Loading Port:China Main Port
Payment Terms:TT or L/C
Min Order Qty:5 Tons m.t
Supply Capability:1000 Tons Per Mouth m.t/month
Fused cast AZS firebricks
Fused cast AZS (alumina, zirconia and silica) firebricks are mainly categorized into 33#, 36# and 41# according to different zirconia's contents from 33% to 41%.
Fused cast alumina (α-β Al2O3 and β Al2O3) firebricks are composed of alpha alumina, beta alumina and small amount of glass phase.
Both AZS and alumina firebricks have shown excellent performance in glass furnace construction.
ITEM | AZS33 | AZS36 | AZS41 | α-β Al2O3 | β Al2O3 |
Al2O3≥ % | 50 | 49 | 45 | 94 | 93 |
ZrO2 ≥ % | 32.5 | 35.5 | 40.5 | _ | _ |
SiO2 ≤ % | 15.5 | 13 | 13 | 1.8 | 0.5 |
Na2O + K2O≤ % | 1.3 | 1.35 | 1.3 | 3.7 | 6 |
Bulk Density, (g/cm3) ≥ | 3.75 | 3.85 | 4 | 3.4 | 3.05 |
Apparent Porosity, ≤ % | 1.2 | 1 | 1.2 | 2 | 10 |
C.C.S., Mpa ≥ | 300 | 300 | 300 | 200 | 30 |
Exudating Temperature of Glass Phase, ℃ ≥ | 1400 | 1400 | 1410 | _ | _ |
Bubbling Tendency(1300℃×10h) (%) | 2 | 2 | 2 | 0 1000℃×10h | _ |
Anti-Corrosion Rate of Glass Liquid, 1500℃×36h (mm/24h) | 1.5 | 1.4 | 1.2 | ＜0.3 1350℃×10h | _ |
Feature of Fused cast AZS firebricks
High refractoriness
Excellent resistance to corrosion of molten glass
Application of Fused cast AZS firebricks
Glass furnace
Technical Data
