Carborundum Refractory Fire Brick

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Specifications

1.Passed ISO 9001;
2.57% Alumina content,or as customized;
3. Carborundum Fire Brick is widely used in iron-making.

AL₂O₃SiCC carborundum fire brick are universal materials for the lining of molten pretreatment equipments of molten iron tank, torpedo car, etc. The products are shaped by machine power by using dense bauxite clinkerand brown fused alumina as base materials and adding high quality SiC fines and high purity glake fraphite. It has the advantages of excellent slag resistance, thermal shock resistance, good resistance to mechanical erosion, abrasion resistance, etc.

Carborundum products belong to high grade refractory material,maximal use temperature is 1500°C,it has excellent thermal conductivity,heat shock stability,high load softening point and very good wear-resisting property,widely used in various industries with special requirement.

Item		Si3N4 bonded SiC brick	Sialon bonded SiC brick	Sialon bonded corundum brick
SiC, % ≥		72	70	80 (Al2O3)
Si3N4, % ≥		20	5 (N)	5 (N)
Fe2O3, % ≤		0.7	0.7	0.7
Bulk density g/cm3, ≥		2.65	2.65	3.1
Apparent porosity %,≤		16	16	16
CCS MPa, ≥		150	150	120
MOR Mpa	Room temp. ≥	42	42	12
MOR Mpa	1400°C×0.5hrs ≥	45	42	20
Refractoriness under load °C ≥ (0.2MPa, 0.6%)		1700	1700	1700
Thermal shock resistance, cycles (Water quenching at 1100°C)≥		30	30	30

Q:Are insulating fire bricks resistant to thermal conductivity?: Yes, insulating fire bricks are designed to be resistant to thermal conductivity. These bricks are made from materials with low thermal conductivity, such as lightweight refractory fibers or insulating materials like vermiculite or perlite. The purpose of insulating fire bricks is to provide thermal insulation and prevent heat transfer, making them ideal for applications where temperature control is important, such as in kilns, furnaces, or fireplaces. By reducing thermal conductivity, insulating fire bricks help to retain heat within the desired area and minimize energy loss, making them an effective choice for insulation in high-temperature environments.

Q:What is the cost of insulating fire bricks?: The cost of insulating fire bricks can vary depending on various factors such as the quantity needed, the quality of the bricks, and the supplier. On average, insulating fire bricks can range from $2 to $5 per brick. However, the price can go higher for specialty bricks or those with specific features such as higher insulation ratings or increased durability. It is always recommended to obtain quotes from multiple suppliers to compare prices and ensure the best value for money.

Q:Can insulating fire bricks be used in the construction of foundry molds?: Yes, insulating fire bricks can be used in the construction of foundry molds. Insulating fire bricks are made from lightweight materials such as clay, alumina, and silica, and are designed to have low thermal conductivity. This makes them ideal for applications that require high temperature resistance and insulation, such as foundry molds. Foundry molds are used to shape and hold molten metal during casting processes. Since molten metal is typically poured at extremely high temperatures, it is important to use materials that can withstand the heat without melting or deforming. Insulating fire bricks have a high melting point and excellent thermal stability, which makes them suitable for use in foundry molds. In addition to their high temperature resistance, insulating fire bricks also provide good insulation properties. This is important in foundry molds as it helps to control the cooling rate of the molten metal, preventing thermal shock and ensuring proper solidification. The insulation properties of insulating fire bricks can also help to reduce energy consumption and improve the overall efficiency of the foundry process. Overall, insulating fire bricks are a durable and efficient choice for constructing foundry molds. They offer high temperature resistance, excellent thermal stability, and good insulation properties, making them a reliable option for use in the demanding conditions of foundry operations.

Q:Do insulating fire bricks have a high fire resistance rating?: Yes, insulating fire bricks have a high fire resistance rating. These bricks are specifically designed to withstand high temperatures and provide excellent insulation, making them ideal for applications where fire resistance is crucial. They can withstand temperatures as high as 3000°F (1650°C), making them highly reliable in various industrial and residential settings that require protection against extreme heat.

Q:Can insulating fire bricks be used as a refractory material?: Yes, insulating fire bricks can be used as a refractory material. Insulating fire bricks are specifically designed to withstand high temperatures and thermal shock, making them suitable for applications that require heat insulation and refractory properties. They have low thermal conductivity, which helps to reduce heat loss and conserve energy. Insulating fire bricks are commonly used in various industries, including steel, glass, ceramics, and petrochemicals, where they are used as lining materials in furnaces, kilns, ovens, and other high-temperature equipment. Their ability to withstand extreme temperatures, coupled with their insulating properties, makes them an excellent choice for refractory applications.

Q:Can insulating fire bricks be used in pizza ovens or outdoor grills?: Yes, insulating fire bricks can be used in pizza ovens or outdoor grills. These bricks are designed to withstand high temperatures and provide excellent insulation, making them ideal for retaining heat and creating consistent cooking conditions in pizza ovens and grills.

Q:Can insulating fire bricks be used for insulation in oil refineries?: Yes, insulating fire bricks can be used for insulation in oil refineries. These bricks have excellent thermal insulation properties and can withstand high temperatures, making them suitable for insulation applications in oil refineries where heat is generated. They can help reduce heat loss and increase energy efficiency in the refining process.

Q:Can insulating fire bricks be used in the construction of smelting crucibles?: Yes, insulating fire bricks can be used in the construction of smelting crucibles. Insulating fire bricks are designed to withstand high temperatures and provide excellent insulation. They are commonly used in applications that require heat retention and protection, such as kilns and furnaces. Smelting crucibles, which are used to melt and refine metals, also require materials that can withstand extreme temperatures. Insulating fire bricks are an ideal choice for constructing smelting crucibles because they can help maintain a consistent temperature within the crucible and prevent heat loss. Additionally, their insulating properties can reduce energy consumption and increase the efficiency of the smelting process.

Q:Can insulating fire bricks be used in the construction of flue liners?: Yes, insulating fire bricks can be used in the construction of flue liners. Insulating fire bricks are designed to withstand high temperatures and provide excellent insulation properties. These bricks are made from lightweight materials such as vermiculite or perlite, which have low thermal conductivity. This makes them ideal for lining flues, as they can help to retain heat and improve the efficiency of the flue system. Additionally, insulating fire bricks are resistant to thermal shock and can withstand rapid temperature changes, which is important in flue applications where the temperatures can fluctuate significantly. Overall, using insulating fire bricks in the construction of flue liners can help to enhance the performance and safety of the flue system.

Q:Can insulating fire bricks be used in the construction of boilers for steam generation?: Yes, insulating fire bricks can be used in the construction of boilers for steam generation. Insulating fire bricks are designed to have low thermal conductivity, which helps to minimize heat loss and improve the overall energy efficiency of the boiler. They are commonly used in the construction of boiler walls, floors, and furnace linings as they can withstand high temperatures and provide excellent insulation properties. By using insulating fire bricks in the construction of boilers, the heat generated by burning fuel can be effectively contained and transferred to the water, resulting in efficient steam generation.

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