Product Description
99 90 Corundum brick high alumina refractory material for sale
White corundum brick is made of imported plate corundum and high purity electric fused corundum as the main raw materials, and is fired at high temperature in shuttler kiln through mixing, forming and drying with advanced ultrafine powder adding technology.The products have the characteristics of high refractoriness, good thermal shock stability, high temperature strength, excellent corrosion resistance, strong slag resistance, small expansion coefficient, low creep, anti-spalling and so on.
Chemical indicators
| tems | HT99 | HT98 | HT96 | HT90 |
| Al2O3 %≥ | 99 | 98 | 96 | 90 |
| Fe2O3 %≤ | 0.15 | 0.3 | 0.4 | 0.5 |
| SiO3 % ≤ | 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 °C(0.2Mpa,0.6%) | 1740 | 1740 | 1720 | 1700± |
| Heating Linear Change % | ±0.2 1600°C*2h | ±0.2 1600°C*2h±0.2 | ±0.2 1550°C*2h | ±0.2 1550°C*2h |
White corundum brick • production process
White corundum hardness is slightly higher than brown corundum, toughness is slightly lower, high purity, good self-sharpening, strong grinding ability, low calorific value, high efficiency, acid and alkali corrosion resistance, high temperature resistance and thermal stability.Made of white corundum sand abrasive tools, suitable for grinding high carbon steel, high speed steel and stainless steel and other fine grain abrasives, white corundum can also be used for precision casting and senior refractory materials.
White corundum brick has the characteristics of high refractoriness, good thermal shock stability, high high temperature strength, excellent corrosion resistance, strong slag resistance, small expansion coefficient, low creep property, anti-peeling and so on. It is suitable for the use of high temperature kiln under various atmosphere conditions.High quality high purity corundum brick is widely used in high temperature sintering of zirconia ceramics, fluorescent materials, electronic ceramics, magnetic materials, ceramic powders, gasifier in petrochemical industry, second-stage reformer for synthetic ammonia, carbon black reaction furnace and high temperature kiln furnace in glass industry, etc.The appearance size, physical and chemical indexes and service life of the products have reached or exceeded the level of similar products at home and abroad.
White corundum brick has the characteristics of high refractoriness, good thermal shock stability, high high temperature strength, excellent corrosion resistance, strong slag resistance, small expansion coefficient, low creep property, anti-peeling and so on. It is suitable for the use of high temperature kiln under various atmosphere conditions.High quality high purity corundum brick is widely used in high temperature sintering of zirconia ceramics, fluorescent materials, electronic ceramics, magnetic materials, ceramic powders, gasifier in petrochemical industry, second-stage reformer for synthetic ammonia, carbon black reaction furnace and high temperature kiln furnace in glass industry, etc.The appearance size, physical and chemical indexes and service life of the products have reached or exceeded the level of similar products at home and abroad.
Why Choose 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
Our competitive Advantage:
1.Competitive Price. Make the products competitive in your market.
2.Quick Response:We promise quick response at the very first moment when we received your request. 3.Superior Customer Service:The company provides after sales service ensuring customer’s satisfactions,we believe in Long term partnership bringing loyalty.
4.We had been on this filed for many years and we have our own research team,the prouduction process could be concrolled strictly.
5.We have developed stable customer base overseas and kept long-term cooperation.
