EN
Product category|Refractory Ball
AL203: 40％-99％
Bulk Density: 0.5-3.1
Refractoriness: 1710℃-1800℃
Online Time: 7*24 hours
Refractory ball is made of industrial alumina and refractory kaolin as the main raw materials, which are made by scientific formula, forming and high temperature calcination.
Lightweight, closed hole and high temperature resistance
High strength, high hardness
Corrosion resistant
Good thermal shock stability
Ordinary refractory balls are suitable for converters and conversion furnaces in the sulfuric acid and fertilizer industries, while high-aluminum refractory balls are suitable for hot blast furnaces, heating conversion furnaces and other equipment in urea, steel and other industries.
| Item | High Alumina Refractory Ball |
| Al₂O₃ (%)≥ | 55 65 70 70-80 |
| Fe₂O₃ (%) | 2.0 1.8 1.8 1.8 |
| Refractoriness | 1750 1770 1790 1790 |
| Apparent Porosity(%) | 26 25 24 20 |
| Bulk Density(g/cm²)≥ | 2.35 2.45 2.6 2.75 |
| Cold Crushing Strength(MPa)≥ | 10 11 12 13 |
| Refractoriness Under Load(C)≥ | 1420 1450 1480 1520 |
| Items-Alumina hollow balls | Guarantee value | Guarantee value | |
| Chemical composition(%) | Al203 | 99 | 99.34 |
| Si02 | ≤0.2 | 0.15 | |
| Fe203 | ≤0.1 | 0.06 | |
| Bulk density(g/cm3) | 0.5-1.0 | 0.75 | |
| Broken rate(%) | ≤15 | 12 | |
| Refractoriness (℃) | 1800 | ||
| Particle size | φ5-0.2mm | ||
| Test standard | GB/T3044-89 | ||
| Package | Customers' requirement | ||
| Item | High alumina | Corundum Refractory Ball |
| Size(mm) | 40-80 | 40-80 |
| AL203(%) | 65 | 95 |
| Refractoriness under load(℃) | 1450 | 1650 |
| Apparent Porosity(%) | 25 | 18 |
| Bulk Density(g/cm3) | 2.3 | 3.1 |
| Cold crushing strength(Mpa） | 13 | 36 |
| Thermal shock resistance (1100°C water cooling) cycle≥ | 15 | 7 |
| Refractoriness(℃) | 1710 | 1800 |
Shengjie refractory materials’ceramic fiber products have been exported to Germany, Arabia, Saudi Arabia and other countries,which used as backing insulation for kilns,Heating equipments and provided…
Shengjie Refractory Materials provided personalized solutions and high-quality refractory bricks , achieving a mutually beneficial and successful cooperation between the two parties, which not only…
Shengjie Refractory Material supplies high-quality castables to Shuangji company and was used for cement kiln linings, iron-making furnace linings, etc. to protect equipments and structures…
Submit Request
