1.4828 Stainless hlau yog dab tsi?
Apr 03, 2026
Tso lus
1.4828 stainless hlau, feem ntau hu ua 309 los yog UNS S30900, yog siab - kub austenitic stainless hlau tsim rau cov ntawv thov uas yuav tsum tau oxidation zoo heev thiab zoo creep zog ntawm qhov kub thiab txias. Nrog nws cov ntsiab lus chromium thiab npib tsib xee ntau dua piv rau 304, nws muaj kev tiv thaiv zoo tshaj rau kev ntsuas thiab oxidation hauv kev pabcuam txuas mus txog 1000 degree. Nws yog dav siv nyob rau hauv lub cub tawg Cheebtsam, cov khoom siv kho cua sov, thiab siab -kub muaj txheej txheem uas tsis kam mus rau thermal cycling thiab oxidation tseem ceeb heev.
Qhov siab - kub austenitic qib no yog tus qauv raws li cov txheej txheem thoob ntiaj teb tseem ceeb.
| Txuj | Qib sib npaug |
|---|---|
| EN (Tebchaws Europe) | 1.4828 |
| ASTM / AISI (USA) | 309, UAS 30900 |
| JIS (Nyiv) | SUS 309 |
| Lub Npe | 309 |
Nws cov ntsiab lus chromium thiab npib tsib xee siab dua muab kev ua tau zoo heev -kub oxidation kuj.
| Lub ntsiab | C | Si | Mn | P | S | Cr | Ni |
|---|---|---|---|---|---|---|---|
| Cov ntsiab lus (%) | Tsawg dua los yog sib npaug li 0.20 | Tsawg dua los yog sib npaug rau 1.0 | Tsawg dua lossis sib npaug li 2.0 | Tsawg dua lossis sib npaug li 0.045 | Tsawg dua los yog sib npaug li 0.03 | 22.0 - 24.0 | 12.0 - 15.0 |
Nws tuav cov khoom zoo txhua yam ntawm ob chav tsev thiab qhov kub siab.
| Khoom | Yield zog (Rp0.2) | Tensile zog (Rm) | Elongation (A) | Hardness (HB) |
|---|---|---|---|---|
| Tus nqi zoo (Room Temp) | Ntau dua lossis sib npaug li 205 MPa | 500 - 750 MPa | Ntau dua lossis sib npaug li 40% | Tsawg dua lossis sib npaug li 215 |
Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4828 / 309
Zoo heev High -Temperature Oxidation Resistance:Tsim cov txheej txheem chromium oxide ruaj khov uas tiv thaiv kev ntsuas thiab oxidation hauv kev pabcuam txuas mus txog 1000℃(1830℃F) thiab kev pabcuam cuam tshuam txog 980℃(1800℃F).
Zoo Creep Strength:Ua kom muaj kev ncaj ncees nyob rau hauv cov khoom siv thauj khoom ntawm qhov kub siab, haum rau kev thauj khoom -cov kabmob siab - qhov kub thiab txias.
Zoo Thermal Fatigue Resistance:Ua tau zoo nyob rau hauv cyclic cua sov thiab txias txias vim nws ruaj khov austenitic qauv.
Resistance rau Sulfur Atmospheres:Tuav tau zoo dua li ntau lwm cov hlau tsis muaj steel hauv ib puag ncig uas muaj cov tshuaj sulfur sib xyaw.
Cov ntawv thov tseem ceeb:
Thaum tshav kub kub kho Furnaces:Radiant tubes, retorts, baskets, furnace linings, thiab annealing npog.
Kev ua tshuaj lom neeg:High -kub reactors, reactor tubes, thiab cov khoom siv pyrolysis.
Kev tsim hluav taws xob:Boiler Cheebtsam, kev txhawb nqa superheater, thiab cov cua sov rov qab.
Vuam Filler Hlau:Dav siv los ua ib qho overlay lossis muab tub lim rau koom nrog cov hlau sib txawv.
Kev lag luam cement:Preheater cyclones thiab ducting.
Kev lag luam ceramic:Kiln rooj tog thiab tsheb saum.
309 (1.4828) piv rau 309S (1.4833) thiab 310 (1.4841/1.4845) li cas?
309 muaj cov ntsiab lus carbon ntau dua (tsawg dua lossis sib npaug li 0.20%) piv rau 309S (tsawg dua lossis sib npaug li 0.08%), muab lub zog zoo dua ntawm qhov kub siab tab sis qis dua weldability. 309S yog qhov qis- carbon version nyiam rau cov ntawv thov welded qhov twg muaj kev txhawj xeeb. Piv rau 310 (25% Cr, 20% Ni), 309 muaj cov ntsiab lus chromium thiab npib tsib xee qis, muab nws qis tshaj qhov kev pabcuam kub (1000℃vs . 1150℃) tab sis kev lag luam zoo dua. 309 feem ntau xaiv rau cov ntawv thov uas 310 dhau los - qhia, lossis qhov chaw sib xyaw ua haujlwm siab thiab - tus nqi- yuav tsum muaj kev ua tau zoo.
Dab tsi yog qhov kev txiav txim siab vuam rau 309?
309 muaj weldability zoo, tab sis yuav tsum tau saib xyuas vim nws cov ntsiab lus carbon ntau dua. Cov ntsiab lus tseem ceeb suav nrog:
309S (tsawg carbon) yog qhov zoo dua rau cov ntawv thov welded kom tsis txhob hnov qab
Muab cov hlau sib txuam (ER309 rau TIG / MIG, E309-16 rau SMAW) raug pom zoo
Rau vuam sib txawv ntawm cov hlau (cov hlau tsis muaj steel), 309 muab tub lim yog tus qauv xaiv
Pom zoo cua sov input: 0.5-2.0 kJ / mm
Interpass kub yuav tsum khaws cia qis dua 150 degree
Tshaj tawm -welding tu thiab pickling / passivation yog pom zoo rau qhov zoo tshaj plaws corrosion kuj
Qhov ntsuas kub li cas yog 309 haum rau?
309 yog tsim rau kev pabcuam txuas mus txog 1000℃(1830℃F) thiab kev pabcuam cuam tshuam txog 980℃(1800℃F). Nws tuav tau zoo oxidation tsis kam nyob rau hauv no ntau yam, ua rau nws haum rau lub cub tawg Cheebtsam, cov khoom siv kho cua sov, thiab siab -kub txheej txheem kev siv. Rau cov ntawv thov uas yuav tsum tau muaj peev xwm kub siab dua (siab dua 1000 degree), 310 (1.4845) nrog nws cov ntsiab lus chromium thiab npib tsib xee siab dua tau pom zoo. 309 yuav tsum tsis txhob siv rau hauv cov huab cua tsis zoo lossis qhov chaw muaj halogens, vim tias cov no tuaj yeem tawm tsam cov txheej txheem oxide tiv thaiv.
Nrhiav kev ntseeg siab ntawm 1.4828 / 309 Stainless Hlau?
GNEE Steel muab cov khoom siv siab - kub qib 309 (1.4828) stainless hlau nyob rau hauv phaj, ntawv, bar, yeeb nkab, thiab cov ntaub ntawv haum rau kev thov rau qhov cub thiab cov txheej txheem siv. Peb muab cov ntaub ntawv pov thawj tag nrho (EN 10204 3.1) thiab kev txhawb nqa suav nrog kev txiav, kev tsim, thiab kev pabcuam vuam. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.
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