Dab tsi yog AISI sib npaug ntawm 1.4835?
AISI 253MA cov hlau Stainless (1.4835,
Dab tsi yog 253 ma khoom?
253 ma stainless hlau yog cov roj carbon, cua sov-resistant Austenitic alloy nrog siab zog thiab zoo oxidation tsis kam. Nws tswj hwm nws cov peev txheej ntawm qhov kub siab ua tsaug rau qib kev tswj hwm ntawm microalloys. Kev sib xyaw ntawm lub ntiaj teb tsis tshua muaj feem nrog silicon muab cov oxidai superior tsis kam txog 2000℃f (≈1093 degree).
Cov Khoom Siv thiab Tshuaj Muaj Zog Ntawm Aisi 253ma Stainless Hlau
| Lub ntsiab | Cov ntsiab lus (%) |
|---|---|
| C | 0.05 - 0.12 |
| Yog | 1.40 - 2.50 |
| mn | Tsawg dua los yog sib npaug rau 1.00 |
| Q | Tsawg dua los yog sib npaug rau 0.045 |
| Tau | Tsawg dua los yog sib npaug rau 0.015 |
| N | 0.12 - 0.20 |
| Cr | 20.0 - 22.0 |
| mo | - |
| Tsis yog | 10.0 - 12.0 |
| Nej | - |
Cov Khoom Siv Lub Cev
Magnetism: tsis muaj
Ntom ntom (kg / dm³): 7.8
Thermal conductivity (txog 20 degree): 15 w / m k
Hluav taws xob tiv thaiv hluav taws xob (· mm² / m): 0.85
Cov Khoom Siv Neeg Kho Tshuab
Elastic Txwv RP0.2 (MPA Min.): 310
Tensile Lub Zog RM (MPA): 650-850
Elongation ntawm tawg A80 (% min.): 37
Hwj txwv
Cov khoom siv 1.4835 meel muaj cov kev siv hluav taws zoo thiab tuaj yeem siv nrog txhua cov txheej txheem xws li arc vuam, MIG lossis TIG. Nquag tsis muaj preheating lossis tom qab kev kho cua sov yuav tsum tau ua.
Thaum Tshav Kub Kub Ua
AISI 253 MA / 1.4835 Stainless hlau yog tsim rau cov kev siv kub kub kub. Nws cov cua sov ua kom txog kwv yees li 1150 degrees, thiab nws nthuav tawm zoo tsis kam mus txog 1100 degrees, txawm hais tias qhov no txo tau los ntawm txog 900 degrees.
Qhov sib txawv ntawm 253ma thiab 316
Lub microalloys nrog cerium thiab silicon muab 253 ma zoo oxidation tiv taus txog rau 2000℃f (≈1093℃tsuas yog tiv taus 1600℃f (≈871 degree). Ib qho ntxiv, 253 ma tau pom zoo rau ntu Viii, div 1 rau kev siab siab f (≈899 tsuas yog pom zoo txog 1500℃f (≈816 degree).
Qhov sib txawv ntawm 253ma thiab 310s
253Ma yog kev ua tau zoo ua cua sov, nrog rau cov khoom siv kub thiab cua sov thiab cov pa cua sov thiab hauv cov sulphur-nplua nuj.
Nyob rau hauv sib piv, 310s yog ib qho muaj txiaj ntsig zoo roj carbon alloy, uas tau ua kom zoo tshaj plaws rau nws cov ntsiab lus chromium thiab qis dua rau thermal cycling piv rau 253ma.
