High alumina bricks is one kind of neutral refractory material, not only has certain corrosion resistance to acidic and alkaline slag, but also has the characteristics of high cold crushing strength,
erosion resistance, strong penetration resistance, and high refractoriness under load. High alumina refractory brick is a kind of refractory material, the main component of this kind of refractory fire
bricks is AL2O3.
If the Al2O3 content is higher than 90%, it is called corundum brick. Due to different resources, national standards are not completely consistent. In China, according to the content of Al2O3 in
high alumina bricks, it is usually divided into three grades: Grade I–Al2O3 content>75%; Grade II–Al2O3 content is 60~75%; Grade III–Al2O3 content is 48~60%.The production process of high
alumina fireproof bricks and multi-clinker clay bricks is similar. The difference is that the proportion of clinker in the ingredients is higher, which can be as high as 90~95%. The clinker needs to be
classified and screened before being broken. Higher, such as I, II and other high alumina fire proof bricks are generally 1500~1600 ºC when fired in tunnel kiln.
Characteristics Of High Alumina Refractory Bricks
1. High refractoriness;
2. High temperature strength;
3. High thermal stability;
4. Neutral refractory;
5. Good resistance to acid and basic slag corrosion;
6. High refractoriness under load;
7. High temperature creep resistance;
8. Low apparent porosity;
Use Of High Alumina Refractory Bricks:
High alumina brick is widely used for Widely used in blast furnaces, Hot Blast Stove, Steel ladle lining, Reheating furnace, Cement kiln, Tunnel kiln,boiler, coke oven, carbon furnace, glass kiln , Steel smelting furnace and
various kiln lining and thermal technical equipment, etc.
Standard sizing: 230 x 114 x 65 mm ,Special size and OEM Service also provide!
Specification Of High Alumina Refractory Bricks:
| Item | Specification | |||||
| LZ-80 | LZ-75 | LZ-70 | LZ-65 | LZ-55 | LZ-48 | |
| Al2O3 % | ≥80 | ≥75 | ≥70 | ≥65 | ≥55 | ≥48 |
| Apparent Porosity, % | ≤21 | ≤24 | ≤24 | ≤24 | ≤22 | ≤22 |
| CCS, MPa | ≥70 | ≥60 | ≥55 | ≥50 | ≥45 | ≥40 |
| 0.2MPa RUL ℃ | ≥1530 | ≥1520 | ≥1510 | ≥1500 | ≥1450 | ≥1420 |
| PLC, % | 1500℃×2h
-0.4~0.2 |
1450℃×2h
-0.4~0.1 |
||||
Product Application of High alumina bricks:
Packaging : Packed by sea-worthy wooden pallet + shrink wrapped + carton For example, Standard size of Fireclay brick : 230x114x65mm Shipping : 384pcs/plt x 18plts in one 20 feet container;
Why choose us?
1.Abundant Experience. Rongsheng Group have over 20 years experience in the refractory industry and we have a deep understanding of the materials and applications we work with. We can provide expert advice and
guidance to help customers find the best solutions for their needs.
2.Quality products. We pride ourselves on providing high-quality refractory products that are made to last. Our materials are carefully sourced and tested to ensure they meet our strict standards.
3.Competitive Price. We offer competitive price on all of our products without sacrificing quality and make the products competitive in your market.
4.Customization. We understand that every customer is unique, which is why we offer customized solutions tailored to their specific requirements. Whether it’s a custom shape or size, we can work with customers to create
the ideal product for their application.
5.Safety. We take safety seriously and ensure that all of our products meet safety standards. Safty packing, prompt delivery time, and excellent after-sales services.
6.Large stocks. With a large stock of products on hand, we can better serve our customers, save money, and gain a competitive edge in their industry.
7. Overall solutions. We offer optimal and comprehensive solutions to supply the necessary refractory material for your high temperature kiln.
So choosing us is the right choice for you. If you are interested in our products or if you have any question, pls feel free to contact us at any time. We will reply as soon as possible.
