Insulating Fire Brick 65% Al2O3 min High Alumina

Insulating Fire Brick 65% Al2O3 min High Alumina System 1

Insulating Fire Brick 65% Al2O3 min High Alumina System 2

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Insulating Fire Brick 65% Al2O3 min High Alumina

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 1 m.t.

Supply Capability:: 20000 m.t./month

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Insulating Fire Brick 65% Al2O3 Min High Alumina

Description of Insulating Fire Brick

Insulating Fire Brick 65% Al2O3 min High Alumina 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, Insulating Fire Brick 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.

Features of Insulating Fire Brick

1. Lower content of iron, alkaline and impurities, good high temperature properties.
2. Homogeneous structure, light weight, energy saving because lower heat storage in the furnace during cooling cycles.
3. High strength, good thermal shock resistance under high temperature.
4. Precise sizes due to grinding and shaping after firing, which meets the requirement of construction.

Specifications for Insulating Fire Brick

		SSW-23	SSW-25	SSW-26	SSW-28	SSW-30	SSW-32
ASTM C155-97 °C Classification Temperature °F		1260 2300	1350 2500	1430 2600	1540 2600	1650 3000	1760 3200
ASTM C134-95 g/cm³ Bulk Density ib/ft³		0.60 37	0.80 50	0.80 50	0.90 56	1.03 64	1.25 78
ASTM C133-97 Mpa Cold Crushing Strength ib/in²		1.2 170	2.0 284	2.0 284	2.6 370	2.8 398	3.4 484
ASTM C133-97 Mpa Modulus of rupture ib/in²		0.9 128	1.2 170	1.5 218	1.6 232	1.7 247	2.0 290
ASTM C210-95 % Permanent Liner Change °C*hrs		0 1230*24	-0.5 1350*24	-0.5 1400*24	-0.8 1510*24	-0.9 1620*24	-0.9 1730*24
ASTM C182-88 Thermal Conductivity (W/m.k)	400°C	0.17	0.24	0.24	0.30	0.40	0.49
	600°C	0.19	0.28	0.27	0.32	0.42	0.50
	800°C	0.22	0.32	0.30	0.35	0.44	0.51
	1000°C	0.25	0.37	0.32	0.38	0.45	0.53
	1200°C	---	---	0.35	0.39	0.47	0.55
Chemical Analysis of Insulating Fire Brick
Al2O3 %		45	50	55	65	72	76
Fe2O3 %		0.9	0.8	0.8	0.5	0.4	0.3
SiO2 %		50	45	42	32	26	22
CaO+MgO %		0.7	0.6	0.3	0.2	0.3	0.2
K2O+Na2O %		1.3	1.0	1.0	0.8	0.2	0.1

Images of Insulating Fire Brick

Insulating Fire Brick 65% Al2O3 min High Alumina

Applications of Insulating Fire Brick

1. Building materials for blast furnace

2. Building materials for hot-blast stove

3. Building materials for coke oven

4. Building materials for steel making furnace

5. For construction material in steel industry

6. For ladle

FAQ of Insulating Fire Brick

1. Which products do you have?

We have all kinds of refractory brick, castable, mortar, cement, ceramic fiber products, etc.
Or you could browse our products to choose what you need.

2. Can you give me a general idea of the specification and technical data of your products?

CNBM offer a range of refractory and insulation products. We provide refractory bricks, monolithic refractories as well as ceramic fiber products. And On your given shapes, drawings or description, we are producing refractories with all sizes and shapes, resistant to temperature from 800 °C till 1800 °C, using various machines and equipments for cutting, grinding, drilling, polishing, shaping processes.
Every refractory product by CNBM is of superior quality. Lesser refractory products can not approach. CNBM utilizes proprietary testing methods, testing for chemical content, density, apparent porosity, cold crush strength and modulus of rapture. With stringent quality control, you can count on CNBM products to exceed refractory industry standards and your expectations.

3. Can you give me a brief introduction of the application of your products?

We are mainly specializing in the refractory materials in iron and steel, cement, glass, ceramics, petrochemical, electric power Industry, etc.

4. If I need your offer, what information do you need?

In order to choose suitable products, it will be appreciated to provide us the information, such us specification, technical data, order quantity, products application etc.
If any question, please contact us freely.

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. Insulating fire bricks are designed to withstand high temperatures and have excellent heat resistance properties, making them ideal for use in BBQ pits. These bricks help trap and distribute heat evenly, resulting in more efficient cooking and a better BBQ experience. Additionally, insulating fire bricks also help to reduce heat loss, ensuring that the BBQ pit retains and maintains heat for a longer period. Overall, using insulating fire bricks in the construction of BBQ pits can greatly enhance the performance and longevity of the pit.

Q: How long do insulating fire bricks last?: Insulating fire bricks have been designed to endure high temperatures and offer exceptional insulation properties. The duration of their lifespan can differ based on various factors, such as the quality of the bricks, the temperature they encounter, and the level of maintenance they receive. Typically, insulating fire bricks can endure for numerous years, commonly ranging from 10 to 20 years or even more. Nevertheless, it is crucial to acknowledge that their lifespan may be notably shortened if they are frequently exposed to extreme temperatures or thermal shock. The lifespan of insulating fire bricks can be prolonged through regular maintenance and appropriate usage. This encompasses periodic cleansing to eliminate any debris or accumulation that could impact their performance. Additionally, it is vital to avoid abrupt temperature fluctuations or excessive stress on the bricks, as this can result in cracking or damage. In conclusion, the longevity of insulating fire bricks can vary. However, by practicing proper care and maintenance, they can offer dependable insulation for numerous years in high-temperature scenarios.

Q: Are insulating fire bricks resistant to spalling?: Insulating fire bricks exhibit resistance to spalling. These bricks are specially engineered to endure elevated temperatures and thermal shock, rendering them highly immune to spalling. Spalling indicates the fracturing and fracturing of bricks owing to exposure to extreme heat. Composed of superior refractory materials with low thermal conductivity, insulating fire bricks restrict heat transmission and diminish spalling hazards. Moreover, these bricks boast a remarkable melting point, rendering them excellently suited for applications demanding high temperatures. Consequently, insulating fire bricks find widespread application in furnaces, kilns, and other environments characterized by elevated temperatures, where spalling poses a significant concern.

Q: Are insulating fire bricks resistant to alkali attack?: Insulating fire bricks generally possess resistance to alkali attack. They are composed of high-temperature refractory materials and are engineered to endure extreme temperatures and chemical surroundings. Alkalis typically corrode and deteriorate certain substances, but insulating fire bricks are specifically devised to withstand this form of chemical assault. They possess limited porosity and a compact structure, thereby thwarting alkalis from infiltrating the brick's surface. Furthermore, the refractory materials employed in these bricks possess a high melting point and exhibit chemical inertness, rendering them ideal for situations where exposure to alkali is a concern. However, it is crucial to acknowledge that the resistance of insulating fire bricks to alkali attack may vary depending on the brick's composition, manufacturing process, as well as the concentration and duration of alkali exposure. Thus, it is always advisable to consult the manufacturer or supplier for comprehensive details regarding the alkali resistance of their specific insulating fire bricks.

Q: Is the building built of cement hollow board safe?: The country stipulates that hollow slab buildings can be built at most 7 floors, and of course there are also eleven stories, but these are illegal constructions. More than 7 layers, in the existing architectural design, according to the cement hollow board bearing, there is a security risk;

Q: Are insulating fire bricks resistant to salt attack?: Yes, insulating fire bricks are generally resistant to salt attack. They have a high resistance to chemical reactions and can withstand exposure to salts without significant deterioration.

Q: Are insulating fire bricks resistant to moisture absorption?: Yes, insulating fire bricks are resistant to moisture absorption. These bricks are specifically designed to have low porosity, which helps to prevent the absorption of moisture. The manufacturing process involves the use of high-quality refractory materials that are able to withstand high temperatures and resist the effects of moisture. This makes insulating fire bricks an ideal choice for applications where moisture resistance is required, such as in kilns, furnaces, and other high-temperature environments.

Q: Are insulating fire bricks resistant to reducing atmospheres?: Insulating fire bricks exhibit resistance to reducing atmospheres. These bricks have been specifically engineered to endure elevated temperatures and harsh circumstances, including exposure to reducing atmospheres. They are crafted from top-notch refractory materials that possess the capability to withstand the detrimental effects of reducing atmospheres, which may encompass gases like carbon monoxide or hydrogen. Due to their low thermal conductivity and superior insulation properties, insulating fire bricks prove to be exceptional in scenarios where reducing atmospheres are present. They efficiently shield the surrounding areas from heat transfer and safeguard the structure against potential harm. Furthermore, these bricks boast remarkable mechanical strength and outstanding resistance to thermal shock, enabling them to retain their integrity even in the face of challenging conditions. In conclusion, the durability of insulating fire bricks coupled with their capacity to endure high temperatures and harsh environments confirms their resistance to reducing atmospheres.

Q: Are there any differences between insulating bricks and refractory bricks?: Heat preservation brick is to emphasize its heat preservation performance generally, not paying much attention to its refractoriness, but refractory brick is exactly the opposite. Different locations will use different materials, I hope we can choose carefully.

Q: What is the exterior wall insulation material made of graphite?: Graphite is polystyrene board, polyurethane graphite plate, from the point of view of building the acceptance specification in the use process, the core index of insulation material is the heat transfer coefficient and safety, by now a large number of glazed hollow bead slurry from the actual situation it seems difficult to ensure the quality of construction materials should be on site workers slurry mixing, finished product the quality gap made out of very large.

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