SK-34 refractory brick

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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 insulation blankets?: No, insulating fire bricks cannot be used in high-temperature insulation blankets. Insulating fire bricks are solid and dense bricks made of refractory materials that are designed to provide excellent thermal insulation and structural support in high-temperature applications such as furnaces and kilns. On the other hand, high-temperature insulation blankets are flexible and lightweight blankets made of ceramic fibers or other refractory materials that are specifically designed for insulation purposes. These blankets are able to withstand extremely high temperatures while providing excellent thermal insulation. Therefore, the two products serve different purposes and cannot be used interchangeably.

Q:Can insulating fire bricks be used in hydrogen furnaces?: Yes, insulating fire bricks can be used in hydrogen furnaces. These bricks are specifically designed to withstand high temperatures and provide excellent thermal insulation, making them suitable for use in hydrogen furnaces where extreme heat is involved.

Q:Can insulating fire bricks be used to build pizza ovens?: Indeed, pizza ovens can be constructed using insulating fire bricks. These bricks are specifically designed to endure high temperatures and offer exceptional insulation, rendering them a suitable choice for pizza oven construction. With their low thermal conductivity, these bricks aid in retaining and evenly distributing heat throughout the oven. The insulating qualities of the bricks facilitate the attainment and maintenance of the desired temperature, ensuring efficient and consistent pizza cooking. Moreover, the lightweight nature of insulating fire bricks simplifies handling and installation during the construction process. All in all, due to their capacity to withstand high temperatures and provide efficient insulation, insulating fire bricks prove to be an excellent option for pizza oven construction.

Q:Are insulating fire bricks resistant to insects and rodents?: Insulating fire bricks do not have a specific design to resist insects and rodents. Although these bricks are mainly utilized for their exceptional thermal insulation properties in high-temperature settings like furnaces and kilns, they lack inherent resistance against pests. In case you have worries about insects or rodents, it is advisable to incorporate supplementary pest control methods such as sealing gaps or cracks and employing suitable pest deterrents.

Q:Can insulating fire bricks be used in the construction of BBQ pits?: Yes, insulating fire bricks can be used in the construction of BBQ pits. These bricks are designed to withstand high temperatures and provide excellent insulation, making them ideal for creating a heat-resistant structure. They help to retain and distribute heat evenly, which is crucial for achieving optimal cooking conditions in a BBQ pit.

Q:Do insulating fire bricks provide sound insulation as well?: No, insulating fire bricks primarily provide thermal insulation, not sound insulation. Insulating fire bricks are designed to withstand high temperatures and are commonly used in applications such as kilns, furnaces, and fireplaces to prevent heat loss. While they may offer some degree of sound absorption due to their dense composition, they are not specifically designed or effective in reducing sound transmission. If sound insulation is the primary concern, other materials such as acoustic insulation panels or soundproofing materials would be more suitable.

Q:Can insulating fire bricks be used for high-temperature applications?: Yes, insulating fire bricks can be used for high-temperature applications. These bricks are designed to withstand extremely high temperatures and provide excellent insulation, making them suitable for use in industries such as metallurgy, glassmaking, and kiln construction. They can effectively retain heat, minimize heat loss, and provide thermal protection in high-temperature environments.

Q:How do insulating fire bricks compare to other types of refractory materials?: Insulating fire bricks have a higher insulating capability compared to other types of refractory materials. They are lighter in weight, have lower thermal conductivity, and provide better energy efficiency. However, they may have slightly lower strength and durability compared to dense fire bricks or other refractory materials.

Q:Are insulating fire bricks suitable for insulation in steam boilers?: Yes, insulating fire bricks are suitable for insulation in steam boilers. Insulating fire bricks are made from lightweight materials that have high insulating properties, such as alumina or silica. They are designed to withstand high temperatures and thermal shocks, making them ideal for use in steam boilers where there is constant exposure to heat. Insulating fire bricks have low thermal conductivity, which means they can effectively prevent heat transfer, reducing energy loss and increasing the efficiency of steam boilers. Their high insulation properties also help to maintain consistent temperatures within the boiler, preventing heat fluctuations and minimizing the risk of thermal stress and damage. Furthermore, insulating fire bricks are resistant to corrosion and chemical attacks, ensuring their durability and longevity in steam boiler applications. They are also easy to install and can be cut into different shapes and sizes to fit the specific requirements of the boiler. Overall, insulating fire bricks are an excellent choice for insulation in steam boilers due to their ability to withstand high temperatures, low thermal conductivity, and resistance to corrosion. They help in reducing energy loss, improving efficiency, and ensuring the longevity of the boiler.

Q:Do insulating fire bricks expand and contract with temperature changes?: Yes, insulating fire bricks do expand and contract with temperature changes.

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