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Corundum Castable
- Al2O3: ≥90-95%
- SiO2: 5-10%
- Bulk Density (g/cm³): 2.8-3.2
- Cold Crushing Strength（MPa）: 95
- Max Service Temperature（℃）: 1790
- Certification: ISO9001/ISO14001/ISO45001/ISO50001
- Samples: Provide you free samples for testing
Customized Corundum Refractory Castable/Concrete Manufacturer
According to your actual project application, we can customize high-quality refractory castables for your high-temperature furnace project.
Why choose Jianhong Refractory?
If you’re in search of the finest Corundum Castable for optimal solutions to serve your clients, look no further than Jian Hong Refractory. Our meticulous practices ensure the delivery of top-tier Corundum Castable.
Low MOQ
Jian Hong Refractory offers flexible production, accommodating orders from 1 to 10,0000 units on demand.
Fast delivery
Our mature production line facilitates 24/7 operations, enabling rapid turnaround and prompt delivery.
Competitive Price
We guarantee the most competitive prices while maintaining the highest quality standards compared to other suppliers.
Expert Production
Equipped with three modern production lines, our facilities ensure consistent quality and timely delivery, setting us apart from others in the industry.
Satisfaction Assurance
With a focus on refractory product quality and clear communication, we ensure that every step is streamlined for the ease and satisfaction of our clients.
Comprehensive Product Range
Beyond high alumina bricks, our portfolio includes castables, insulation bricks, ceramic fiber products, and refractory raw materials, providing a one-stop solution unlike competitors with limited ranges.
1 Refractory Raw Materials
2 Crushing and Grinding
3 Screening and Mixing
4 Formulation and Batching
5 Molding and Shaping
6 Drying
7 Pre-Firing Inspection
8 Firing in Kiln
9 Firing Completed
10 Final Quality Inspection
11 Packaging
12 Transport and Delivery
The Ultimate Buyer’s Guide: How to Purchase Corundum Castable
Are you in the market for Corundum Castable ? Look no further.
This all-inclusive buyer’s guide provides you with crucial insights into Corundum Castable, which find applications in metallurgical industry, power industry, ceramic industry, chemical industry and other heat treatment high temperature industries. Whether you’re contemplating importing them for your projects or planning local distribution, this guide furnishes invaluable information to guide your decision-making process.
Chapter 1
What is Corundum Castable?
A high-alumina refractory material designed for extreme thermal environments, trusted in global industrial applications.
Corundum castable is a premium refractory composite primarily composed of corundum (alumina, Al₂O₃) aggregates and a binder system. It combines high strength, heat resistance, and versatility, making it a cornerstone in industries requiring materials to withstand temperatures exceeding 1650℃. As a key player in refractory solutions, it bridges durability and performance for high-heat operations.
Chapter 2
Features of Corundum Castable
Engineered to outperform in harsh conditions, with attributes tailored for industrial reliability.
- Exceptional Heat Resistance:
Sustains stability at 1700–1800°C, ideal for furnaces and kilns.With stands mechanical wear, reducing frequent replacements. - Strong Chemical Inertness:
Resists corrosion from molten metals, acids, and alkalis. - Easy Moldability:
Pourable or trowelable for precise shaping in complex industrial setups. - Low Thermal Conductivity:
Minimizes heat loss, boosting energy efficiency in operations. - Long-Term Durability:
Extends equipment lifespan by 30%+ vs. standard refractories. - Specifications of Corundum Castable – Customizable to match diverse industrial needs, with strict quality parameters.
Our corundum castable offers flexible specs: Alumina content (85–95%), bulk density (2.8–3.2 g/cm³), cold crushing strength (≥80 MPa), refractoriness under load (≥1600°C), and setting time (2–6 hours). Tailored formulations available for specific project demands.
Chapter 3
Specifications of Our Corundum Castable
| Corundum Castable | CC-95 |
|---|---|
| Al2O3 % | 95 |
| Bulk density g/cm3 | 2.8 |
| Cold abrasion resistance cc | 6.5 |
| Crushing strength MPa | 120 |
| Modulus of rupture MPa | 16 |
| Refractoriness ℃ | 1790 |
| Thermal shock resistance（900℃,water cooling）/times | 25 |
Chapter 4
Application of Corundum Castable
Versatile solutions for high-heat industrial sectors worldwide.
1. Steel Industry Furnaces
- A leading steel mill in Pennsylvania, USA, used our 90% aluminum corundum castable for blast furnace throat linings. It endured 1650°C continuous heat, reducing maintenance cycles from 2 months to 6 months, cutting downtime by 67%.
- A steel plant in Osaka, Japan, applied our castable to tundish walls. Resistant to molten steel erosion, it extended tundish service life by 45% compared to previous refractories, lowering operational costs.
2. Cement Kiln Linings
- A cement manufacturer in São Paulo, Brazil, lined their rotary kiln burning zone with our castable. It withstood cyclic heating (1400–1500°C) and alkali attacks, reducing kiln shutdowns for relining from 3 times/year to 1, increasing production efficiency.
- A cement plant in Punjab, India, used it for preheater cyclones. The castable’s abrasion resistance minimized wear from cement clinker, extending cyclone lifespan by 8 months, saving $50k in annual repairs.
3. Glass Melting Furnaces
- A glass factory in Bavaria, Germany, installed our castable in regenerator checkerworks. It resisted 1600°C flue gases and glass batch corrosion, maintaining structural integrity for 18 months vs. 10 months with prior materials.
- A float glass plant in Guangdong, China, applied it to furnace sidewalls. The castable’s low thermal conductivity reduced heat loss by 22%, lowering fuel consumption by 150 tons/month, enhancing sustainability.
4. Petrochemical Reactor Insulation
- An oil refinery in Texas, USA, used our castable for catalytic cracker linings. It withstood 1450°C regenerator temperatures and hydrocarbon exposure, reducing reactor maintenance from quarterly to bi-annually, improving throughput.
- A petrochemical plant in Rotterdam, Netherlands, lined their ethylene cracking furnace tubes with our castable. It resisted thermal shock and coke buildup, extending tube service life by 50%, boosting plant uptime.
Chapter 5
Quality Assurance for Corundum Castable
Our corundum castable undergoes strict quality checks: X-ray fluorescence (XRF) for alumina content, thermal shock testing (1100°C–water quench cycles), and abrasion resistance trials. Certified by ISO 9001, SGS, and CE, ensuring compliance with EU, US, and Asian industrial norms.
The key quality tests typically include:
| Inspection Items | Test Standards/References | Testing Methods | Technical Indicators/Acceptance Criteria |
|---|---|---|---|
| 1. Physical Properties | |||
| - Density | ASTM C1029, ISO 10630 | Gravimetric method | Meets specified density range (e.g., 128-220 kg/m³) |
| - Tensile Strength | ASTM C1185, ISO 12680 | Universal testing machine | ≥ [Specified value] (e.g., 0.25 MPa) |
| - Thermal Conductivity | ASTM C1114, ISO 8302 | Hot plate method / guarded hot plate | ≤ [Specified value] (e.g., 0.09 W/m·K at 500°C) |
| - Flexibility & Brittleness | Internal standard / visual inspection | Bend test / impact resistance test | No cracking or fragmentation under specified bending radius |
| 2. Chemical Properties | |||
| - Loss on Ignition (LOI) | ASTM C838, ISO 3251 | High-temperature furnace heating | ≤ [Specified value] (e.g., 5% at 1000°C for 2h) |
| - Chemical Composition | XRF analysis, ASTM C1285 | X-ray fluorescence spectroscopy | Main components (e.g., SiO₂, Al₂O₃) within specified ranges; impurities ≤ limit |
| - Acid/Alkali Resistance | Immersion test (ASTM C267) | Immersion in standard acid/alkali solutions | No significant degradation or property change |
| 3. Thermal Properties | |||
| - Maximum Service Temperature | ASTM C1029, ISO 19289 | Furnace endurance test | No melting, shrinkage ≤ 5%, or property loss at specified temperature |
| - Thermal Stability | Cyclic heating-cooling test | Repeated heating to max service temperature | Mass loss ≤ 3%, dimensional change ≤ 2% after cycles |
| 4. Dimensional Accuracy | |||
| - Dimensions (Length/Width/Thickness) | GB/T 3003, ISO 6965 | Vernier caliper, ruler | Within ±[Specified tolerance] (e.g., ±1mm for thickness) |
| - Flatness/Warpage | Straightedge test | Visual inspection with straightedge | Warpage ≤ [Specified value] (e.g., 5mm/m²) |
| 5. Appearance Quality | Internal visual inspection standard | Visual check, surface scanning | No visible defects (cracks, holes, impurities, delamination, uneven color) |
| 6. Packaging & Marking | Customer-specific requirements | Visual inspection, documentation check | Packaging intact, labels clear (product name, batch number, specifications, origin, handling warnings) |
Through this meticulous testing process, we ensure that our corundum castable products meet the highest standards of quality, reliability, and performance, making them ideal for various applications in various industries.
Chapter 6
Chapter 7
In Summary
Corundum castable from Henan Jianhong combines exceptional heat resistance, durability, and versatility, trusted by 500+ global clients. Ideal for steel, cement, glass, and petrochemical sectors, it delivers long-term cost savings and operational efficiency.
With 15+ years of experience, we export to 30+ countries, offering custom formulations, technical support, and on-time delivery. Partner with us for high-quality corundum castable that meets your industrial needs—from sample testing to bulk orders.
Ready to elevate your operations?
Contact Henan Jianhong Refractory Materials today—let us be your reliable source for durable, high-performance refractory solutions.
