Xintai Refractory’s Chrome Corundum Bricks are premium high-grade refractory materials designed to withstand extreme temperatures, chemical corrosion, and slag erosion. Made from high-purity corundum (Al₂O₃) and chromium oxide (Cr₂O₃), these bricks form a durable Al₂O₃–Cr₂O₃ solid solution after high-temperature firing, providing exceptional hardness, thermal stability, and wear resistance. Their superior properties make them ideal linings for incinerators, gasifiers, glass kilns, and metallurgical furnaces. With over 20 years of manufacturing experience, Xintai Refractory has supplied high-performance refractory solutions to more than 50 clients worldwide, offering both standard and fully customized bricks.
Technical Specifications
| Item | GGZ-30 | GGZ-20 | GGZ-12 | GGZ-5 |
|---|---|---|---|---|
| Cr₂O₃ (%) | ≥30 | 20 | 12 | 5 |
| Fe₂O₃ (%) | ≤0.3 | 0.3 | 0.3 | 0.3 |
| Al₂O₃ (%) | ≥68 | 76 | 80 | 85 |
| Apparent Porosity (%) | ≤18 | 18 | 18 | 18 |
| Bulk Density (g/cm³) | ≥3.5 | 3.4 | 3.2 | 3.1 |
| Cold Crushing Strength (MPa) | ≥100 | 100 | 100 | 100 |
Key Features
High Refractoriness: Can withstand temperatures up to 1700℃ under load.
Excellent Slag Resistance: Cr₂O₃ forms a protective solid solution, preventing penetration of molten slags.
Thermal Shock Resistance: Continuous Al₂O₃–Cr₂O₃ solid solution improves hardness and reduces spalling.
Chemical Stability: Resistant to acid and alkali solutions.
Oxidation Resistance: Environmentally friendly, durable, and reusable.
Wear Resistance: Strong performance in high-friction areas such as steel furnace skid rails.
Typical Applications
Chrome Corundum Bricks are widely used across multiple industries:
Glass Industry: Glass kiln linings, glass flow cover bricks, melting tank components.
Steel Industry: Hot blast furnace lining, sliding tables, ladles, tapping platforms.
Non-Ferrous Metal Industry: Melting furnaces, converters, anode furnaces.
Petrochemical & Waste Treatment: Thermal reactors, incinerators, gasifiers.
Ceramic & Chemical Industry: High-temperature furnaces and reactors.
Production Details
Raw Materials: High-purity α-Al₂O₃, Cr₂O₃, chromium corundum clinker fine powder, and additives.
Manufacturing Process: Mixing → Shaping → Drying → Sintering in high-temperature shuttle kiln.
Quality Control: Every brick batch undergoes strict lab testing for chemical composition, density, porosity, refractoriness, and crushing strength. ISO, CE, and SGS certificates support product quality.
Customization: Technicians available to create bricks tailored to your specifications, including size, Cr₂O₃ content, and shape.
Packing and Shipping Details
Packing: Stacked on pallets, wrapped with protective materials to prevent damage.
Shipping Time: 7–35 working days depending on order size and destination.
Global Shipping: Available worldwide with full export documentation.
Samples: Free samples available upon request for evaluation.
Frequently Asked Questions (FAQ)
Q1: What is the maximum temperature Chrome Corundum Bricks can withstand?
They can resist temperatures up to 1700℃ under load due to the Al₂O₃–Cr₂O₃ solid solution.
Q2: Can the bricks be customized?
Yes. Xintai Refractory offers custom shapes, sizes, and Cr₂O₃ content according to client requirements.
Q3. Are these bricks resistant to chemical corrosion?
Yes. They resist acids, alkalis, and slag erosion, making them suitable for harsh industrial environments.
Q4: What industries commonly use Chrome Corundum Bricks?
Steel, glass, non-ferrous metal, petrochemical, ceramic, and chemical industries.
Q5: How do I place an order or request a sample?
Contact Xintai Refractory via email or inquiry form. Free samples and turnkey service are available.
