JM-28 Insulation Refractory Fire Brick Stable Volume Heat Resistant Bricks

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Classification Temperature: 1540 Bulk Density (g/cm3): 0.85-1
Permanent Linear Change (CT-30oCX24h)%: 0.4-0.9

Description of light weight insulation refractory bricks

This series of products are made from high purity materials by unique technics, so they have a lot of advantages such as stable volume, excellent thermal stability, high intensity, and low thermal conductivity. They are an ideal kind of energy-conserving products, which can be widely used as linings or as thermal preservations layes in various industrial furnaces and kilns in metallurgical industry, ceramic industry, chemical industry and machinery industry.

 

Characteristics of light weight insulation refractory bricks

1) Stable volume

2) Low thermal conductivity

3) Excellent heat insulation

4) High intensity for pressure

5) Good thermal shock stability

 

Application of light weight insulation refractory bricks

1) Glass industries iron & steel industries;

2) Ceramics industries non-ferrous metals industries;

3) Electrolytic Aluminum industries power generation industries;

4) Heat surface fireproof lining other fire-proof back lining.

 

Properties of light weight insulation refractory bricks

Item JM-23 JM -26 JM -28 JM -30 JM -32
Classification temperature (oC) 1260 1430 1540 1650 1760
Bulk density (g/cm3) 0.8-1 0.8-1 0.8-1 0.8-1 0.8-1
Crushing strength (Mpa) 3.5-4 3.5-4 3.5-4 3.5-4 3.5-4
Modulus of rupture (Mpa) 0.9 1.4 1.6 2.1 2.1
Permanent linear change (CT-30oCX24h)% 0.5 0.4 0.5 0.9 0.9
Reversible thermal expansion at 1100 0.5 0.7 0.8 0.9 1.1
Thermal conductivity (W/m.k) 400oC 0.14 0.27 0.32 0.41 0.49
600oC 0.16 0.29 0.34 0.43 0.5
800oC 0.18 0.31 0.36 0.44 0.51
1000oC 0.2 0.33 0.38 0.45 0.53
1200oC 0.35 0.41 0.47 0.56
Chemical Analysis (%) Al2O3 37 58 67 73 77
Fe2O3 0.7 0.7 0.6 0.5 0.4
standard size 230x114x75/65mm

 

JM-28 Insulation Refractory Fire Brick Stable Volume Heat Resistant BricksJM-28 Insulation Refractory Fire Brick Stable Volume Heat Resistant Bricks

 

 

 

 

 

 

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