65% Al2O3 min High Alumina Insulating Fire Brick

65% Al2O3 min High Alumina Insulating Fire Brick

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 500 m.t.

Supply Capability:: 1000 m.t./month

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Specifications

1.65% Al2O3 min;
2. Refractoriness: 1790C min;
3.For steelmaking furnaces;
4.ISO 9001 Certificate;
5.Custom shape.

High alumina insulating fire brick is a kind of insulation material adopting organic matter as ignition loss substance in order to increase the porosity of refractory, which has such advantages as high porosity, small volume density, good insulation effect, high mechanical intensity, small thermal conductivity and long service life. For various industrial kilns & furnaces, it is a kind of essential refractory for energy saving and temperature preservation.

This series of High Alumina Insulating Fire Brick are made of selected high alumina bauxite, kaolin caly, hollow microsphere as the mian material.By shaping at high pressure and sintering at high temperature.

Items		Mark
		Hihg Alumina brick			Clay brick		Phosphoric acid dipping clay brick
		GL-65	GL- 55	GL- 48	ZGN-42	ZGN-42	Phosphoric acid dipping clay brick
Chemical Compositions ( %) ≥	Al2O3	65	55	48	42	42
	Fe2O3	2.0	2.0	2.0	1.6	1.7
	P2O5	-	-	-	-	-	7
Refractoriness ℃		1790	1770	1750	1750	1750	-
Apparent Porosity (%)≤		19	19	18	15	16	14
Alkali resistance (strength degradation)%≤		-	-	-	-	-	15
0.2MPaRefractoriness under load,℃≥		1500	1480	1450	1450	1430	1450
CCS (Mpa)≥		58.8	49	49	58.8	49	60
Dead burnt linear change(%)≤	1450℃×2h			0/-0.2	0/-0.2	0/-0.3	0/-0.2
Dead burnt linear change(%)≤	1500℃×2h	0/-0.2

Starting from the raw material into factory, Every production process of high alumina insulating fire bricks should through strict quality control, both the raw materials and finished products should be inspected time after time, to esure that each product to satisfy our customers, because of advanced automatic batching system and 2500 tons automatic hydraulic machine in the world were introduced, then a new line of the ladle fire bricks and other styling refractory products with a superior quality was put into production.

Q:Are insulating fire bricks resistant to abrasion or wear?: Yes, insulating fire bricks are generally resistant to abrasion or wear. These bricks are designed to withstand high temperatures and provide insulation, making them durable and less prone to wear or damage from abrasion.

Q:Can insulating fire bricks be used in the construction of glassware production furnaces?: Yes, insulating fire bricks can be used in the construction of glassware production furnaces. These bricks have excellent thermal insulation properties and can withstand high temperatures, making them ideal for creating a well-insulated and efficient furnace for glass production.

Q:Are insulating fire bricks resistant to thermal radiation?: Yes, insulating fire bricks are designed to be resistant to thermal radiation. These bricks are made from materials that have low thermal conductivity and high thermal resistance, allowing them to effectively insulate against heat transfer through radiation.

Q:Are insulating fire bricks suitable for use in the construction of drying ovens?: Insulating fire bricks are indeed suitable for use in the construction of drying ovens. Their design aims to minimize thermal conductivity, enabling efficient heat retention within the oven. This particular feature is crucial for drying ovens as it promotes consistent and uniform temperature maintenance throughout the drying process. Moreover, insulating fire bricks possess remarkable resistance to thermal shock, ensuring they can endure rapid temperature changes that may occur during the oven's heating and cooling cycles. This durability guarantees that the bricks will not crack or break under extreme temperature conditions. Additionally, these bricks are lightweight and easy to handle, providing convenience during installation in drying ovens. Overall, their excellent insulation and thermal stability qualities make them a highly appropriate option for constructing drying ovens.

Q:Are insulating fire bricks suitable for insulation in petrochemical plants?: Yes, insulating fire bricks are suitable for insulation in petrochemical plants. These bricks are made from lightweight refractory materials and have excellent thermal insulation properties. They can withstand high temperatures and provide insulation against heat transfer, making them ideal for use in petrochemical plants where insulation is crucial for safety and energy efficiency.

Q:Are insulating fire bricks resistant to flame impingement?: Yes, insulating fire bricks are resistant to flame impingement.

Q:How do insulating fire bricks affect overall heating and cooling costs?: The utilization of insulating fire bricks can have a significant impact on the overall costs associated with heating and cooling. These bricks are specially designed to possess a low thermal conductivity, which makes them highly effective at preventing the transfer of heat. Incorporating insulating fire bricks into the construction of a building greatly reduces the amount of heat lost during colder months, resulting in a decreased need for energy to maintain a comfortable indoor temperature and consequently lowering heating costs. Likewise, during warmer months, insulating fire bricks aid in keeping heat out and maintaining a cooler indoor environment. This diminishes reliance on air conditioning systems, leading to reduced cooling costs. The high thermal resistance of these bricks plays a crucial role in minimizing heat gain from the external environment, offering a more energy-efficient solution. Furthermore, the use of insulating fire bricks can also contribute to the long-term durability and efficiency of heating and cooling systems. By lessening the workload on these systems, they can operate more efficiently, resulting in less wear and tear and potentially extending their lifespan. This can lead to additional cost savings by eliminating the need for frequent repairs or replacements. Overall, insulating fire bricks offer substantial benefits in terms of reducing heating and cooling costs. By enhancing thermal insulation, they facilitate the creation of a more energy-efficient building, ultimately resulting in lower utility bills and a reduced carbon footprint.

Q:Can insulating fire bricks be used in ceramic fiber boards?: Insulating fire bricks have the potential to be utilized in ceramic fiber boards. They are commonly employed as a lining material for high-temperature purposes due to their ability to endure extremely high temperatures and offer exceptional thermal insulation. Conversely, ceramic fiber boards are lightweight and possess commendable thermal shock resistance, rendering them suitable for employment in diverse industrial and residential settings. When utilized in conjunction, insulating fire bricks can be positioned behind or around the ceramic fiber boards to augment their insulating properties and elevate overall thermal efficiency. The bricks have the capability to provide additional structural support and assist in retaining heat within the system, thereby enhancing energy efficiency and minimizing heat loss. Nevertheless, it is crucial to acknowledge that the compatibility of insulating fire bricks and ceramic fiber boards might fluctuate based on the specific application and requirements. It is advisable to seek guidance from manufacturers or industry professionals to ensure appropriate selection and installation of these materials according to your individual needs.

Q:Can insulating fire bricks be used in high-temperature insulation blankets for aerospace applications?: Insulating fire bricks are not typically used in high-temperature insulation blankets for aerospace applications due to their solid and rigid nature, which makes them unsuitable for flexible and conformable insulation. Instead, aerospace insulation blankets are typically made from flexible and lightweight materials like ceramic fiber or silica fiber. These materials offer excellent thermal insulation properties and can easily mold and shape to fit complex geometries. They provide effective heat insulation and protection for critical components. Additionally, insulation blankets in aerospace applications must meet stringent requirements such as low outgassing, high thermal stability, and resistance to vibration and mechanical stress. Insulating fire bricks may not satisfy these specific requirements and may not withstand the extreme conditions in aerospace environments. In conclusion, while insulating fire bricks excel in certain high-temperature insulation applications, they are not appropriate for aerospace insulation blankets. The aerospace industry demands insulation materials that are flexible, lightweight, and high-performing, capable of conforming to intricate shapes and enduring the unique challenges of this sector.

Q:Can insulating fire bricks be used in high-temperature insulation applications?: Indeed, high-temperature insulation applications can employ insulating fire bricks. These bricks are specifically engineered to endure and preserve heat in elevated temperatures. With their low thermal conductivity and exceptional insulation capabilities, they prove to be the perfect choice for containing and insulating high temperatures. Their widespread usage can be observed in industries like steel, glass, and ceramics, as well as in furnaces, kilns, and other equipment operating at extreme temperatures. By effectively retaining heat and minimizing energy loss, insulating fire bricks offer a dependable and efficient insulation solution for high-temperature environments.

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