
Kev Ua Haujlwm Kub Kub: 18-8 Stainless Hlau vs 316
| Kub Resistance | 18-8 (304) | 316 |
|---|---|---|
| Kev pabcuam txuas ntxiv | 870 degree | 870 degree |
| Intermittent Service | 925 degree | 925 degree |
304 stainless hlau: Haum rau siab - qhov kub thiab txias txog li ntawm 870℃. Nyob rau hauv lub sij hawm ntev siab - qhov kub thiab txias, kev ua tau zoo ntawm 304 stainless hlau yuav degrade, xws li txo lub zog thiab toughness.
316 stainless hlau: tuaj yeem tiv taus kub txog 925 degree. Nws qhov siab -kub kuj yog me ntsis zoo dua li ntawm 304 stainless hlau, tab sis thaum siv nyob rau hauv siab - qhov kub thiab txias ib puag ncig, lub durability thiab stability ntawm cov khoom kuj yuav tsum tau xav txog.
Kev ua tau zoo ntawm ob hom stainless hlau zoo sib xws ntawm qhov kub thiab txias, tab sis 316 stainless hlau muaj me ntsis superior oxidation kuj.
18-8 Stainless Hlau vs 316 Stainless Hlau Daim Ntawv Thov
18-8 Stainless Hlau Daim Ntawv Thov
Vim nws zoo heev corrosion kuj, lub zog, thiab machinability, 18-8 stainless hlau yog dav siv nyob rau hauv niaj hnub khoom, xws li:
Kitchenware thiab tableware
Tsev thiab cov khoom siv kho kom zoo nkauj
Cov khoom siv ua zaub mov thiab khaws cia
Automotive qhov chaw
Bolts thiab fasteners
316 Stainless Hlau Daim Ntawv Thov
316 stainless hlau feem ntau siv nyob rau hauv kev xav tau ib puag ncig vim nws zoo heev tiv thaiv ntsev tsuag thiab tshuaj corrosion, xws li:
Cov khoom siv marine
Cov khoom siv tshuaj
Cov cuab yeej kho mob
Seawater desalination khoom
Shipbuilding thiab offshore platforms
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