Refractory Mullite insulation / insulating fire brick
Negotiable /Piece
Min.Order:1000 Pieces
Refractory Mullite insulation / insulating fire brick
Description | Grade 23 | Grade 26 | Grade 28 | Grade 30 | |
Classification Temperature | 1300C/2372F | 1400C/2552F | 1500C/2732F | 1550C/2822F | |
Density(kg/m3) | 600 | 800 | 900 | 1000 | |
Cold Crushing Strength (MPa) | 1.2 | 1.8 | 2.5 | 3.3 | |
Modulus of Rupture(MPa) | 1.0 | 1.7 | 2.3 | 3.1 | |
Permanent Linear Change (%)x24hrs | ≤0.6 | ≤0.6 | ≤0.8 | ≤0.9 | |
Thermal Expansion (%)1000C | 0.5 | 0.52 | 0.52 | 0.53 | |
Thermal Conductivity (W/m.k) | 350C | 0.18 | 0.25 | 0.33 | 0.38 |
400C | 0.20 | 0.29 | 0.35 | 0.40 | |
600C | 0.24 | 0.32 | 0.37 | 0.42 | |
Chemical Composition (%) | Al2O3 | 42 | 56 | 67 | 73 |
SiO2 | 55 | 41 | 30 | 24 | |
Fe2O3 | ≤1 | ≤0.8 | ≤0.7 | ≤0.7 | |
K2O+Na2O | 1.1 | 1.7 | 1.7 | 1.7 |
We supply the bricks under strict control on quality,which ranges from the
inspection on raw materials, the supervision on the production technique and
process,the check on the delivered materials before dispatch.Our bricks are proved
to be a state-of-art thermalinsulating materials in the industrial furnaces and kilns
due to its features such as low thermal conductivity,the low iron content and good
strength,as a qualified member of the family of refractories in JIUCHEN company,
the applications and engineering together with our refractory ceramic fibers are
obtaining increasing and unparalleled popularity.