Yog tias koj tab tom nrhiav rau txoj cai stainless hlau rauKev tso pa tawm, hloov cua sov lossis kev lag luam, qhov kev xaiv feem ntau yog nruab nrab304 thiab 409Cov. Ob leeg muab tus nqi zoo, tab sis txawv hauvCorrosion Kuj, Kub Daus thiab NqiCov. Kab lus no sib xyaw304 vs 409Hauv cov tshuaj muaj pes tsawg leeg, cov cuab yeej siv cov khoom siv, kev siv thiab kev lag luam, pab koj xaiv cov alloy txoj cai rau koj qhov project.
Dab tsi yog 304 stainless hlau?
304 yog ib qho alloyAUSTENITICnrogzoo heev corrosionthiab versatility siab. Muaj18% chromium thiab 8% npib tsib xee, yogcheck, tsis sib nqusThiab kev sib tsoo yooj yim. Withstands kub txog870 degreesthiab muaj variants zoo li30Lthiab30HCov.
Dab tsi yog 409 stainless hlau?
409 yog ib qho alloyferritictsim li ntawm90% hlau thiab 10.5-11.75% chromiumCov. PubNruab tshav kub kub thiab corrosion tsis kam, yoghlauthiab pheej yig dua 304. Nws yog feem ntau ua los ntawmKub Rolledthiab tuaj yeem tsim hauvCov ntawv txheeb, coils, tubes, tuav thiab xaimCov.
Tshuaj Muaj Tshuaj
| Lub ntsiab | 304 (uns undat400) | 409 (tsis yog s40900) |
|---|---|---|
| C | Tsawg dua los yog sib npaug rau 0.08% | Tsawg dua los yog sib npaug rau 0.08% |
| mn | Tsawg dua los yog sib npaug rau 2.00% | Tsawg dua los yog sib npaug rau 1.00% |
| Yog | Tsawg dua los yog sib npaug rau 1.00% | Tsawg dua los yog sib npaug rau 1.00% |
| Q | Tsawg dua los yog sib npaug rau 0.045% | Tsawg dua los yog sib npaug rau 0.045% |
| Tau | Tsawg dua los yog sib npaug rau 0.030% | Tsawg dua los yog sib npaug rau 0.030% |
| Cr | 18.0-20.0% | 10.5-11.75% |
| Tsis yog | 8.0-10.5% | Tsawg dua los yog sib npaug rau 0.50% |
| Nej | - | 0.15-0.75% |
| Kev ntseeg | Seem | Seem |
Xaus:304 muaj ntau chromium thiab npib tsib xee, muabzoo dua corrosion tsis kam, thaum 409 sib xyawTitanium, muabntau dua kub tivthiabTus nqi qisCov.
Cov Khoom Siv Neeg Kho Tshuab
| Ntiag tug | 304 | 409 |
|---|---|---|
| Lub zog tensile | Ntau dua los yog sib npaug rau 520 mpa | Ntau dua los yog sib npaug rau 380 MPa |
| Elastic txwv | Ntau dua los yog sib npaug rau 215 MPa | Ntau dua los yog sib npaug rau 170 MPa |
| Elongation | Ntau dua los yog sib npaug rau 40% | Ntau dua los yog sib npaug rau 20% |
| Hardness (HRB) | Tsawg dua los yog sib npaug rau 90 | Tsawg dua los yog sib npaug rau 95 |
| Ceev | 8.00 g / cm³ | 7.70 g / cm³ |
Kev corrosion thiab kub tiv
304: Zoo heev hauv noo, tshuaj lom neeg thiab cov tub rog ib puag ncig, tiv taus oxidation thiab xeb.
409: Tsis kamKev ntsuas thiab oxidation txog 675℃txuas ntxiv thiab 815℃stermittentent, zoo tagnrho rauTxoj kev tso tsheb ncu, cov nkauj muag thiab manifoldsCov.
Tus nqi: 304 kav ntev dua tab sis nqi30-50% Ntautshaj 409.
Muaj zog
304: Yooj yim ua haujlwm kub thiab txias, siab ductility (40-60%), zoo tagnrho rau cov duab nyuaj.
409: Zoo machinility, tab sis nwssiab dua hardness thiab Kujyuav tsum tau ua ntau dua kev ua haujlwm. Ductility hauv kev ua haujlwm txias: 30-40%. Kub forging kub: 1150-1200 degree.
409 daim ntaub ntawv
Txoj Kev Tso Tawm Automotive
Catalysts thiab siftencers
Kev Lag Luam Tubes Thiab Conduits
Kev sib piv ntawm 304 vs 409 kav
| Kev qhia tshwj xeeb | 304 | 409 |
|---|---|---|
| Txoj cai | ASTM A312 / A554 | ASTM A268 / A240 |
| Sab nraud uas hla | 12.7 - 219 hli | 12.7 - 114mm |
| Qhov tuab | 0.5 - 6.0mm | 0.8 - 3.0mm |
| Qho ntev | 6 GP Kev Cai | 6 GP Kev Cai |
| Ua tiav | 2b / ba / daim iav / No.1 | 2b / pickled / polished |
| Hnyav | Du / beveled | Du / beveled |
| Lub cev | Seamless / Welded | Welded / Seamless |
Yog tias koj muaj aQhov project xav tau 304 lossis 409 stainless kav dej, Gnee muaj aCov Khoom Muag Ntxivntawm cov khoom nrov, muaj ob qho tib siseamless raws li weldedCov. Hu rau peb lub Hoobkas kom taucov ncauj lus kom ntxaws tshuaj thiab kuaj dawbCov. Peb muabCov nqi sib tw thiab cov kev pabcuam zoo heevCov.Xa Ntawv: es@gescosteel.com
