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High Alumina Castable Introduction. High Alumina Castable is a kind of refractory castable that uses high alumina raw material as aggregates and the powder and then added with a binding agent. High aluminum refractory castable has high mechanical strength, good thermal shock resistance, and good corrosion resistance. It’s mainly used for furnace lining of boilers, blast furnace hot blast stoves, heating furnaces, ceramic kilns, and various industrial furnaces.

As one of the castable refractory materials, what is the price of high alumina castable? How much does it cost to buy a ton of high aluminum castable refractory? Rongsheng aluminum castable manufacturers pointed out that the first thing to do is to choose a castable refractory material suitable for the production needs of industrial furnaces. Since there are many categories of refractory materials in the market, for example, insulating castable refractory, corundum castable, wear-resistant castable, and so on. The parts of the kiln lining used by different categories are also different. Their respective characteristics and high-temperature resistance are also different.

High Alumina Castable Technique Data in Rongsheng

Items		RSGLJ-1	RSGLJ-2
Al2O3 %		65	75
Refractoriness     ℃		1750	1770
Linear Dimensional Change   %		-0.02	-0.4
Cold Crushing Strength MPa  ≥	110℃×24h	50	60
	1100℃×4h	60	70
Breaking Strength MPa ≥	110℃×24h	9	11
	1100℃×4h	10	12
Maximum Service Temperature  ℃		1200	1400

 

Performance of High Alumina Castable Refractory Material of Rongsheng Manufacturer

Refractoriness refers to the high temperature resistance of refractory materials. Rongsheng castable refractory material has the characteristics of good high-temperature performance and wear resistance. The refractoriness of the castable is directly related to the application performance and stability of the product.

I believe that workers in the high-temperature industry know that high alumina castable refractory is the lining material for high-temperature industrial kilns. Commonly used high-alumina refractory castables as lining equipment include kilns, blast furnace hot blast stoves, heating furnaces, ceramic kilns and other high-temperature industrial kilns. Do you know the strength and limit working temperature of high aluminum refractory castable?

What is the refractoriness of high aluminum castable refractory?

The performance of high alumina refractory castables depends largely on the composition and properties of the refractory raw materials used. The sufficient mixing of refractory raw materials, additives and binders, and the performance at high temperatures also have an impact on the refractoriness of high alumina refractory castables.

Generally, the refractoriness of high aluminum castable refractory is 1450℃. High-alumina refractory castables have different high-temperature properties, and their refractoriness also has a certain range of fluctuations. The refractoriness of high alumina refractory castables ranges from 1400°C to 1560°C. It should be noted that refractory temperature ≠ working temperature; refractory temperature > working temperature.

How is the strength of high alumina refractory castable?

After the construction of the high-alumina refractory castable is completed, the compressive ultimate strength can reach 110MPa. Of course, the above compressive strength can only be achieved with good materials and correct construction methods. Generally, the compressive strength of high aluminum castable refractory can reach 80MPa after construction and drying.

What is the strength of the 75-grade high-temperature resistant castable?

If used in a cement kiln, the cold flexural strength of the high-alumina low-cement refractory castable with 75% aluminum content is ≥8MPa, and the cold compressive strength is ≥80. Used in the front and rear kiln mouths of cement kilns, kiln door covers, cooler fronts, and other high-temperature resistant parts and other industrial kiln linings. The wear-resistant and refractory castables used in the metallurgical industry have better flexural strength and better thermal shock resistance.

Application of High Alumina Castable

High Alumina Castable also called calcium clinker, is made from industrial alumina oxide powder and selected limestone powder. It is produced after being manufactured under high temperature in rotary and grind into powder. The product is for making high-quality refractory castables, which is a dispensable tool used in high-temperature facilities in industries like metallurgy, building material, chemical, electric plant, etc.

Rongsheng High Aluminum Castable Refractory Manufacturer

As far as high alumina castable refractory is concerned, Rongsheng castable refractory material manufacturers can not only provide two series with Al2O3 content of 72% and 82%. There are also high alumina spray refractory castables and high alumina self-flowing refractory castables. High alumina low cement/high alumina high strength refractory castable, high alumina steel fiber reinforced refractory castable. Lightweight high-alumina insulating castable refractory, micro-expansion high-alumina castable refractory material and other products. Rongsheng has a variety of high-quality refractory castable product categories, which can meet the needs of various types of thermal kilns.

High alumina spray refractory castable. High alumina spray refractory castable is a mixture of refractory aggregates, powders, binders and additives. It is an unshaped refractory material that is constructed by mechanical spraying with pneumatic tools. It has the following characteristics: no formwork is required, time and effort are saved, the construction speed is fast, and direct spraying can be used for continuous construction. It ensures that the material has strong structural stability and effectively prolongs the service life of the lining.

High alumina self-flowing refractory castable. High-alumina self-flowing refractory castables are based on high-strength low-cement castables with self-flowing agents, anti-explosion agents and a certain amount of mineralizers. There is no need for forming vibration during construction, which can reduce noise, improve the environment and reduce labor intensity. And it has the characteristics of high strength, good toughness, high refractoriness, good fluidity, strong resistance to peeling and wear resistance, and convenient construction.

High alumina low cement/high alumina high strength refractory castable. High-aluminum low-cement castables have the characteristics of high density, low porosity, high strength, low wear, thermal shock resistance and corrosion resistance. Combining the characteristics of traditional refractory materials and adopting micro-powder application technology, the medium-temperature strength and high-temperature volume stability of the castable are significantly improved. Make the organizational structure of the product form a firm anchor head-like multi-directional crystal structure at high temperature, ensuring the stability of the overall structure of the lining. The service life is 2-3 times higher than that of traditional castables. It is suitable for cement kiln, kiln hood, grate cooler, preheater, calciner, tertiary air duct, grate cooler, etc.

High alumina steel fiber reinforced refractory castable. High-alumina steel fiber reinforced refractory castable is based on high-alumina high-strength refractory castable, adding heat-resistant stainless steel fiber. The network frame structure is formed inside the castable, and the stress distribution inside the castable is changed at the same time. On the basis of ensuring the original high-temperature performance of the castable, the toughness, mechanical vibration, shock and wear resistance of the castable are enhanced, and the service life of the castable is improved. Mainly used in cement kiln kiln mouth, kiln hood, tertiary air duct, grate cooler and other parts.

High Aluminum Castable Refractory Manufacturer

Rongsheng Refractory Manufacturer is a manufacturer of monolithic refractory castables such as aluminum castable with rich experience in production and sales. For a series of questions about high alumina castable refractory, for example, “How much is the price of high alumina castable refractory?”, “How to buy high alumina insulating castable refractory?”, etc., please contact us. We can not only provide you with high-quality castable refractory material products and configuration of refractory lining material solutions, but also we provide high-quality customer service.