Alumina Silicon Carbide Bricks are high-performance refractory products made from a combination of premium Al2O3 and SiC, offering an ideal balance of abrasion resistance, thermal stability, and chemical durability. These bricks are widely used in high-wear zones of furnaces, such as tapholes, slag lines, and metal-contact zones.
Manufactured using advanced pressing or casting methods and fired at high temperatures, these bricks feature low porosity and high strength, making them suitable for steelmaking, non-ferrous metallurgy, glass, and cement industries.

Key Feature of Alumina Silicon Carbon Bricks:
•Excellent resistance to slag & metal penetration
•Outstanding thermal shock resistance
•High mechanical strength at elevated temperatures
•Low porosity and high density
•Customizable shape, size, and composition
Typical Applications of Alumina Silicon Carbon Bricks:
•Steel ladle working lining and slag line
•Taphole area of blast furnace or BOF
•Glass furnace sidewall & forehearth
•Transition and burning zones of rotary kilns
•Non-ferrous metal refining furnaces
Parameters of Alumina Silicon Carbon Bricks:
| Item | SMA-1680T | GM-1680 | GM-1650 | GM-1550 |
| Al2O3(%)≥ | 68 | 65 | 65 | 60 |
| SiO2+SiC(%)≥ | 30 | 30 | 30 | 28 |
| Bulk Density(g/cm3)≥ | 2.7 | 2.65 | 2.6 | 2.5 |
| Normal temperature compressive strength(MPa)≥ | 90 | 90 | 85 | 80 |
| Load softening temperature(T0.6℃)≥ | 1680 | 1680 | 1650 | 1550 |
| Thermal shock (1100℃ water cooling). times | 15 | 15 | 10 | 10 |
| Thermal conductivity (1100℃) (W.mk) ≤ | 1.7 | 2 | 2.3 | 2.3 |
| Abrasion resistance coefficient (cc) | 8 | 7.8 | 8.2 | 8.5 |




Q1: What are the advantages of alumina silicon carbide bricks over traditional refractory bricks?
A1: Al2O3-SiC bricks offer superior thermal shock resistance, slag corrosion resistance, and mechanical strength at high temperatures compared to traditional fireclay or high-alumina bricks. They are ideal for slag lines, tapholes, and metal-contact zones in harsh environments.
Q2: What size and shape options are available?
A2: Standard sizes (230×114×65 mm) are available, and we offer custom shapes such as:
•Tap-hole blocks
•Slag-line tiles
•Wedge-shaped bricks
•Large-format cast blocks
We can also produce based on your technical drawings or lining design.
Q3: What kind of customization is supported?
A3: We support customization of:
•Chemical composition (adjust Al2O3 and SiC ratios)
•Shape and dimensions
•Anti-oxidation treatments or graphite addition
•Installation compatibility (tongue-and-groove, beveled edges, anchoring slots)
Q4: Do you provide technical support or refractory lining design?
A4: Yes. Our engineers provide:
•Lining design consultations
•Material selection support
•Installation guidelines
•On-site supervision (for bulk projects)
Q5: Can I request product samples for testing?
A5: Yes. We offer free small samples for qualified industrial buyers. Please provide usage details so we can recommend the best grade.
Zhengzhou Zhongkeda Refractory Materials Co., Ltd

