Insulation Brick
Insulation brick include the high alumina insulation bricks, fire clay insulation brick, silica insulation brick, mullite insulation brick...
1: Mullite Insulation brick
Item/Type
|
JM-23
|
JM-26
|
JM -28
|
JM -30
|
JM -32
|
Classification temperature,
Reference using temperature (oC) ≥
|
1260
|
1430
|
1540
|
1650
|
1760
|
Bulk density (g/cm3)
|
0.8
|
0.9
|
0.9
|
1.0
|
1.25
|
Crushing strength (Mpa) ≥
|
1.3
|
1.6
|
2.1
|
16
|
16
|
Modulus of rupture (Mpa) ≥
|
0.9
|
1.4
|
1.6
|
2.1
|
2.1
|
Permanent linear change (oCX24h)% ≤
|
1350℃×24h
0.5
|
1400℃×24h
0.4
|
1510℃×24h
0.5
|
1620℃×24h
0.9
|
1730℃×24h
0.9
|
Thermal conductivity (W/m.k) ≤
|
800oC
|
0.18
|
0.31
|
0.32
|
0.44
|
0.50
|
|
1000oC
|
0.2
|
0.34
|
0.35
|
0.45
|
0.52
|
|
1200oC
|
-
|
0.40
|
0.41
|
0.47
|
0.56
|
Chemical Analysis (%)
|
Al2O3 ≥
|
37
|
58
|
67
|
73
|
77
|
|
Fe2O3 ≤
|
1.0
|
0.8
|
0.8
|
0.6
|
0.4
|
High Alumina Insulation Brick
Item
|
Model
|
|
LTL-0.6
|
LTL-0.8
|
LTL-1.0
|
LTL-1.2
|
Bulk density,g/cm3
|
0.6
|
0.8
|
1.0
|
1.2
|
Cold Crushing strength MPa
|
2.0
|
3.98
|
4.98
|
5.98
|
Permanent linear change,2%(°C×h)
|
1350×12
|
1400×12
|
1400×12
|
1400×12
|
Coefficient of thermal conductivity w/m.k(350±25°C)
|
0.25
|
0.29
|
0.35
|
0.45
|
Fe2O3%
|
1.8
|
1.8
|
1.8
|
1.8
|
AL2O3%
|
50
|
50
|
55
|
55
|
Application
|
All industrial furnace
|
|