| Model: | JM-23、JM-26、JM- |
|---|---|
| Brand: | YQMM |
| Origin: | Made In China |
| Category: | Construction & Decoration / Heat Insulation |
| Label: | Brick , Mullite |
| Price: |
-
|
| Min. Order: | 2000 pc |
| Live Chat: | Last Online:29 Dec, 2014 |
Mullite Insulation Brick
Characteristic:
1 Lower content in iron, alkaline and impurities, good high temperature properties, energy good resistance to reduction atmosphere.
2 Homogeneous structure, light weight, high crushing strength, good insulating properties, energy saving because lower heat storage in the furnace body during cooling-heating cycles.
3 High strength, good volume stability and thermal shock resistance under high temperature.
4 Less size tolerance due to grinding and shaping after sintering, this meets the requirement of construction.
Application: used in metallurgical industry for hot galvanizing furnaces, silicon steel treatment furnace, hot blast stoves and in petrochemicals industry for ethylene cracking furnaces, hydrogen making furnaces, one-stage conversion furnaces, Sulfur recovery devices, and also in other heat engineering equipment such as rolling kilns, shuttle kilns, anti-nit riding and ant carbonizing furnace.
|
Item |
JM-23 |
JM-26 |
JM-28 |
JM-30 |
|
Al2O3(%)min |
37 |
50 |
60 |
68 |
|
Fe2O3(%)max |
1.0 |
1.0 |
0.7 |
0.5 |
|
SiO2(%)max |
45 |
43 |
36 |
29 |
|
Safty Application Temp.(℃)max |
1260 |
1430 |
1540 |
1650 |
|
Bulk Density(g/cm3) |
0.5 |
0.8 |
0.95 |
1.05 |
|
Bending strength(Mpa)min |
0.7 |
1.1 |
1.6 |
2.0 |
|
Crush strength(Mpa)min |
1.0 |
2.0 |
2.3 |
2.7 |
|
RLC(%)max |
1230℃×24h 0.3 |
1400℃×24h 0.4 |
1510℃×24h 0.5 |
1600℃×24h 0.6 |
|
Reversible thermal expansion at1090℃(%) max |
0.5 |
0.6 |
0.8 |
0.8 |
|
Thermal conductivity (w/m.k)max 400℃ 600℃ 800℃ 1000℃ |
0.15 0.17 0.19 0.24 |
0.28 0.31 0.33 0.35 |
0.33 0.36 0.39 0.42 |
0.41 0.43 0.45 0.48 |
