Product Description
High temperature refractory corundum brick
High temperature refractory corundum brick prepared by calcining fine pure alumina (sometimes adding a small amount of MgO additive to improve its crystal structure), pressed into a green body and calcined at the high temperature above 1850 C.
Characteristics & Advantages of High temperature refractory corundum brick:
1. Has a good sintering activity, can improve the degree of rigidity of corundum brick;
2. Corundum corundum corundum brick bulk density is high, low porosity;
3. Has a high room temperature compressive strength, room temperature flexural strength and high temperature bending strength;
4. The best wear resistance;
5. Anti-coal gasification slag and residue residue erosion and permeability performance is better than pure fused white corundum brick;
6. As an aggregate can improve the thermal shock stability of corundum brick;
Physical & Chemical Index:
| Items | Index |
| Al2O3,% ≥ | 99 | 98 | 96 | 90 |
| Fe2O3,% ≤ | 0.15 | 0.3 | 0.4 | 0.5 |
| SiO2,% ≤ | 0.3 | 0.35 | 0.38 | 0.4 |
| Bulk Density,g/cm3 ≥ | 3.2 | 3.2 | 3.1 | 3 |
| Apparent Porosity,% ≤ | 18 | 20 | 20 | 20 |
| Cold Breaking Strength,Mpa | 90 | 90 | 80 | 80 |
| Refractoriness Under Load,ºC(0.2Mpa,0.6%) | 1740 | 1740 | 1720 | 1700 |
| Heating Linear Change,% | ±0.2
1600ºC*2h | ±0.2
1600ºC*2h | ±0.2
1550ºC*2h | ±0.3
1550ºC*2h |
Application of High temperature refractory corundum brick:
1.Widely used as linings in decomposing furnaces for petroleum and chemical industry
2.as well as chemical fertilizer industry.
3.They also used as high temperature kiln linings and furniture's in metallurgical industry.
Packaging & Shipping
Packing details:
High temperature refractory corundum brick packaged with fumigated wooden pallet, using paper or non-woven fabrics between layers separated,plastic shrink film protected outside.finally using straps. Or as your requirements.
Shipping:
By vessel or train from Chinese ports.
Our Services
1.Timely response,
Timely response to your inquiry, multiple choice recommendations based on your demand,quickly respond mails and provide solutions.
2.Free sample
Sample and trial order are accepted for the quality evaluation
3.Strict quality control
Arrange production on time and control quality strictly.
4.Shorter delivery time.
Book the earliest vessel or plane to guarantee the delivery time.
5.Professional Services
Provide all the detailed news and pictures from order to delivery;offer relative export documents and original certificate if needed;warm and considerable after-sale service. ]
About Us
1. Strong professional:
Our company has thirty years producing experience in refractory products. Our manager will supervise on a various refractorys production materials, process control, quality supervision and package delivery, and ensure the products are 100% qualified.
2.Annual supply:
Our company has passed ISO9001 quality management system certification and SGS certification. And the annual supply of shaped and unshaped refractory product is 28, 800-35, 000 tons.
3.Export experiences:
Now we have gained a global sales network reaching Taiwan, Russia, Korea, Vietnam, Pakistan, Bulgaria, French, India, Egypt,Congo, Angola, South Africa, and so on.
4. Production equipment:
Production and testing equipments are new, complete and automated or semi- automated. Such modern facilities and equipments have provided the fine technical guarantee for the production and testing.
5. Testing equipment:
Our company's testing equipments as follows:
High Temperature RUL Tester
Bulk Density Tester
The Pressure Tester
Refractoriness Tester
