Chrome corundum castable is a high-performance amorphous refractory material composed of corundum and chromium.
It has high melting point, high hardness, high stability and excellent slag resistance and wear resistance.
In chrome corundum castable, corundum can provide additional refractory performance and strength, complementing chrome corundum to further improve the overall performance of the castable.
(1) Excellent high temperature resistance
(2) High strength
(3) Good wear resistance
(4) Strong corrosion resistance
(5) Good thermal shock stability
Metallurgical industry, petrochemical industry, building materials industry, power industry.
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Items |
Chrome Corundum Castable |
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Content |
Al2O3 (%） |
≥80 |
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Fe2O3（%） |
≤0.6 |
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Cr2O3(%) |
≥6 |
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Bulk Density（g/cm³) |
≥3.1 |
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Compressive Strength/MPa |
110℃×24h |
≥90 |
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1100℃×3h |
≥110 |
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Bending Strength/MPa |
110℃×24h |
≥12 |
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1100℃×3h |
≥13 |
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Linear Change after Heating/% |
1100℃×24h |
±0.3 |
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Highland Refractory’s Chrome Corundum Castable is a high-grade refractory castable designed for extreme high-temperature industrial applications where mechanical strength, chemical resistance, and thermal stability are critical. Manufactured from high-purity corundum aggregates, chromium oxide, and optimized cementitious binders, this castable provides superior performance under severe thermal and chemical conditions, outperforming conventional high-alumina castables in durability and service life.
This castable is widely used in steelmaking furnaces, cement kilns, glass melting units, incinerators, and other industrial furnaces exposed to high wear, slag erosion, and thermal shock. By carefully controlling the particle size distribution, chromium oxide content, and binder ratio, Highland Refractory ensures consistent product quality, optimal installation properties, and long-term furnace reliability.
Maximum service temperature: 1650–1700°C
Superior refractoriness under load (RUL)
High thermal shock resistance, minimizing cracking and spalling during rapid heating and cooling cycles
Cold crushing strength after drying and firing: ≥70–85 MPa
Excellent abrasion resistance for long-term exposure to mechanical wear
Maintains structural integrity in high-load furnace zones
Resistant to acidic, neutral, and basic slags
Minimizes erosion and chemical attack in steel ladles, cement kiln burners, and incinerators
Improves furnace reliability and reduces lining maintenance frequency
Chromium oxide and SiC content improve heat transfer efficiency
Optimizes furnace energy consumption and operational efficiency
Dense, low-porosity structure prevents slag penetration
Extends lining campaign life, reducing repair costs and downtime
Suitable for both continuous and batch processes
Can be applied using vibration, ramming, or gunning techniques
Optimized rheology ensures smooth placement, minimal segregation, and dense lining formation
Technical guidance available for site installation
High Refractoriness and Strength – With a combination of corundum and chromium oxide, the castable maintains dimensional stability under high-temperature load conditions.
Superior Slag and Corrosion Resistance – Chromium oxide content provides chemical stability, resisting erosion from molten metal, slag, and aggressive chemical environments.
Thermal Shock Resistance – The castable can withstand frequent temperature fluctuations without cracking or spalling.
Energy Efficiency – High thermal conductivity reduces energy losses in furnaces and improves heat transfer.
Durability and Longevity – Reduced porosity ensures longer furnace lining life and minimal maintenance.
Ease of Application – Optimized mix design supports vibration, ramming, or gunning methods, improving installation efficiency.
Highland Chrome Corundum Castable is designed for high-temperature, high-wear, and chemically aggressive industrial environments:
Ladle linings: Protects from molten steel and slag erosion
Tundish impact pads: High-strength lining for critical flow zones
RH, VD, and EAF hot spots: Resists high thermal and chemical stress
Kiln burner nozzles: Withstands slag erosion and high temperature
Preheater ducts & transition zones: High wear resistance
Tertiary air ducts: Reduces maintenance in abrasive environments
Glass melting furnace linings: Resists chemical attack and thermal cycling
Regenerators & forehearths: Maintains dimensional stability
Tin bath lining: Protects against high-temperature corrosion
Waste-to-energy incinerators: Handles slag and ash corrosion
Gasifiers & chemical reactors: High-temperature chemical resistance
Boilers and combustion chambers: Enhances energy efficiency and operational reliability
Reheating and heat treatment furnaces: Protects critical zones
Aluminum and non-ferrous metal furnaces: Resists thermal and mechanical stress
Continuous operation kilns: Low porosity reduces lining failure
Proper installation ensures optimal performance and extended service life:
Preparation & Mixing: Use clean water and follow the technical datasheet for correct water-to-powder ratio.
Placement Methods: Suitable for vibration, ramming, or gunning, depending on furnace geometry and operational requirements.
Curing & Drying: Follow controlled drying schedules to avoid cracking. Gradual heating is recommended before firing.
Firing: Slowly heat to operational temperature to ensure dimensional stability.
Technical Support: Highland Refractory engineers provide on-site guidance, installation supervision, and troubleshooting support.
📩 Installation manuals and drying/firing curves are available upon request.
It is ideal for high-temperature, high-wear, and chemically aggressive zones in steel, cement, glass, and industrial furnaces.
Chrome Corundum Castable contains chromium oxide, which enhances slag and chemical resistance, improves thermal stability, and extends service life compared to standard corundum castable.
Yes. Highland Refractory can adjust chromium content, particle size distribution, and binder ratio to meet specific furnace conditions.
It can be installed by vibration, ramming, or gunning, depending on furnace shape and operational needs. Controlled drying and firing schedules are advised.
Store in dry, cool, and ventilated areas
Avoid exposure to moisture and sunlight
Use within recommended shelf life to maintain performance
25 kg moisture-proof bags
Jumbo bags for large projects
Palletized export packaging for international shipment
Steel Ladle Lining – Indonesia
Used Highland Chrome Corundum Castable for ladle bottom and sidewalls.
Result: 30% longer lining life, reduced downtime, improved heat retention.
Cement Kiln Burner – Turkey
Replaced conventional high-alumina lining with Chrome Corundum Castable.
Result: Excellent chemical resistance, maintained structural integrity after 12 months.
Glass Melting Furnace – Mexico
Applied castable in regenerators and forehearth zones.
Result: Reduced maintenance cycles, improved thermal stability, no spalling.
Over 30 Years of Industrial Refractory Expertise – trusted by clients worldwide
ISO-Certified Production – strict quality control for raw materials and finished products
Custom Formulations – optimized for furnace type, temperature, and slag chemistry
Technical Support & Engineering Assistance – from installation to troubleshooting
Global Export Standards – reliable logistics for international delivery
Competitive Pricing – high-quality products at favorable costs compared to EU & US brands
Highland Refractory provides not just materials, but comprehensive solutions to optimize furnace performance and extend lining life.
Looking for a reliable Chrome Corundum Castable supplier?
📧 Contact Highland Refractory today to receive:
Complete technical datasheet
Customized solution recommendations
Competitive quotation
Fast international delivery support
👉 Provide furnace type, operating temperature, and slag chemistry — our engineers will recommend the most suitable solution.
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