Products
Chrome Corundum Brick
• Cr₂O₃ Content: ≥5–15%
• Al₂O₃ Content: ≥60–85%
• Bulk Density: ≥2.90–3.35 g/cm³
• Apparent Porosity: ≤16–18%
• Cold Crushing Strength: ≥90–130 MPa
• Function: High Strength & Wear Resistance & Corrosion Resistance & High-Temperature Stability
Product Introduction
Chrome Corundum Brick is a high-performance refractory brick manufactured from high-purity alpha alumina, chrome corundum clinker, chromium oxide powder and selected binders.
During production, the raw materials are mixed, shaped and fired at high temperature to form a dense refractory structure. Grouting and casting methods can also be used to manufacture complex or special-shaped products.
The main mineral phase is an Al₂O₃-Cr₂O₃ solid solution. Depending on the formulation, the brick may also contain a small amount of composite spinel. The chromium oxide content can be adjusted according to the required wear resistance, corrosion resistance and application conditions.
Compared with conventional corundum brick, Chrome Corundum Brick provides improved resistance to high-temperature wear, slag penetration, molten material corrosion and hot gas scouring. It is suitable for severe furnace areas requiring both high mechanical strength and chemical stability.
Feature:
- High alumina and chromium oxide content.
- High cold crushing strength.
- High refractoriness under load.
- Good high-temperature stability.
- Good wear resistance.
- Good abrasion resistance.
- Good resistance to slag penetration.
- Good resistance to molten glass corrosion.
- Good resistance to hot gas scouring.
- Dense refractory structure.
- Good chemical stability.
- Suitable for severe industrial furnace conditions.
- Custom chromium oxide content available.
- Standard and special shapes available.
Chrome Corundum Brick is mainly used as a working lining in industrial furnaces exposed to high temperatures, abrasion, slag erosion and chemical corrosion.
Typical applications include:
- Petrochemical slag oil gasifiers
- Coal-water slurry gasifiers
- Steel heating furnaces
- Steel tapping areas
- Steel rolling furnace slide rails
- Furnace skid rails
- Tapping platforms
- Hot metal pretreatment equipment
- Waste incinerators
- Glass furnaces
- Glass furnace flow holes
- Glass furnace cover plates
- Industrial furnace grooves
- High-temperature wear-resistant furnace linings
- Other severe refractory working areas
The reference manufacturer lists petrochemical gasifiers, steel furnace tapping areas, rolling-furnace slide rails, glass kilns, hot-metal pretreatment equipment, waste incinerators and coal-water slurry gasifiers among the main applications.
The appropriate grade should be selected according to operating temperature, furnace atmosphere, slag composition, abrasion intensity, mechanical load and contact material.
Technical Data:
| ltem | 15 Chrome-Corundum Brick | 10 Chrome-Corundum Brick | 5 Chrome-Corundum Brick | Wear Resistance Skid Rail | Zr-Cr-corundum Brick |
| Cr2O3, % | ≥15 | ≥10 | ≥5 | ≥5 | ≥8 |
| AL2O3, % | ≥75 | ≥80 | ≥85 | ≥85 | ≥60 |
| ZrO2, % | ≥15 | ||||
| Apparent porosity, % | ≤18 | ≤18 | ≤18 | ≤16 | ≤18 |
| Bulk density, g/cm³ | ≥3.35 | ≥3.3 | ≥3.2 | ≥3.2 | ≥2.9 |
| Cold crushing strength, MPa | ≥120 | ≥120 | ≥120 | ≥130 | ≥90 |
| Refractorines under load, 0.2MPa,0.6% | ≥1700 | ≥1700 | ≥1700 | ≥1700 | ≥1700 |
The technical values above are based on the reference manufacturer’s published product table.
The values are typical reference data. Final specifications may vary according to raw material purity, chromium oxide content, forming method, firing process, product dimensions and testing standards.
The reference table does not provide thermal conductivity, thermal expansion or permanent linear change data. These parameters should not be added unless they are available in your own technical data sheet or laboratory report.
