Characters:
1. Low bulk density, low thermal conductivity, good thermal insulation performance.
2. Refractory category allows direct contact of fire, suitable for various atmospheres.
3. Good integrity with furnace lining, long service life, easy operation, could be shaped freely.
Introduction:
Fireclay brick is made of flint clay and clay. The raw material is grinded and mixed with automatic blender. Then shaped by 400MT punching machine. After dying, the brick is fired in tunnel kiln,
then selected and packaged. Strict quality control is implemented in every process of production to ensure the good and stable product quality.
Standard Specification:
|
JK-37
|
|
|
Quality Index
|
Standard
|
|
AL2O3 (%)
|
60
|
|
Refractoriness (SK)
|
37
|
|
0.2Mpa Softening temperature (°C)
|
1450
|
|
Apparent porosity (%)
|
20-22
|
|
Bulk density (g/cm³)
|
2.35-2.45
|
|
Cold crushing strength Mpa (MPa)
|
45
|
|
Thermal expansion at 1000°C (%)
|
0.3
|
|
JK-34
|
|
|
Quality Index
|
Standard
|
|
AL2O3 (%)
|
38
|
|
Refractoriness (SK)
|
34
|
|
0.2Mpa Softening temperature (°C)
|
1350
|
|
Apparent porosity (%)
|
19-23
|
|
Bulk density (g/cm³)
|
2.10-2.15
|
|
Cold crushing strength Mpa (MPa)
|
25
|
|
Thermal expansion at 1000°C (%)
|
0.6
|
|
JK-36
|
|
|
Quality Index
|
Standard
|
|
AL2O3 (%)
|
50
|
|
Refractoriness (SK)
|
36
|
|
0.2MpaSoftening temperature (°C)
|
1450
|
|
Apparent porosity (%)
|
20-24
|
|
Bulk density (g/cm³)
|
2.30-2.40
|
|
Cold crushing strength Mpa (MPa)
|
45
|
|
Thermal expansion at 1000°C (%)
|
0.3
|
|
JK-32
|
|
|
Quality Index
|
Standard
|
|
AL2O3 (%)
|
35
|
|
Refractoriness (SK)
|
32
|
|
0.2Mpa Softening temperature (°C)
|
1300
|
|
Apparent porosity (%)
|
22-26
|
|
Bulk density (g/cm³)
|
2.05
|
|
Cold crushing strength Mpa (MPa)
|
25
|
|
Thermal expansion at 1000°C (%)
|
0.6
|
