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.
|
|
GL-85 |
GL-70 |
GL-60 |
NT-50 |
NT-42 |
|
Al2O3 , /% Greater than or equal to |
85 |
70 |
60 |
50 |
42 |
|
|
- |
- |
- |
- |
- |
|
|
1780 |
1720 |
1700 |
1660 |
1640 |
|
Test temperature after burning is not more than ±1%(Insulation3h)/ degree |
1500 |
1450 |
1400 |
1400 |
1350 |
|
Compressive strength (after drying at 110±5 degree )/Mpa Greater than or equal to |
35 |
35 |
30 |
30 |
25 |
|
Flexural strength (after drying at 110±5 degree )/Mpa Greater than or equal to |
5 |
5 |
4 |
4 |
3.5 |
|
|
GL-85 |
GL-70 |
GL-60 |
NT-50 |
NT-42 |
|
Al2O3 , /% Greater than or equal to |
85 |
70 |
60 |
50 |
42 |
|
|
- |
- |
- |
- |
- |
|
|
1780 |
1720 |
1700 |
1660 |
1640 |
|
Test temperature after burning is not more than ±1%(Insulation3h)/ degree |
1500 |
1450 |
1400 |
1400 |
1350 |
|
Compressive strength (after drying at 110±5 degree )/Mpa Greater than or equal to |
35 |
35 |
30 |
30 |
25 |
|
Flexural strength (after drying at 110±5 degree )/Mpa Greater than or equal to |
5 |
5 |
4 |
4 |
3.5 |
