Highland Refractory’s Silicon Carbide (SiC) Refractory Castable is a premium-grade, high-performance refractory material engineered for extreme high-temperature applications. Manufactured from high-purity silicon carbide aggregates combined with carefully selected binders and additives, this castable delivers exceptional thermal conductivity, superior mechanical strength, and outstanding chemical resistance.
Our SiC Refractory Castable is designed to withstand severe thermal cycles, aggressive slag attack, and abrasive environments, making it the ideal solution for steelmaking ladles, cement kilns, incinerators, and various high-temperature industrial furnaces. Highland Refractory ensures every batch meets strict quality standards, providing consistent performance and long service life.
(1) High wear resistance
(2) Good thermal conductivity
(3) High temperature resistance
(4) Strong corrosion resistance
(5) Good oxidation resistance
Metallurgical industry, petrochemical industry, building materials industry, power industry.
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Product name |
Silicon carbide anti-skinning series castables |
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|
Brand |
SA-65 |
SA-75 |
|
|
Maximum operating temperature |
℃ |
1650℃ |
1750℃ |
|
Chemical composition |
AL2O3 |
≥65% |
≥75% |
|
SIC |
≥15 |
≥20 |
|
|
Cr |
≥8 |
≥12 |
|
|
Volume density |
g/cm3 |
2.4 |
2.6 |
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Compressive strength MPa |
1100℃×3h |
80 |
95 |
|
1100℃×24h |
100 |
110 |
|
|
Line change after calcination % |
1100℃×3h |
±0.4 |
±0.3 |
|
Reference water consumption for construction |
% |
6-7 |
5-6 |
Highland Refractory’s Silicon Carbide (SiC) Refractory Castable is a premium-grade, high-performance refractory material engineered for extreme high-temperature applications. Manufactured from high-purity silicon carbide aggregates combined with carefully selected binders and additives, this castable delivers exceptional thermal conductivity, superior mechanical strength, and outstanding chemical resistance.
Our SiC Refractory Castable is designed to withstand severe thermal cycles, aggressive slag attack, and abrasive environments, making it the ideal solution for steelmaking ladles, cement kilns, incinerators, and various high-temperature industrial furnaces. Highland Refractory ensures every batch meets strict quality standards, providing consistent performance and long service life.
Compared to conventional high-alumina castables, our Silicon Carbide Refractory Castable offers:
Higher refractoriness under load
Better thermal shock and abrasion resistance
Improved furnace energy efficiency due to higher thermal conductivity
Extended campaign life with reduced maintenance
Maximum service temperature up to 1600–1700°C depending on formulation
Excellent refractoriness under load (RUL) for critical furnace zones
Superior thermal shock resistance minimizes cracking and spalling during rapid temperature changes
High cold crushing strength (≥70–80 MPa) after drying and firing
Excellent wear resistance for long-term exposure to mechanical and abrasive forces
Resistant to neutral and slightly acidic slags
Effective protection against chemical corrosion in steel ladles, cement kiln burners, and incinerator walls
Minimizes lining degradation and improves furnace reliability
SiC aggregate provides efficient heat transfer, improving furnace thermal efficiency
Reduces energy consumption in high-temperature operations
Dense, low-porosity structure prevents slag penetration and erosion
Extends furnace lining life, lowering downtime and repair costs
Suitable for both continuous and batch processes
Our Silicon Carbide Refractory Castable is widely used across multiple high-temperature industries.
Ladle working linings and impact pads
Tundish nozzle and overflow areas
RH, VD, and electric arc furnace hot spots
Kiln burner nozzles and preheater ducts
Transition zones exposed to high abrasion and chemical attack
Tertiary air ducts and high-temperature areas
Waste-to-energy incinerators and gasifiers
High-temperature chemical reactors
Boiler lining and combustion chambers
Reheating furnaces, heat treatment furnaces, and aluminum melting units
Zones requiring high thermal conductivity and wear resistance
Continuous operation areas where downtime is costly
Proper installation ensures optimal performance:
Mixing – Use clean water and proper mixing ratio according to technical datasheet.
Placement – Suitable for vibration, ramming, or gunning, depending on furnace geometry.
Curing & Drying – Follow controlled drying schedules to avoid cracking.
Firing – Gradually heat to operating temperature; avoid rapid temperature spikes.
Technical Support – Highland Refractory engineers provide on-site guidance and process optimization.
📩 Request installation manuals and technical datasheets for step-by-step instructions.
With over 30 years of experience, Highland Refractory is a trusted supplier for global industrial customers:
ISO-Certified Production – strict quality control for raw materials and finished products
Custom Formulations – tailored to your furnace type, temperature, and slag chemistry
Technical Expertise – engineering support for lining design and installation
Global Export Standards – packaging and logistics for safe international delivery
Competitive Pricing – high-quality products at favorable costs compared to European and US suppliers
We provide not just refractory materials but comprehensive solutions to maximize furnace efficiency and lifespan.
It is ideal for high-temperature zones subject to thermal shock, abrasion, and chemical attack, including steel ladles, cement kiln burners, incinerators, and industrial furnaces.
SiC castables provide higher thermal conductivity, superior wear resistance, and better chemical stability, extending lining life compared to high-alumina alternatives.
Yes. Our engineers can modify the SiC content, particle size, and binder ratio to match specific furnace conditions and operational requirements.
25 kg moisture-proof bags
Jumbo bags for bulk projects
Palletized export packaging for long-distance shipping
Keep in a dry, cool environment
Avoid direct sunlight or water contact
Use within the recommended shelf life to maintain performance
Project: Steel Ladle Lining – Indonesia
Customer used Highland SiC Castable for ladle bottom and sidewalls
Result: Reduced lining replacement frequency by 30%, improved thermal efficiency
Project: Cement Kiln Burner Nozzle – Turkey
Our castable replaced conventional high-alumina lining
Result: Excellent chemical resistance, no premature wear after 12 months of operation
Project: Waste Incinerator – Mexico
Applied in high-temperature waste-to-energy furnace
Result: Reduced downtime, improved heat recovery, high mechanical stability
Looking for a high-performance Silicon Carbide Refractory Castable supplier?
📧 Contact Highland Refractory today to receive:
Full technical datasheet
Customized formulation recommendations
Competitive quotation
Fast international delivery support
👉 Provide your furnace type, working temperature, and operating conditions — our engineers will recommend the most suitable solution.
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