Description
Lightweight castable refractory has high strength, small temperature line variation, low thermal conductivity, high service temperature, convenient construction, and can be cast, sprayed, or rammed. They are widely used in various industrial furnaces, such as heating furnaces, annealing furnaces in the steel industry, heat treatment furnaces in mechanical industry, thermal equipment in petrochemical, non-ferrous, and building materials sectors, as well as insulation linings and chimney linings.
Parameter
| Item | D-LW 0.5 | D-LW 0.8 | D-LW 1.0 | D-LW 1.3 | D-LW 1.5 | D-LW 1.8 | D-LW 2.0 |
|
|---|---|---|---|---|---|---|---|---|
| Bulk density | g/cm3 | 0.5 | 0.8 | 1.0 | 1.3 | 1.5 | 1.8 | |
| Crushing strength, Mpa | 110℃×16h | ≥2 | ≥2.8 | ≥4.5 | ≥8 | ≥20 | ≥20 | ≥24 |
| 1000℃×3h | ≥2 | ≥2.8 | ≥6 | ≥11 | ≥40 | ≥40 | ≥48 | |
| Permanent linear change, % | 1000℃×3h | -1.5 | -0.48 | -0.32 | -0.24 | -0.35 | -0.31 | -0.23 |
| Thermal conductivity, W/(m·K) | 700℃ | 0.132 | 0.232 | 0.305 | 0.367 | 0.634 | 0.644 | 0.644 |
| 1000℃ | 0.167 | 0.227 | 0.351 | 0.400 | 0.716 | 0.726 | 0.729 | |
| Max working temperature | 1000 | 1200 | 1250 | 1300 | 1300 | 1300 | 1300 |
