| Refractoriness (℃): | 1770< Refractoriness< 2000 |
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| Feature: | Long Time Materials, Instant Materials, Fire Brick |
| Type: | Refractory Material |
| Shape: | Brick |
| Material: | Alumina Block |
| Apparent Porosity: | Less Than 23% |
| Samples: |
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| Customization: |
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Audited Supplier High Alumina Refractory Bricks Introduction
High alumina brick is a kind of refractory material, the main component of this kind of refractory brick 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 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 bricks are generally 1500~1600 ºC when fired in tunnel kiln.
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 thermotechnical equipment, etc.
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
| High Alumina Refractory Brick Physical and Chemical Index: | ||||||
Item |
Properties |
|||||
| YT-80 | YT-75 | YT-65 | YT-55 | YT-48 | ||
| Al203(%) | 80 | ≥75 | ≥65 | ≥55 | ≥48 | |
| Refractoriness(ºC) | ≥1790 | ≥1790 | ≥1790 | ≥1770 | ≥1750 | |
| Bulk density(g/cm³) | 2.65 | 2.5 | 2.45 | 2.4 | 2.3 | |
| Softening temperature under load(ºC) |
1530 | ≥1520 | ≥1500 | ≥1470 | ≥1420 | |
| Reheating Linear changes Rate(%) |
1500ºC×2H | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| 1450ºC×2H | -0.4 | -0.4 | -0.4 | -0.4 | -0.4 | |
| Apparent porosity (%) | 22 | ≤23 | ≤23 | ≤22 | ≤22 | |
| Cold crushing strength(Mpa) |
55 | ≥50 | ≥45 | ≥40 | ≥35 | |
Application |
steel furnace,glass furnace,sodium silicate furnace,ceramic shuttle kiln, cement rotary kiln,blast furnace,electric furnace,blast furnace and reverberatory furnace. | |||||
Our company is equipped with professional testing equipment to conduct technical testing in multiple processes from raw materials to finished products. We continuously strive to exceed our customers' expectations and always provide reliable products and excellent service.
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.
Henan Yutai High Temperature New Material Technology Co., Ltd.
The company is a high-tech enterprise integrating scientific research, production, sales and service. It is committed to providing first-class solutions and services to the global high-temperature industry, including steel, aluminum, electricity, glass, kilns, non-ferrous metals, cement industries, etc.
The company has won widespread praise in domestic and foreign markets for its excellent product quality and after-sales service.
Send us inquiry to got more!!!
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