Mullite Insulation Brick
Mark & model：JM-23、JM-26、JM-28、JM-30
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.
|
Brand Item |
JM-23 |
JM-26 |
JM-28 |
JM-30 |
|
Al2O3(%)min |
37 |
50 |
60 |
68 |
|
Fe2O3(%)max |
||||
|
SiO2(%)max |
45 |
43 |
36 |
29 |
|
Safty Application Temp.(℃)max |
1260 |
1430 |
1540 |
1650 |
|
Bulk Density(g/cm3) |
||||
|
Bending strength(Mpa)min |
||||
|
Crush strength(Mpa)min |
||||
|
RLC(%)max |
1230℃×24h |
1400℃×24h |
1510℃×24h |
1600℃×24h |
|
Reversible thermal expansion at1090℃(%) max |
||||
|
Thermal conductivity (w/m.k)max 400℃ 600℃ 800℃ 1000℃ |
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