Product description
Insulating soft fire brick made by CH refractories is JM series according to international standard.
insulating soft fire brick is a new type of lightweight mullite bricks with 50-80% Al2O3, mullite (3Al2O3·2SiO2) as main crystalline phase and binder phase. Jm23 insulation brick is widely used for working face inner lining that contact flame directly because high temperature stability and high strength, low thermal expansivity and good thermal shock resistance.
Advantages of insulating soft fire brick:
High temperature resistance: insulating soft fire brick use high-purity alumina as the main component and have excellent high-temperature resistance. In high temperature environments, it can maintain stable physical and chemical properties, is not prone to ablation and deformation, and extends its service life.
low density: insulating soft fire brick use lightweight aggregate as the main raw material, making them less dense. Compared with traditional refractory bricks, it is lighter in weight, reduces structural load, and facilitates construction and transportation.
Application of insulating soft fire brick
Used in refractory hot surface linings and backing insulation layers of other refractory materials, Refractory insulation materials for industrial furnaces such as cracking furnace tubular heating furnaces, reforming furnaces, hot blast furnaces, ladle insulation linings, shuttle kilns, tunnel kilns, ceramic track kilns, and push plate kilns in the steel, metallurgical, and chemical industries.
Physical and chemical index of insulating soft fire brick
|
Brands |
JM23-0.6 |
JM23-0.8 |
JM23-1.0 |
JM26-0.6 |
JM26-0.8 |
JM26-1.0 |
JM28-1.0 |
JM28-1.2 |
|
Bulk density g/cm3 ≥ |
0.6 |
0.8 |
1.0 |
0.6 |
0.8 |
1.0 |
1.0 |
1.2 |
|
CCS/Mpa ≥ |
1.5 |
2.5 |
4.2 |
1.5 |
3.2 |
4.0 |
4.0 |
5 |
|
thermal shock resistance(1100℃)/times ≥ |
10 |
20 |
20 |
10 |
20 |
20 |
20 |
20 |
|
The reheating line changes by no more than 1% of the test temperature ℃/%≤ |
1300x12 |
1300x12 |
1300x12 |
1400x12 |
1400x12 |
1400x12 |
1500x12 |
1500x12 |
|
Thermal conductivity average temperature350±25℃(W/m.k) |
0.2 |
0.23 |
0.33 |
0.2 |
0.25 |
0.33 |
0.35 |
0.4 |
|
Al2O3%≥ |
48 |
49 |
50 |
55 |
57 |
57 |
60 |
67 |
|
Fe2O3% |
0.9 |
0.9 |
0.9 |
0.8 |
0.8 |
0.8 |
0.7 |
0.6 |
Packages and delivery:
Physical and chemical index of insulating soft fire brick
|
Brands |
JM23-0.6 |
JM23-0.8 |
JM23-1.0 |
JM26-0.6 |
JM26-0.8 |
JM26-1.0 |
JM28-1.0 |
JM28-1.2 |
|
Bulk density g/cm3 ≥ |
0.6 |
0.8 |
1.0 |
0.6 |
0.8 |
1.0 |
1.0 |
1.2 |
|
CCS/Mpa ≥ |
1.5 |
2.5 |
4.2 |
1.5 |
3.2 |
4.0 |
4.0 |
5 |
|
thermal shock resistance(1100℃)/times ≥ |
10 |
20 |
20 |
10 |
20 |
20 |
20 |
20 |
|
The reheating line changes by no more than 1% of the test temperature ℃/%≤ |
1300x12 |
1300x12 |
1300x12 |
1400x12 |
1400x12 |
1400x12 |
1500x12 |
1500x12 |
|
Thermal conductivity average temperature350±25℃(W/m.k) |
0.2 |
0.23 |
0.33 |
0.2 |
0.25 |
0.33 |
0.35 |
0.4 |
|
Al2O3%≥ |
48 |
49 |
50 |
55 |
57 |
57 |
60 |
67 |
|
Fe2O3% |
0.9 |
0.9 |
0.9 |
0.8 |
0.8 |
0.8 |
0.7 |
0.6 |
