SK-34 Insulating Fire Brick

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Specifications

Fire brick
1.ISO 9001 approved,
2.With high quality and competitive price,
3.Standard and special shape.

Fire-clay refractory brick.
1. N-1
AL2O3 (%)>42
Refractoriness >1750
Refractoriness under load KD>1400
Permanent linear change onreheating
1500*2h
1450*2h
1400*2h:+0.1; -0.4
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>29.4

2. N-2a
AL2O3 (%)>40
Refractoriness >1730
Refractoriness under load KD>1350
Permanent linear change onreheating
1500*2h
1450*2h
1400*2h:+0.1; -0.5
Apparent Porosity(%)<24
Cold crushing strength (Mpa)>24.5

High-alumina refractory brick
1. LZ-75
AL2O3 (%)>75
Refractoriness>1790
Refractoriness under load KD>1520
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>53.9

2. LZ-65
AL2O3 (%)>65
Refractoriness >1790
Refractoriness under load KD>1500
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<23
Cold crushing strength (Mpa)>49

3.LZ-55
AL2O3 (%)>55
Refractoriness >1770
Refractoriness under load KD>1470
Permanent linear change onreheating
1500*2h:+0.1; -0.4
1450*2h
1400*2h
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>44.1

4.LZ-48
AL2O3 (%)>48
Refractoriness >1750
Refractoriness under load KD>1420
Permanent linear change onreheating
1500*2h
1450*2h:+0.1; -0.4
1400*2h
Apparent Porosity(%)<22
Cold crushing strength (Mpa)>39.2

Fire clay brick SK-32
Item	Standard
AI2O3(%)	30
Fe2O3 (%)	3.5
Refractoriness (SK)	32
Refractoriness under load, 0.2MPa, Ta, (°C)	1300
Porosity (%)	22-26
Bulk density (g/cm³)	2.05
Cold crushing strength (MPa)	25
Thermal expansion at 1000°C (%)	0.6

Fire clay brick SK-34
Item	Standard
AI2O3(%)	38
Fe2O3 (%)	2.5
Refractoriness (SK)	34
Refractoriness under load, 0.2MPa, Ta, (°C)	1350
Porosity (%)	19-23
Bulk density (g/cm³)	2.10-2.15
Cold crushing strength (MPa)	25
Thermal expansion at 1000°C (%)	0.6

Fire clay brick SK-36
Item	Standard
AI2O3(%)	50
Fe2O3 (%)	2
Refractoriness (SK)	36
Refractoriness under load, 0.2MPa, Ta, (°C)	1450
Porosity (%)	20-24
Bulk density (g/cm³)	2.30-2.40
Cold crushing strength (MPa)	45
Thermal expansion at 1000°C (%)	0.3

$SK-34 refractory brick$

Q: Can insulating fire bricks be used in high-temperature kilns and furnaces?: High-temperature kilns and furnaces can indeed utilize insulating fire bricks. These bricks are specifically designed to endure extreme heat and offer remarkable insulation properties. They consist of lightweight refractory materials, including clay and silica, which possess high melting points and low thermal conductivity. By effectively retaining heat, these bricks decrease energy loss and enhance the efficiency of the kiln or furnace. Moreover, insulating fire bricks exhibit excellent resistance to thermal shock, enabling them to withstand rapid temperature fluctuations without cracking or breaking. Consequently, they are well-suited for high-temperature applications that involve frequent heating and cooling cycles in kilns or furnaces. All in all, insulating fire bricks represent an ideal choice for insulating and safeguarding high-temperature kilns and furnaces.

Q: Are insulating fire bricks resistant to thermal expansion or contraction?: Yes, insulating fire bricks are resistant to thermal expansion and contraction. These bricks are made of materials that have low thermal conductivity, allowing them to withstand high temperatures without undergoing significant expansion or contraction. This property makes them ideal for applications where thermal stability and insulation are required, such as in kilns, furnaces, and other high-temperature environments.

Q: Can insulating fire bricks be used for insulation in autoclaves?: Yes, insulating fire bricks can be used for insulation in autoclaves. These bricks are designed to withstand high temperatures and provide excellent thermal insulation, making them suitable for use in autoclaves where temperature control and insulation are important.

Q: Can insulating fire bricks be used in the construction of combustion chambers for rocket engines?: Yes, insulating fire bricks can be used in the construction of combustion chambers for rocket engines. Insulating fire bricks are designed to withstand high temperatures and provide excellent insulation, making them suitable for use in the extreme conditions of rocket engine combustion chambers. Their ability to retain heat while minimizing heat transfer to the surrounding structure is crucial for ensuring efficient and safe operation of the engine.

Q: Can insulating fire bricks be used in the construction of steel rolling mills?: Yes, insulating fire bricks can be used in the construction of steel rolling mills. Insulating fire bricks are designed to have excellent thermal insulation properties, which makes them ideal for applications that require high temperatures and heat containment. In steel rolling mills, where high temperatures are involved, insulating fire bricks can be used to line the walls of furnaces, ovens, and other heat-processing equipment. These bricks help to reduce heat loss, increase energy efficiency, and maintain a stable temperature environment, which is crucial in the steel rolling process. Additionally, insulating fire bricks are lightweight and easy to install, making them a practical choice for construction in steel rolling mills.

Q: Can insulating fire bricks be used in aluminum smelting furnaces?: Indeed, it is possible to utilize insulating fire bricks within aluminum smelting furnaces. The purpose of these bricks is to possess a low thermal conductivity, thus reducing heat losses within the furnace. This characteristic renders them suitable for various high-temperature applications, including aluminum smelting. Additionally, insulating fire bricks exhibit exceptional resistance to thermal shock, enabling them to endure sudden temperature fluctuations that frequently occur during the smelting process. Moreover, their lightweight nature facilitates ease of handling and installation within the furnace. All in all, insulating fire bricks serve as a practical choice for aluminum smelting furnaces, contributing to enhanced energy efficiency and reduced operational expenses.

Q: Can insulating fire bricks be used for insulation in aluminum smelters?: Insulating fire bricks are capable of being utilized for insulation in aluminum smelters. Crafted from unique lightweight materials possessing exceptional insulation properties, these bricks are an optimal choice for high-temperature insulation needs. With aluminum smelters operating at exceedingly elevated temperatures, insulating fire bricks possess the ability to effectively endure and retain heat, thereby averting heat loss and enhancing energy efficiency. Moreover, these bricks exhibit resistance to thermal shock, a prevalent phenomenon in smelting procedures, rendering them highly appropriate for employment in aluminum smelters. Additionally, insulating fire bricks can establish a protective barrier, mitigating the risk of heat damage to neighboring structures and equipment. Consequently, implementing insulating fire bricks for insulation in aluminum smelters can augment thermal efficiency, diminish energy consumption, and guarantee a secure and proficient smelting process.

Q: Are insulating fire bricks suitable for use in wood-fired ovens?: Indeed, insulating fire bricks are appropriate for utilization in wood-fired ovens. These bricks have been meticulously crafted to endure extreme temperatures, rendering them exceptionally suitable for deployment in ovens or other heat-intensive scenarios. Insulating fire bricks boast exceptional thermal insulation properties, aiding in the preservation of heat within the oven and guaranteeing a more effective cooking procedure. Moreover, these bricks exhibit low thermal conductivity, signifying that they transmit less heat to the external surfaces, resulting in a cooking experience that is both safer and more comfortable. Consequently, the utilization of insulating fire bricks in wood-fired ovens can yield superior heat retention, enhanced energy efficiency, and an overall improved performance.

Q: Can insulating fire bricks be used for insulation in heat treatment furnaces?: Yes, insulating fire bricks can be used for insulation in heat treatment furnaces. Insulating fire bricks are designed to handle high temperatures and provide excellent thermal insulation, making them suitable for use in heat treatment furnaces where maintaining a consistent and controlled temperature is crucial.

Q: Do insulating fire bricks require any maintenance?: Insulating fire bricks, also known as refractory bricks, have been designed to endure high temperatures and offer exceptional insulation properties. One notable advantage of these bricks is their minimal maintenance requirements. These bricks are crafted from specialized materials that exhibit high heat resistance and are not easily prone to cracking or breaking, thereby reducing the need for frequent repairs or replacements. Nevertheless, similar to other materials, insulating fire bricks may accumulate dust or debris over time. To preserve their effectiveness and extend their lifespan, it is recommended to regularly clean them by employing a soft brush or vacuum cleaner to eliminate any loose particles. Additionally, it is crucial to periodically inspect the bricks for any signs of damage, such as cracks or erosion. Promptly addressing any identified issues is vital to prevent further deterioration. In summary, although insulating fire bricks do not demand extensive upkeep, regular cleaning and inspection are essential to ensure their optimal performance and longevity.

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