Product Description:
Lightweight firebrick has the characteristics of low density, high porosity, low thermal conductivity, good thermal insulation and certain compressive strength, it is widely used in heat treatment equipment.Product Features:
1, Lightweight firebrick has large porosity and loose structure, so it cannot be used in direct contact with slag and liquid metal; 2, Because of low mechanical strength, it can not be used for load-bearing structure; 3, Due to its poor wear resistance, it is not suitable for contact with the fireface and wear parts.Application:
Lightweight insulation bricks do not allow direct contact with flame, high temperature melts and are easily eroded in a chemical atmosphere. It is widely used in high temperature masonry of industrial kilns and thermal equipment.| Light-weight insulation bricks | ||||
| Item | NG-0.6 | NG-0.8 | NG-1.0 | |
| Refractoriness, ℃ | 1200 | 1280 | 1300 | |
| Chemical composition | Al2O3, % | 40 | 42 | 42 |
| Fe2O3, % | 2.5 | 2 | 2 | |
| Linear rate of change, % | ℃*12h | 1300 | 1350 | 1350 |
| ≤ % | 0.5 | 0.5 | 0.3 | |
| Thermal conductivity, (w/m.k) | at 350±25℃ | 0.25 | 0.35 | 0.5 |
| Bulk density, g/cm3 | 0.6 | 0.8 | 1 | |
| Cold crushing strength, MPa | 2 | 2.5 | 3.4 | |
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