High Temperature High Alumina Silica Refractory Brick Custom Heat Resistant
high temperature custom heat resistant high alumina silica refractory bricks
Excellent strength at ambient and elevated temperatures.High compressive strength.
Very low levels of iron and other impurities and energy-efficient.
Lower heat storage than denser refractory.Heats quickly and economically to operating temperature.
Physical and Chemical Indicators Of Silicon Carbide Refractory Brick :
|
specification item |
pledge value |
practice-test value |
|
|
SiC % |
≥75 |
75.02 |
|
|
Si3N4 % |
≥18 |
21.78 |
|
|
Fe2O3 % |
≤0.7 |
0.53 |
|
|
Apparent porosity % |
≤16 |
14 |
|
|
Bulk density |
g/cm3 |
≥2.65 |
2.75 |
|
Cold crushing strength |
Mpa |
≥170 |
245.9 |
|
Modulus of pupture |
Mpa |
≥42 |
55.7 |
|
Modulus of pupture(Mpa) 1400℃×0.5h |
≥45 |
58.0 |
|
|
W/m.k thermal conductivity |
≥16 |
19.9 |
|
| Item/Grade | High Alumina Refractory Brick | |||
| SK-36 | SK-37 | SK-38 | SK-40 | |
| Al2o3% (≥) | 55 | 65 | 70 | 82 |
| Fe2o3% (≤) | 2.0 | 2.0 | 2.0 | 2.0 |
| Refractoriness (SK) | 36 | 37 | 38 | 40 |
|
Refractoriness under load, 0.2MPa, ℃ (≥) |
1450 | 1480 | 1530 | 1600 |
| Porosity(%) | 20-23 | 20-23 | 20-22 | 18-20 |
| Density(g/cm3) | 2.25-2.4 | 2.3-2.5 | 2.4-2.6 | 2.5-2.7 |
| Cold crushing strength, MPa (≥) | 45 | 50 | 60 | 70 |
Certificates and Honor and partner
- ISO9001
- ISO14001
- ISO50001
- ISO45001
- Relevant patent certificates
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