Product description
High-strength and wear-resistant castable refractory for boiler are mainly made of high-strength refractory raw materials such as special-grade alumina, corundum and silicon carbide as aggregates and fine powder, and added with micro powder. The material has the characteristics of good volume stability, high strength, good wear resistance, thermal shock resistance, corrosion resistance, no cracking, no peeling, etc.
Advantages of castable refractory for boiler
◆High strength,
◆Long service life
◆Good wear resistance
◆Thermal shock resistance,
Physical and chemical index of castable refractory for boiler
|
Brands |
GL-85 |
GL-70 |
GL-60 |
NT-50 |
NT-42 |
|
Al2O3 , /% ≥ |
85 |
70 |
60 |
50 |
42 |
|
CaO /% ≤ |
- |
- |
- |
- |
- |
|
Refractoriness/ ℃ ≥ |
1780 |
1720 |
1700 |
1660 |
1640 |
|
Test temperature after burning is not more than ±1%(Insulation3h)/℃ |
1500 |
1450 |
1400 |
1400 |
1350 |
|
Compressive strength (after drying at 110±5°C)/Mpa ≥ |
35 |
35 |
30 |
30 |
25 |
|
Flexural strength (after drying at 110±5°C)/Mpa ≥ |
5 |
5 |
4 |
4 |
3.5 |
Packages
Physical and chemical index of castable refractory for boiler
|
Brands |
GL-85 |
GL-70 |
GL-60 |
NT-50 |
NT-42 |
|
Al2O3 , /% ≥ |
85 |
70 |
60 |
50 |
42 |
|
CaO /% ≤ |
- |
- |
- |
- |
- |
|
Refractoriness/ ℃ ≥ |
1780 |
1720 |
1700 |
1660 |
1640 |
|
Test temperature after burning is not more than ±1%(Insulation3h)/℃ |
1500 |
1450 |
1400 |
1400 |
1350 |
|
Compressive strength (after drying at 110±5°C)/Mpa ≥ |
35 |
35 |
30 |
30 |
25 |
|
Flexural strength (after drying at 110±5°C)/Mpa ≥ |
5 |
5 |
4 |
4 |
3.5 |
