Zhengzhou Rongsheng Refractory Co., Ltd.
Zhengzhou Rongsheng Refractory Co., Ltd. Refractory manufacturing company.
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Standard sizing: 230 x 114 x 65 mm ,Special size and OEM Service also provide!
The size is precise, providing kinds of shapes according to customer's drawing
Product specifications
We bring forth high quality High Alumina Bricks, which is manufactured to meet the requirements of neutral refractoriness where safe working temperature is more than 1300 degree centigrade. We offer High Alumina Bricks in different specifications as per customer requirements.
Features
Mechanical strength
Excellent load-bearing properties
High temperature
Excellent resistance to spalling
Resistant to corrosion
Suitable For
Cement Rotary Kilns
Laddle Lining
Glass industries
Blast furnaces Stoves & Checkers
Electric Furnace Roof
Physical and chemical indexes
| Item/Grade | Fire clay brick | High alumina brick | ||||||
| SK-30 | SK-32 | SK-34 | SK-35 | SK-36 | SK-37 | SK-38 | SK-40 | |
| AL2O3% (≥) | 30 | 35 | 38 | 45 | 55 | 65 | 70 | 82 |
| Fe2O3% (≤) | 2.5 | 2.5 | 2 | 2 | 2 | 2 | 2 | 2 |
| Refractoriness(SK) | 30 | 32 | 34 | 35 | 36 | 37 | 38 | 40 |
| Refractoriness under load, 0.2MPa, °C (≥) | 1250 | 1300 | 1360 | 1420 | 1450 | 1480 | 1530 | 1600 |
| Apparent porosity (%) | 22-26 | 20-24 | 20-22 | 18-20 | 20-23 | 20-23 | 20-22 | 18-20 |
| Bulk density (g/cm³) | 1.9-2.0 | 1.95-2.1 | 2.1-2.2 | 2.15-2.22 | 2.25-2.4 | 2.3-2.5 | 2.4-2.6 | 2.5-2.7 |
| Cold crushing strength ,MPa (≥) | 20 | 25 | 30 | 40 | 45 | 50 | 60 | 70 |