Zhengzhou Rongsheng Refractory Co., Ltd.
Zhengzhou Rongsheng Refractory Co., Ltd. Refractory manufacturing company.
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Eco Friendly Mullite Fireclay Brick High Alumina Refractory Bricks SK-30 SK-36
Description:
Refractory Bricks For Casting Steel
Feature:
1. bricks are made from high quality bauxite
2. dry pressed
3. burned under tunnel kiln
4. accurate dimension
5. high strength
Product specification:
standard form, normal standard, shaped and special shaped bricks.Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the mostly used in the key positions.Molding method: it has down draft kiln and tunnel kiln and the general sintering temperature is 1360-1480 degrees. It is a kind of aluminosilicate refractory product which aluminum oxide (Al2O3) content is higher than 48%.
Applications:
1. Steel furnaces
2. Iron making furnaces
3. Glass kiln
4. Ceramic tunnel kiln
5. Cement kiln
Specifications:
Physical and chemical indexes:
|
Item/Grade |
Fire clay brick |
High alumina brick |
||||||
|
SK-30 |
SK-32 |
SK-34 |
SK-35 |
SK-36 |
SK-37 |
SK-38 |
SK-40 |
|
|
AL2O3% (≥) |
30 |
35 |
38 |
45 |
55 |
65 |
70 |
82 |
|
Fe2O3% (≤) |
2.5 |
2.5 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
2.0 |
|
Refractoriness(SK) |
30 |
32 |
34 |
35 |
36 |
37 |
38 |
40 |
|
Refractoriness under load, 0.2MPa, °C (≥) |
1250 |
1300 |
1360 |
1420 |
1450 |
1480 |
1530 |
1600 |
|
Apparent porosity (%) |
22-26 |
20-24 |
20-22 |
18-20 |
20-23 |
20-23 |
20-22 |
18-20 |
|
Bulk density (g/cm³) |
1.9-2.0 |
1.95-2.1 |
2.1-2.2 |
2.15-2.22 |
2.25-2.4 |
2.3-2.5 |
2.4-2.6 |
2.5-2.7 |
|
Cold crushing strength ,MPa (≥) |
20 |
25 |
30 |
40 |
45 |
50 |
60 |
70 |
Competitive Advantage: