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Zhengzhou Rongsheng Kiln Refractory Co., Ltd.
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Lightweight Low Density Mullite Insulating Fire Brick For Ceramic Tunnel Kiln

Zhengzhou Rongsheng Kiln Refractory Co., Ltd.
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Lightweight Low Density Mullite Insulating Fire Brick For Ceramic Tunnel Kiln

Brand Name : RS
Model Number : JM28
Certification : ISO, CE
Place of Origin : CHINA
MOQ : 1 Ton
Price : 100usd-500usd
Payment Terms : T/T, Western Union, L/C, MoneyGram
Supply Ability : 2000 MT/Month
Delivery Time : 15 days
Packaging Details : acked on wooden pallets, with water-proof cover, and tightened with plastic/steel bandages
Shape : Brick
Material : Alumina Cement
Al2O3 Content (%) : 70%
Refractoriness : 1790
Cold crushing strength (MPa) : 90
Bulk density(g/m³) : 2.6
Apparent Porosity : 18
Rervice Temperature : 1550
Size : Customized
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Lightweight Low Density Mullite Insulating Fire Brick For Ceramic Tunnel Kiln

Characteristics Of Mullite and Corundum Mullite Bricks:

USEC the high quality synthetic mullite, high purity corundum as the main raw material,adding special additive, via high pressure molding, the high temperature burn becomes , the product has soft, high porosity Hollywood,low thermal shock performance is good, wear-resisting performance is good wait for a characteristic.Can be widely used in steel, no-ferrous metal smelting furnace,bolier and wastes incinerator.

Applications For High Alumina Refractory Brick :

1. Iron making furnacesand glass kiln

2. Ceramic tunnel kiln

3. Cement kiln and teel furnaces

Physical And Chemical Indicators For Mullite and corundum mullite Brick:



Max Temperature ( C)1260146015401700
Bulk Density (g/cm3)0.55-0.600.80.891.03
Cold Crushing Strength (Mpa)
Modulus of Rupture (Mpa)

Reheating Linear Change (%)

CT -30 °CX 8H

1230 °C


1400 °C


1510 °C


1620 °C


Thermal Expansion

1100 °C( % )





Thermal conductivity (W/m.k )400 °C0.140.270.320.41
600 °C0.160.290.340.43
800 °C0.180.310.360.44
1000 °C0.200.330.380.45
Al2O3 %37506472
Fe2O3 %

Product Photos For Different Type:

Packaging & Shipping:

The bricks are packed on wooden pallet with papers in each layer and PP film wrapped outside of the whole pallet.

Company Information:

Zhengzhou Rongsheng Refractory Material Co., Ltd. is located in the hinterland of Central Plains, at the foot of Songshan Mountain, and adjacent to Zhengshao Highway, Longhai and Jingguang railways. The convenient transportation, abundant resources and high quality minerals provide favorable conditions for the production of refractory materials.
Established in the early nineties of twenty century, with continuous innovation and development, now it is a comprehensive enterprise in refractory material sindutry, covering metallurgy, building materials, electric power, chemical industry etc.
Our main products: refractory material for industrial furnaces, such as high-alumina brick, clay brick, silicon brick, high-strength diatomite brick, light weight insulation brick, low iron mullite brick, etc;anti-stripping alumina brick,alkali proof brick,phosphate brick for cement industry; For the industrial furnace and power boiler, we can provide various series of abrasive bricks,corundum brick, mullite brick, wear resistant castable, corundum castable , high strength low cement castable, impervious material,plastick refractory, etc. Our products are popular in the whole country and have been exported to India, Iran.etc.
Rong Sheng company adhering to the " integrity,innovation, hard work" and business philosophy,the " people-oriented" as the cornerstone of enterprise development, to " the pursuit of excellence" as the core values of the enterprise, will create " Rongsheng Brand" as a corporate strategic objectives.and product types rich scientific management processes, improve customer information management system, timely, efficient, to provide satisfactory service to our users.


1. Are you a manufacture or trading company ?

Factory+ trade(mainly factories, at the same time, we operates other related products)

2. Can we visit your factory ?

Sure,welcome at any time, seeing is believing.

3. Is your company accept customization ?

We have own factory and excellent technical team, and we accept OEM service

4. What’s the MOQ of trial order ?

No limit, we can offer the best suggestions and solutions according to your condition.

5. Will your company supply samples ?

Yes, we do. The shipping charges should be undertaken by customer.

Product Tags:

high density brick


thermal brick

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