JM 23 Mullite Insulation Brick with High Strength for Gas Furnace
Description:
High temperature mullite insulation bricks for sale are made from
good quality and superior raw materials, with strictly classified
fillings according to their grades. These fillings can form a
uniform pore structure after burnt during the process of
manufacture. Each grade of products has unique design to meet
different thermal, physical and chemical demands.
Features:
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.
Application:
Mullite brick can be in direct contact with the flame,this
insulating brick can be used as linings or as thermal preservation
layers in various industrial furnaces and kilns in metallurgical
industry, ceramic industry, chemical industry, machinery industry,
such as blast furnace, hot blast stoves ,electric arc furnace,
cement kiln,melting furnace, ignition furnace, flue, refining
equipment, heating equipment and piping, regeneration device, gas
furnace, soaking furnace, annealing furnace, heat reaction chamber
and other thermal industrial equipment.
Phyical and Chemical Index:
| Bulk density g/cm³ ≤ | 0.6 | 0.8 | 1 | 0.6 | 0.8 | 1 | 1 | 1.2 |
| Cold Crushing Strength Mpa ≥ | 1.5 | 2.5 | 4.2 | 1.5 | 3.2 | 4 | 4 | 5 |
| Thermal stability 1100°C (Air Cooling) % | 10 | 20 | 20 | 10 | 20 | 20 | 20 | 20 |
| Reheating linear change | 1300x12 | 1300x12 | 1300x12 | 1400x12 | 1400x12 | 1400x12 | 1500x12 | 1500x12 |
| Thermal conductivity 350±25°C (W/m.k) ≤ | 0.2 | 0.23 | 0.33 | 0.2 | 0.25 | 0.33 | 0.35 | 0.4 |
| Al2O3 % ≥ | 48 | 49 | 50 | 55 | 57 | 57 | 60 | 67 |
| Fe2O3 % ≥ | 0.9 | 0.9 | 0.9 | 0.8 | 0.8 | 0.8 | 0.7 | 0.6 |
Product Pictures:
