55%AL2O3High Alumina Brick Refractory Brick
The Description:
High aluminum firebrick, that is, an aluminum silicate refractory with an alumina content of more than 48%. It is made of alumina or other raw materials with high alumina content by molding and calcination. High thermal stability, refractories above 1770ºC. Good slag resistance.
The Physical and Chemcial Index of 55%AL2O3High Alumina Brick Refractory Brick
| Items |
GL-65 |
GL-55 |
GL-48 |
| Al2O3 % ≥ |
65 |
55 |
48 |
| Fe2O3 % ≤ |
2.0 |
2.0 |
2.0 |
| Refractoriness ºC ≥ |
1800 |
1780 |
1760 |
| RUL ºC ≥ |
1500 |
1480 |
1450 |
| % P.L.C 1450ºC×2h |
0-0.2 |
0-0.2 |
0-0.2 |
| Apparent porosity % ≤ |
19 |
19 |
18 |
| Cold crushing strength Mpa ≥ |
58.5 |
49 |
49 |
Product feature:
One of the important working properties of high alumina firebrick is the structural strength at high temperature, which is usually assessed by the load softening deformation temperature. The high temperature creep is also measured to reflect the high temperature structural strength. The test results show that the load softening temperature increases with the increase of Al2O3 content.
For high aluminum refractory bricks with Al2O3 content below 70%, the load softening temperature depends on the quantity ratio between the crystalline phase and the liquid phase of mullite, and increases with the amount of mullite. The quantity and properties of liquid phase have obvious influence on the softening temperature under load. Therefore, reducing the content of impurities in raw materials is conducive to improving the load softening temperature and high temperature creep.
Why choose us?
Zhengzhou Kaiyuan Refractories Co., Ltd is a manufacturer of silicon-aluminum refractory (fireclay brick, high alumina brick, silica brick, mullite brick, corundum brick, insulation brick, castable, mortar) for coke oven, blast furnace, hot blast stove, heating furnace, anode baking furnace, boilers and other industrial furnaces for 20 years located in Henan, China.
Our total annual production capacity is about 100,000 tons of dense-shaped refractory product, and 100,000 tons of monolithic refractory product.
We have three tunnel kilns for silicon-aluminum dense bricks and one new plant for the monolithic refractory.
We're sure our custom-made products and professional services will bring you a stable quality supply and more profit.
Our Laboratory and R&D Center
We have test equipment for the following items:
chemical %
bulk density
apparent porosity
cold crushing strength
modulus of rupture
refractoriness under load
creep
thermal expansion
Reheat linear change
thermal shock resistance
thermal conductivity
Contract Kiln Construction
FAQ
1. Are you a Manufacturer or trader?
A: We are manufacturer and our plant is located in Xinmi city, Henan, China
2. Can we visit your company?
A: You are warmly welcome to visit our company at anytime, you'll not regret of the visiting.
3. Do you accept OEM?
A: Yes, we do OEM.
4. What's the MOQ of trial order?
A: We care about all the potential customers and take all the trails orders.
5. What is the payment term?
A: TT, LC, DP, DA.
6. How long is the delivery time?
A: Usually within 35 days after down payment.
7. Do you accept third party inspection ?
A: Yes for sure, we accept the third party inspection before delivery.
8. What is your after-sell service?
A: The rejected goods can be replaced or we can make compensation for it. We can send technical engineers to the end user for technical issue.
9.What is your company's certification?
A: ISO9001 certificate
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