Mullite Insulating White refractory fire Bricks For Furnace
Insulation Lining
1. Description
The products have passed the ISO international certified,are made
of high pure materials,fired at high temperature by advanced
technology,with the advantages of high strength, high compression
resistance,good thermal shock resistance,good perfoemance in high
temperature,good thermal conductivity,good erosion resistance and
so on.Widely be used for linings of furnace in industries.
1. The products are made from high purity materials as main
material by unique techniques.
2. Have a lot of advantages such as stable volume, excellent
thermal stability, high intensity, low thermal conductivity, etc.
3. They are an ideal kind of energy-conserving products, which can
be widely used as linings or as thermal preservation layers in
various industrial furnaces and kilns in metallurgical industry,
ceramic industry, chemical industry, machinery industry, etc.
Recommended service temperature: less than 1600°C.
2.Features
• Excellent compression strength
• Resistance to acid and alkali.
• Excellent heat stability.
• Low heat storage, low thermal conductivity, high hot compressive
strength
• Resistance to High temperature, Resistance to erosion, resistance
to abrasion
3. Application
Cracking furnace
Conversion furnace
Heating equipment
Refining equipment
Reproduction equipment
Hot blast stove
4. Specification
| Description | Grade 23 | Grade 26 | Grade 28 | Grade 30 |
| Classification Temperature | 1300C/2372F | 1400C/2552F | 1500C/2732F | 1550C/2822F |
| Density(kg/m3) | 600 | 800 | 900 | 1000 |
| Cold Crushing Strength (MPa) | 1.2 | 1.8 | 2.5 | 3.3 |
| Modulus of Rupture(MPa) | 1.0 | 1.7 | 2.3 | 3.1 |
| Permanent Linear Change (%)x24hrs | ≤0.6 | ≤0.6 | ≤0.8 | ≤0.9 |
| Thermal Expansion (%)1000C | 0.5 | 0.52 | 0.52 | 0.53 |
| Thermal Conductivity (W/m.k) | 350C | 0.18 | 0.25 | 0.33 | 0.38 |
| 400C | 0.20 | 0.29 | 0.35 | 0.40 |
| 600C | 0.24 | 0.32 | 0.37 | 0.42 |
| Chemical Composition (%) | Al2O3 | 42 | 56 | 67 | 73 |
| SiO2 | 55 | 41 | 30 | 24 |
| Fe2O3 | ≤1 | ≤0.8 | ≤0.7 | ≤0.7 |
| K2O+Na2O | 1.1 | 1.7 | 1.7 | 1.7 |
5. Pacakge
1. The Mullite Insulating Fire Brick will be packed as the standard
of exporting or packed on wooden pallet with three layers
water-proof shrink film and tightened with plastic/steel
bandages,when in the transportation process,we should pay attention
to moisture-proof and light handling.
2. The packing of Refractory Brick will accept customer's
requirement if any.
3. Delivery within 10-15 working days after your payment.
4. Fast delievery accepted by customers.
