45%-65% High Alumina Castable Refractory Castable Material High Compressive Strength
Refractory Castable
INTRODUCTION
High aluminum castable is high aluminum aggregate with AL2O3 content greater than 75% as particle raw materials, combined with high aluminum powder and admixture composed of the overall aluminum content > 55% of the amorphous refractory castable, high aluminum castable after the initial solidification, standard curing to 28d, compressive strength up to 40~60MPa. It is characterized by slow hydration rate, high late strength and high refractoriness.
FEATURES
1. High refractoriness under load；
2. High compressive strength；
3. Good abrasive resistance ；
PHYSICAL AND CHEMICAL INDICATORS
|
Item |
Unit |
High Strength Mullite Castable |
High Alumina High Strength Castable |
High Strength Alkali Resistance Castable |
||
|
Chemical composition |
Al2O3 |
% |
≥65 |
≥65 |
≥45 |
|
|
SiO2+SiC |
% |
≤30 |
≤30 |
≥50 |
||
|
Bulk Density |
g/cm3 |
≥2.65 |
≥2.50 |
≥2.20 |
||
|
Cold Crushing Strength |
110℃*24h |
MPa |
≥90 |
≥80 |
≥50 |
|
|
1100℃*3h |
MPa |
≥100 |
≥80 |
≥60 |
||
|
Modulus of Rupture |
110℃*24h |
MPa |
≥9 |
≥8 |
≥5 |
|
|
1100℃*3h |
MPa |
≥12 |
≥10 |
≥6 |
||
|
Linear Change after Firing |
% |
1200*3h ±0.3 |
1200*3h ±0.4 |
1200*3h ±0.5 |
||
PRODUCT PICTURE
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.