mullite insulating bricks
Product Description
| Shape |
Brick |
| Material |
Alumina Block |
| Al2O3 Content (%) |
38-44% |
| Refractoriness (Degree) |
Common (1580°< Refractoriness< 1770°) |
| Model Number |
LBR13040203 |
| Brand Name |
LAUREL |
| Classification temperature |
1350℃ |
| color |
white |
| function |
flue insulation/hot blast stoves |
| Bulk density |
0.8-1 |
| Thermal conductivity350℃(W/m.k) |
0.15 |
| size |
according to the customer |
CHARACTERISTIC:
Low density
High purity
Low thermal conductivity
Excellent thermal shock resistance
APPLICATION:
glass industries iron & steel industries
ceramics industries non-ferrous metals industries
electrolytic Aluminum industries power generation industries
Heat surface fireproof lining other fire-proof back lining
Tech Data
|
Item
|
JM-23
|
JM -26
|
JM -28
|
JM -30
|
JM -32
|
|
Classification temperature (oC)
|
1260
|
1430
|
1540
|
1650
|
1760
|
|
Bulk density (g/cm3)
|
0.6
|
0.8
|
0.9
|
1
|
1.25
|
|
Crushing strength (Mpa)
|
1.2
|
1.6
|
2.1
|
2.5
|
3.5
|
|
Modulus of rupture (Mpa)
|
0.9
|
1.4
|
1.6
|
2.1
|
2.1
|
|
Permanent linear change (CT-30oCX24h)%
|
0.5
|
0.4
|
0.5
|
0.9
|
0.9
|
|
Reversible thermal expansion at 1100
|
0.5
|
0.7
|
0.8
|
0.9
|
1.1
|
|
Thermal conductivity (W/m.k)
|
400oC
|
0.14
|
0.27
|
0.32
|
0.41
|
0.49
|
|
600oC
|
0.16
|
0.29
|
0.34
|
0.43
|
0.5
|
|
800oC
|
0.18
|
0.31
|
0.36
|
0.44
|
0.51
|
|
1000oC
|
0.2
|
0.33
|
0.38
|
0.45
|
0.53
|
|
1200oC
|
-
|
0.35
|
0.41
|
0.47
|
0.56
|
|
Chemical Analysis (%)
|
Al2O3
|
37
|
58
|
67
|
73
|
77
|
|
Fe2O3
|
0.7
|
0.7
|
0.6
|
0.5
|
0.4
|
|
comm size
|
230x114x75/65mm
|
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