Name: China High Alumina Cement Manufacturers Suppliers Factory - Good Price High Alumina Cement
Brand: Long Keter
SKU: 220422793

Products Description

Refractory materials refer to materials that can maintain certain mechanical properties and chemical stability under harsh environments such as high temperature, acid, alkali, and corrosion. High alumina cement is a commonly used refractory material.

High alumina cement is mainly made from high-alumina bauxite and limestone calcined at high temperatures. Since the main component of high alumina bauxite is Al2O3, high alumina cement has a very high Al2O3 content and has very good fire resistance at high temperatures.

Products Parameters

Category		CA50			CA70
Product Grade		A600	A700	A900	CA70	CA70W	CA70S	CA71
Chemical Composition (%)	SiO₂	≤8.0	≤7.5	≤6.0	≤0.5	≤0.5	≤0.5	≤0.5
	Al₂O₃	≥50.0	≥51.0	≥53.5	68.5-70.5	68.5-70.5	68.5-70.5	69.5-71.5
	Fe₂O₃	≤2.5	≤2.5	≤2.5	≤0.2	≤0.2	≤0.2	≤0.2
	R₂O	≤0.4	≤0.4	≤0.4	≤0.4	≤0.4	≤0.4	≤0.4
	S	≤0.1	≤0.1	≤0.1	–	–	–	–
	Cl	≤0.1	≤0.1	≤0.1	–	–	–	–
	CaO	–	–	–	28.5-30.5	28.5-30.5	28.5-30.5	27.5-29.5
	MgO	–	–	–	≤0.4	≤0.4	≤0.4	≤0.4
325M Residue on sieve (%)		≤15	≤12	≤8	–	–	–	–
325M Residue on sieve (%)		≤15	≤12	≤8	–	–	–	–
S (m²/kg)		≥300	≥320	≥350	–	–	–	–
Initial setting time (min)		≥45	≥60	≥90	120-180	30-90	180-240	150-210
Final setting time (h)		≤6	≤6	≤6	150-240	90-180	240-330	210-300
Flexural strength (MPa)	1d	6	6.5	8.0	7.5-10.0	8.0-10.5	8.0-10.5	8.5-11.0
Flexural strength (MPa)	3d	7	7.5	10.0	10.0-12.0	10.5-12.5	10.5-12.5	11.0-12.5
Compressive strength (MPa)	1d	45	55	72	40-50	45-55	45-55	50-60
Compressive strength (MPa)	3d	55	65	82	45-55	50-60	50-60	55-65

Products Advantages

High alumina cement has a series of excellent properties. First of all, high alumina cement has very good chemical stability and can operate stably for a long time in acid and alkali corrosive environments. Secondly, the wear resistance of high-alumina cement is also very good, which can prevent scrapping caused by mechanical wear during the production process. In addition, the initial and final setting times of high-alumina cement are relatively fast, which can improve work efficiency.

Products Applications

High alumina cement is a kind of refractory material, which is made by calcining high alumina bauxite and limestone at high temperature. High alumina cement can maintain certain chemical stability and mechanical properties under harsh conditions such as high temperature, acid and alkali, and is widely used in the manufacture and maintenance of various high-temperature equipment.

High alumina cement has a wide range of applications, mainly including the following aspects:

1. Foundry industry

High alumina cement is often used in the manufacture and repair of high-temperature equipment such as casting models, casting furnace bodies, and heat treatment furnaces. Casting models require high temperature resistance, wear resistance, vibration resistance and other properties, and high alumina cement has these characteristics. The application of high alumina cement in casting can effectively extend the life of equipment and improve production efficiency and product quality.

2. Metallurgical industry

High alumina cement can be used in the manufacture and maintenance of metallurgical equipment such as copper furnaces, steel furnaces, and blast furnaces. These equipment need to withstand harsh conditions such as high temperature, high pressure, corrosion, etc., and high alumina cement is an important refractory material that can ensure the stable operation of the equipment.

3. Chemical industry

High alumina cement is also widely used in the chemical industry. Chemical equipment needs to withstand various acid and alkali corrosion. In this environment, high alumina cement can ensure the chemical stability, strength and wear resistance of the equipment, allowing the equipment to operate stably for a long time.

4. Energy industry

High alumina cement also has important applications in the energy industry. In energy equipment such as steel plants and thermal power plants, high alumina cement is often used in the manufacture and maintenance of refractory bricks. It is also used in the manufacture and maintenance of high-temperature stoves such as boilers and burners.

In short, high alumina cement can maintain certain chemical stability and mechanical properties in harsh environments such as high temperature, acid and alkali, and is therefore widely used in many industries such as foundry, metallurgy, chemical industry, and energy. In the future, with the development of science and technology and the continuous expansion of applications, the application scope of high alumina cement will also continue to expand, and its performance will also be further improved.