High-alumina refractory castable, high-strength wear-resistant castable, special refractory materials for industrial kilns and boilers - Factory direct sales

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High-alumina refractory castable

Product Introduction：

Product Introduction High-alumina refractory castable is a monolithic refractory material formulated with high-alumina bauxite clinker as aggregate and powder, along with binders and additives. This product has a high aluminum content and is one of the most widely used casting materials in industrial kiln construction.Product Features1. High Mechanical Strength: Exhibits excellent load-bearing capacity at both room and high temperatures.2. Good Thermal Shock Resistance: Can withstand drastic temperature fluctuations caused by frequent kiln opening and closing, and is not prone to cracking.3. Abrasion and Erosion Resistance: Effectively resists the physical erosion of high-temperature airflow, smoke, and molten slag.4. Convenient Construction: Good fluidity, suitable for casting linings of complex shapes, with strong overall integrity.Typical Physicochemical Properties• Al2O3 Content: ≥70% - 80%• Bulk Density: 2.3 - 2.5 g/cm³• Refractoriness: ≥1790℃• Flexural Strength (1100℃): ≥7.0 MPaApplications• Power Industry: Circulating fluidized bed boilers, power plant boiler linings.• Metallurgical Industry: Blast furnace hot blast stoves, soaking furnaces, taphole seals.• Building Materials Industry: Cement rotary kiln inlets, cooler linings.• Machinery Industry: Various heat treatment furnaces, induction furnaces, etc.

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PRODUCT DETAILS

Product Features

1. High Mechanical Strength: Exhibits excellent load-bearing capacity at both room and high temperatures.

2. Good Thermal Shock Resistance: Can withstand drastic temperature fluctuations caused by frequent kiln opening and closing, and is not prone to cracking.

3. Abrasion and Erosion Resistance: Effectively resists the physical erosion of high-temperature airflow, smoke, and molten slag.

4. Convenient Construction: Good fluidity, suitable for casting linings of complex shapes, with strong overall integrity.

Typical Physicochemical Properties

• Al2O3 Content: ≥70% - 80%

• Bulk Density: 2.3 - 2.5 g/cm³

• Refractoriness: ≥1790℃

• Flexural Strength (1100℃): ≥7.0 MPa

Applications

• Power Industry: Circulating fluidized bed boilers, power plant boiler linings.

• Metallurgical Industry: Blast furnace hot blast stoves, soaking furnaces, taphole seals.

• Building Materials Industry: Cement rotary kiln inlets, cooler linings.

• Machinery Industry: Various heat treatment furnaces, induction furnaces, etc.

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Wear-Resistant Refractory Castable

Wear-resistant refractory castable is a monolithic refractory material made from high-alumina aggregates, corundum, silicon carbide, and other high-hardness wear-resistant raw materials, combined with high-quality binders and additives. It is installed by on-site mixing with water and casting into place, forming a dense and integral lining structure.This product is widely used in high-temperature environments with severe abrasion, strong erosion, and particle impact conditions.Excellent Wear ResistanceHigh-hardness aggregates effectively resist material abrasion, particle impact, and mechanical erosion, significantly extending lining service life.High RefractorinessWorking temperature can reach 1300°C – 1600°C, suitable for a wide range of industrial furnaces and kilns.Strong Erosion ResistanceDesigned for high-velocity gas flow and heavy dust or particle environments, ensuring stable long-term performance.Good Thermal Shock ResistancePerforms well under frequent heating and cooling cycles, reducing cracking and spalling risks.Monolithic StructureSeamless cast lining reduces weak joints, minimizes heat loss, and improves overall structural integrity.Typical ApplicationsCement rotary kiln systems (preheater, tertiary air duct, grate cooler)Circulating Fluidized Bed (CFB) boilersPower plant boilersSteel reheating and heat treatment furnacesWaste incineration furnacesChemical high-temperature reactorsMetallurgical and industrial wear-prone equipmentAdvantages✔ Extended service life of kiln lining✔ Reduced maintenance frequency✔ Lower downtime and production loss✔ Improved operational stability✔ Reduced overall operating costsConstruction MethodMix with water → Casting → Vibration compaction → Curing → Drying & heat-up before operationSupply & CustomizationWe provide customized formulations based on working temperature, abrasion intensity, and chemical conditions to meet different industrial requirements.Manufacturer InformationXinxiang Tianyi Insulation Materials Co., Ltd. specializes in the R&D and production of high-performance refractory and thermal insulation materials, providing reliable kiln lining solutions for global industrial customers.

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