Name: China High Alumina Brick Refractory Manufacturers, Suppliers and Factory - Good Price
Brand: Long Keter
SKU: 223449499

Products Description

High alumina brick refractory are divided into different types according to the different contents of aluminum oxide, smelting methods and product quality. According to the content of aluminum oxide, it can be divided into different brands of high alumina bricks such as 45%, 55%, 60%, 65%, 75%, 80%; according to different smelting methods, it can be divided into oxygen converter method high alumina bricks , alkaline-acid converter method high alumina bricks, fused high alumina bricks, hot-rolled high alumina bricks, grouting high alumina bricks and other types; according to different product quality, they can be divided into coke wear-resistant high alumina bricks, desulfurization high alumina bricks , unsaturated red brick and many other types.

Products Parameters

Material		Common				Special
Material		Common				Special
Item		SK36	SK38	TS80	TS85	SL-92	SL-90	SL-85	SL-80	SL-75	SL-70	SL-60	SL-50
Pyrometric Cone Equivalent Orton cone		35-36	37-38	38	﹥38	40	40	40	39	39	38	37	36
Pyrometric Cone Equivalent Orton cone		35-36	37-38	38	﹥38	40	40	40	39	39	38	37	36
Refractoriness (℃)		1785	1810	1835	1840	–	–	–	–	–	–	–	–
0.2 MPa soft under load (%)		–	–	–	–	1700	1700	1700	1670	1650	1580	1550	1500
Bulk Density (kg/m³)		2300-2350	2400-2450	2550-2650	2650-2750	3.10	2.95	2.90	2.85	2.70	2.62	2.50	2.40
Apparent Porosity (%)		20.0-22.0	19.0-20.0	18.0-19.0	17.0-18.0	16	16	19	18	18	18	18	18
Cold Crushing Strength (MPa)		45-48	50-55	60-65	70-75	80	80	800	750	700	700	650	600
Modulus of Rupture (kg/cm²)		70-80	80-90	90-100	150-180	–	–	–	–	–	–	–	–
Thermal Expanison at 1000℃(%)		–	–	–	–	–	–	0.75	0.7	0.65	0.60	0.55	0.50
Reheat test,permanent linear change after heating at	1500℃,2h(%)	–	–	–	–	±0.2	±0.2	±0.2	±0.2	±0.2	±0.2	±0.2	±0.2
Reheat test,permanent linear change after heating at	1400℃(%)	(+)0.5	(+)1.00	(+)1.02	–	–	–	–	–	–	–	–	–
SiO₂ (%)		38.2	20.2	14.0	8.7	–	–	–	–	–	–	–	–
Al₂O₃ (%)		48-55	70-75	81.1	85	92	90	85	80	76	70	65	50
Fe₂O₃ (%)		1.8	1.8	1.8	1.8	0.8	0.8	1.0	1.0	–	–	–	–
Cao (%)		0.4	0.4	0.3	0.2	–	–	–	–	–	–	–	–
Na₂O+K₂O+Li₂O (%)		0.5	0.5	0.3	0.2	–	–	–	–	–	–	–	–

Products standard size (size can be customized)

2 3

Products Advantages

1. High heat resistance: High alumina brick refractory have excellent heat resistance, can withstand high temperature corrosion and thermal stress in high temperature environments, and will not deform or crack after long-term use.

2. Good wear resistance: The surface of high alumina bricks has been specially treated and has very good wear resistance, which can effectively prevent the erosion and wear of materials in the furnace.

3. High slag resistance: The main component of high alumina bricks is Al2O3, which has good slag resistance and can effectively resist the erosion of alkaline and acidic slag.

4. Good alkali resistance: High alumina bricks have less silicon oxide content inside and higher aluminum oxide content, so they are not easily corroded by materials with high alkalinity.

5. Excellent thermal shock resistance: The high strength and high fracture toughness of high-alumina bricks can withstand thermal shock caused by alternating hot and cold in the furnace, and are not easy to break and crack.

6. High compressive strength: High alumina bricks have high compressive strength and can withstand a large amount of pressure.

7. Good chemical resistance: High alumina bricks can withstand the erosion of many strong acids and other chemical substances and have a long service life.

Products Applications

1. Glass kiln furnace: a lining structure made of high alumina brick refractory, insulation layers and other different types of bricks. The high alumina bricks have good resistance to chemical corrosion and can resist the erosion of chemical evaporates of glass.

2. Metallurgical industry: High alumina bricks can be used in the lining structures of steel smelting equipment, such as tundish, continuous casting slabs, etc., with good application results.

3. Building materials industry: High alumina bricks can be used in the lining structure of high-temperature kiln tunnels, such as building ceramics, refractory materials, etc.

4. Petroleum industry: High alumina bricks can be used in the lining structure of oil refining units to resist the high temperature and high pressure environment and chemical corrosion in the oil refining units.

5. Chemical industry: Many products in the chemical industry require high-temperature processing, and high-alumina bricks have particularly good fire resistance, so they are often used in the manufacture of chemical equipment.

6. Other industries: High alumina bricks can also be used in the lining structures of other high-temperature industrial furnaces and heating furnaces, heat treatment equipment, etc.