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Get PriceAccording to the standard classification, refractory bricks with an Al2O3 content of more than 48% are referred to high alumina bricks. As an experienced refractory brick supplier in China, Kerui provides outstanding high alumina refractory bricks for sale.
Al2O3% (≥)
SiC% (≥)
Bulk Density (MPa)
Working Temperature (℃)
ASC Brick (Alumina Silicon Carbide Carbon Brick) combine the excellent properties of High Alumina Bricks and Silicon Carbide Bricks, providing excellent resistance to wear, corrosion and thermal shock. By combining the advantages of alumina, silicon carbide and carbon, ASC bricks provide excellent resistance to molten metal erosion, slag corrosion, thermal shock and mechanical wear. Compared with conventional high alumina bricks, ASC bricks offer improved performance in severe industrial environments where refractory linings are exposed to high-temperature molten materials, strong erosion and chemical attack. ASC bricks are widely used in iron and steel industries, especially for blast furnace iron runners, hot metal handling equipment and other metallurgical applications.
The performance of ASC bricks mainly depends on the optimized combination of three components.
The alumina matrix forms the main structural framework and supports the overall strength of ASC bricks.
The high hardness and chemical stability of SiC help ASC bricks withstand erosion from molten iron, slag and abrasive materials.
The carbon component helps protect the brick structure and extends service life in severe metallurgical conditions.
| Property | Unit | GLT-8 | GLT-10 | GLT-13 | GLT-16A | GLT-16B |
|---|---|---|---|---|---|---|
| Al₂O₃ (min.) | % | 65 | 60 | 58 | 65 | 55 |
| SiC (min.) | % | 8 | 10 | 13 | 16 | 16 |
| Apparent Porosity (max.) | % | 18 | 17 | 17 | 17 | 17 |
| Bulk Density (min.) | g/cm³ | 2.8 | 2.85 | 2.85 | 2.85 | 2.85 |
| Cold Crushing Strength (min.) | MPa | 90 | 100 | 100 | 100 | 100 |
| Refractoriness Under Load (min.) | °C | 1530 | 1550 | 1570 | 1600 | 1580 |
| Note: These values refer to the current standard YB/T 4167-2007; the updated version YB/T 4167-2026 will take effect on November 1, 2026, with similar requirements. | ||||||
Besides traditional carbon-containing ASC bricks, carbon-free and low-carbon alumina silicon carbide bricks have also been developed for advanced steelmaking applications.
Carbon in traditional ASC bricks improves thermal shock resistance and slag resistance. However, in clean steel and ultra-clean steel production, carbon transfer from refractory materials into molten steel may affect steel quality.
Therefore, carbon-free or low-carbon alumina silicon carbide bricks are designed to:
Carbon-free ASC bricks do not simply remove carbon. Instead, advanced material designs are used to maintain refractory performance.
Alternative reinforcing phases may include:
These materials help maintain:
ASC bricks are especially suitable for areas exposed to molten iron and steel.
The combination of alumina and silicon carbide provides:
Carbon and silicon carbide reduce slag penetration and chemical reaction.
ASC bricks can effectively resist:
Carbon and silicon carbide reduce slag penetration and chemical reaction.
ASC bricks can effectively resist:
ASC bricks are widely used in demanding metallurgical applications where refractory linings are exposed to molten iron, steel, slag erosion and repeated thermal cycling.
Typical applications:
Key advantages:
ASC bricks are suitable for cement production areas where refractory linings must withstand high temperatures, clinker abrasion, alkali attack and continuous thermal stress.
Typical applications:
Key advantages:
ASC bricks can be used in non-ferrous metallurgical equipment exposed to high temperatures, molten materials, mechanical wear and chemical corrosion during continuous operation.
Typical applications:
Key advantages:
As a professional ASC brick manufacturer, Kerui offers competitive prices for high-quality alumina silicon carbide carbon bricks. With direct factory production, we can effectively control manufacturing costs and reduce unnecessary intermediate links, helping customers save both time and procurement costs.
The price of ASC bricks depends on factors such as grade, Al₂O₃ and SiC content, carbon content, size, shape and order quantity. For larger projects or long-term cooperation, Kerui can provide more competitive pricing based on specific requirements.
Contact Kerui Refractory today to get the latest ASC brick quotation and technical information.
Kerui operates a modern refractory production facility in Xinmi, Henan, with an annual production capacity of 150,000 tons of shaped refractory products. Advanced batching, pressing and firing equipment supports stable production and consistent quality for ASC bricks and other industrial refractory products.
Quality control is maintained throughout raw material selection, batching, forming, firing and final inspection. Chemical composition, bulk density, strength and dimensional accuracy are carefully checked to ensure that ASC bricks meet the required technical specifications and provide reliable performance in demanding applications.
ASC bricks are only one part of a complete refractory lining system. Kerui also supplies High Alumina Bricks, Silicon Carbide Products and other refractory materials for steel, cement and metallurgical applications, making it easier to select compatible materials for different furnace zones.
Different furnace areas require different levels of wear resistance, corrosion resistance and thermal shock performance. Kerui provides customized ASC brick sizes, shapes and grades according to operating conditions, while our technical team assists customers with product selection and refractory solutions for specific applications.