High aluminum castable refers to a refractory castable with Al2O3 content greater than 48%, which is a refractory material composed of high bauxite, corundum and other aggregates, powders, and adjuvants such as binders and admixtures.
It has the advantages of high temperature strength, good wear resistance and strong erosion resistance, and is widely used in high temperature industrial fields such as steel, non-ferrous metals, electric power and petrochemical.
(1) Good high temperature strength
(2) Good thermal shock resistance
(3) Wear resistance and erosion resistance
(4) Strong chemical stability
(5) Good volume stability
(6) Good corrosion resistance
(7) Low high temperature creep rate
Iron and steel industry, non-ferrous metal industry,building materials industry, power industry
|
Item |
Index |
||||
|
GLJ-50 |
GLJ-60 |
GLJ-65 |
GLJ-70 |
GLJ-80 |
|
|
Al2O3（%≥） |
50 |
60 |
65 |
70 |
80 |
|
Cold pressing strength≥Mpa |
25 |
30 |
35 |
35 |
40 |
|
Heating line changes (1500°C 3h) % |
±0.8 （1350°C） |
-0.8~ +0.8 （1400°C） |
±0.8 （1500°C） |
||
|
Body density（g/cm3） |
2.15 |
2.30 |
2.40 |
2.45 |
2.65 |
|
Refractoriness（℃≥） |
1700 |
1720 |
1720 |
1720 |
1780 |
Highland Refractory classifies High Aluminum Castable based on alumina (Al₂O₃) content and functional needs to adapt to diverse industrial high-temperature scenarios, including Low-Grade High Aluminum Castable (Al₂O₃: 40-60%, suitable for medium-temperature equipment like boiler linings), Medium-Grade High Aluminum Castable (Al₂O₃: 60-80%, ideal for high-wear zones such as cement kiln transition zones), and High-Grade High Aluminum Castable (Al₂O₃: ≥80%, designed for ultra-high-temperature environments like steel ladle linings); additionally, there are specialized variants like Low-Cement High Aluminum Castable (cement content ≤3%, for low-heat-release applications) and Self-Flowing High Aluminum Castable (for complex-shaped components), each type of High Aluminum Castable is formulated to balance cost, strength, and temperature resistance for targeted use cases.
Highland’s High Aluminum Castable stands out in industrial high-temperature construction with core strengths: it offers excellent thermal stability, maintaining structural integrity even under long-term exposure to temperatures ranging from 1200℃ to 1700℃ (depending on the grade); it has strong mechanical strength and wear resistance, withstanding the impact of high-temperature materials (like cement clinker or molten slag) without cracking or erosion; it also features good workability, allowing easy mixing with water and shaping into custom forms—from large furnace linings to small precision parts—these advantages make High Aluminum Castable a cost-effective and reliable choice for upgrading the durability of high-temperature equipment.
High Aluminum Castable is widely used across sectors that demand high-temperature resistance and structural reliability: in the cement industry, it lines rotary kiln transition zones and cooler walls, resisting alkaline clinker wear and temperature fluctuations; in the steel industry, it serves as steel ladle linings and tundish refractories, enduring molten steel and slag corrosion; in the power industry, it is applied to boiler combustion chambers and incinerator walls, withstanding high heat and flue gas erosion; in the ceramic industry, it forms kiln floors and burner blocks, providing stable support for ceramic firing processes—each application leverages High Aluminum Castable’s ability to balance performance and cost for industrial-scale use.
High Aluminum Castable (Highland) excels in cost-effectiveness and versatility, with adjustable alumina content that allows it to meet diverse temperature and wear needs across industries—from medium-temperature boilers to high-temperature steel ladles—making it ideal for large-scale, budget-conscious projects where balanced performance is key; White Corundum Castable, by contrast, specializes in ultra-high purity (Al₂O₃ ≥95%) and superior corrosion resistance, suiting high-precision environments like electronic component sintering furnaces or glass kiln throats where impurity control is critical. Each product targets distinct needs: High Aluminum Castable dominates general industrial high-temperature scenarios, while White Corundum Castable leads in high-purity, high-precision applications.
Highland Refractory is a trusted producer of high-quality High Aluminum Castable, backed by 30+ years of refractory expertise—we source high-grade bauxite and fused alumina as raw materials, adopt advanced mixing and granulation technologies to ensure uniform particle distribution, and conduct strict quality testing (measuring compressive strength, thermal shock resistance, and high-temperature line change) for every batch. Each High Aluminum Castable meets ISO 9001/CE standards, and we maintain an annual production capacity of 60,000 tons (covering various refractory materials), serving 1,500+ clients across Asia, Africa, Europe, and Australia. Our technical team also tailors formulations to specific client needs (e.g., adjusting wear resistance for cement kilns), making us a reliable partner for High Aluminum Castable solutions.
Choosing Highland Refractory for your High Aluminum Castable requirements means accessing tailored support and consistent quality: we offer customization (adjusting High Aluminum Castable’s alumina content, cement ratio, and flowability to match your equipment—e.g., self-flowing grades for narrow gaps or high-wear grades for kilns), fast delivery (3–7 days for standard types in stock, 10–15 days for custom formulations), and bulk discounts (5–10% off orders ≥ 10 tons). We also provide free samples, detailed quality inspection reports, and 24/7 technical guidance (advising on mixing ratios and curing processes), ensuring your High Aluminum Castable integrates seamlessly into projects and delivers long-term durability.
A: Yes, we do provide free samples of our standard High Aluminum Castable. You only need to cover the shipping cost to your address. For customized High Aluminum Castable samples, a small fee might apply, but it will be refunded if you place a significant order later.
A: If it's our standard High Aluminum Castable in stock, you can expect delivery within 3 - 7 days. For customized High Aluminum Castable with specific properties like higher alumina content or special workability, it'll take 10 - 15 days as we'll need extra time for production and quality checks. For large - scale bulk orders, we'll work with you to set a suitable delivery schedule.
A: Our High Aluminum Castable is carefully packaged. First, it's sealed in moisture - proof bags to prevent moisture from affecting its performance. Then, these bags are placed in robust steel drums or well - reinforced wooden crates depending on the quantity. The containers are clearly labeled with handling instructions such as "Keep Dry" and "Handle with Care", along with product details.
A: We accept T/T (Telegraphic Transfer) and PayPal for payments. Just like with our other products, we require full payment before dispatching the High Aluminum Castable. We're always looking into adding more payment options to make it more convenient for our customers.
A: Absolutely. Every batch of High Aluminum Castable we produce undergoes strict quality control. You'll receive a detailed quality inspection report that includes information about its chemical composition, physical properties like density and strength, and its performance under high - temperature conditions. This will give you confidence in the quality of the High Aluminum Castable you purchase.
A: We're sorry if you receive damaged High Aluminum Castable. Please contact our customer service right away and provide photos and detailed descriptions of the damage. We'll promptly arrange to replace the damaged product with a new, undamaged batch at no extra cost to you.
High alumina fine powder is a powder material with alumina (Al2O3) as the main component.
Refractory cement, also known as aluminate cement, is a fire-resistant hydraulic cementitious material.
Steel fiber wear-resistant castables are widely used in high temperature and wear-resistant environments in many industrial fields such as metallurgy, building materials, and chemicals.
White corundum castable is a high-quality high-temperature refractory material with high-purity alumina powder as the main raw material.
Lightweight insulation castable is a refractory with low density and excellent insulation properties.
Corundum mullite castable is a high-quality high-performance refractory material with high thermal conductivity, insulation, good chemical stability and resistance to reducing agents.
Silicon carbide castable is an amorphous refractory material with silicon carbide as the main component.
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.
high alumina cement is a powder material with alumina (Al2O3) as the main component.
Plastic is an amorphous refractory material in the form of hard mud and has high plasticity.
Refractory spray coating is a kind of amorphous refractory material, which is applied to the lining of thermal equipment by spraying construction method.
Widely used in a variety of furnace front package, transfer package, ladle insulation layer...
Widely used in a variety of furnace front package, transfer package, ladle insulation layer...
High temperature and high strength repair material is a special material used to repair equipment and structures in high temperature environments.
High alumina poly light brick is a high quality lightweight refractory material.
Low creep clay bricks have a low creep rate in high temperature environments and can maintain good shape and dimensional stability for a long time.
