Home > Products > Refractory Brick > Acid Proof Brick
Size:230*114*65mm
Capacity:1000 tons per month
Composition:Al2O3+SiO2
Raw Material:Quartz, feldspar, clay
Acid Resistance:At least 98%
Package:Export wooden pallets and polyboard
Product Introduction
Fire-resistant and acid-resistant bricks are the main refractory materials used in acid regeneration roasting furnaces such as cold-rolled sheets and silicon steel wires in the steel-making system. Their performance directly affect the service life and economic benefits of the acid regeneration furnace.
Features
1. Anti-corrosion by acids, alkalis, oxidants and solvents. 2. Good resistance to mechanical and physical shocks. 3. Cost-efficient.
Application
Fire-resistant and acid-resistant bricks are mainly used in acid regeneration roasting furnaces ,coke oven, and other kilns for smelting industry.
Technical Data
| Item | Fire-resistant and Acid-resistant Brick | |||
| Al-28 | Al-30 | Al-35 | Al-40 | |
| Al2O3(%) | ≥28 | ≥30 | ≥35 | ≥40 |
| Bulk Density (g/cm3) | 2.0-2.1 | 2.05-2.15 | 2.10-2.15 | 2.15-2.25 |
| Cold Crushing Strength (MPa) | ≥30 | ≥30 | ≥35 | ≥35 |
| Refractoriness Under Load (0.2MPa) ℃ | 1300 | 1350 | 1370 | 1420 |
| Refractoriness (℃) | ≥1700 | ≥1700 | ≥1770 | ≥1790 |
| Acid Resistance (%) | ≥98 | ≥98 | ≥98 | ≥98 |
| Apparent Porosity (%) | ≤20 | ≤20 | ≤21 | ≤21 |
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