Mullite Insulating Refractory Brick JM23 JM26 JM28 made by CH refractories is JM series according to international standard.
Because JM23 JM26 JM28 insulation brick with smaller bulk density whose strength is not as strong as heavy weight fire bricks, when delivering, CH Refractories will package mullite insulating brick with special packages to protect mullite bricks from damage.
Mullite insulating brick is a new type of lightweight mullite bricks with 50-80% Al2O3, mullite (3Al2O32SiO2) as main crystalline phase and binder phase. JM23 JM26 JM28 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. Mullite insulating brick became one of the research focuses recent years. Mullite insulating brick adopts high-purity raw materials and unique production process to minimize the influence of impurities and structural defects on the performance of the product. Mullite insulating brick adapts to various furnace types and different construction environment well. Mullite insulating brick is high level insulation products for kiln and furnace, which can be used for higher temperature insulating layer than common insulating bricks.
In order to make sure safely deliverying of insulation brick, CH Refractories pay a great attention on the package, we put several pieces mullite insulation into a paper carton and then put on the pallet, make sure there is no any damage to the bricks when shipping in the contaiers.
Physical and chemical index of Mullite Insulating Refractory Brick JM23 JM26 JM28
| 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 ℃/%≤ | 1300*12 | 1300*12 | 1300*12 | 1400*12 | 1400*12 | 1400*12 | 1500*12 | 1500*12 |
| 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 |
Applications of Mullite Insulating Refractory Brick JM23 JM26 JM28:
Glass industries iron & steel industries
Ceramics industries non-ferrous metals industries
Heat surface fireproof lining other fire-proof back lining
Electrolytic Aluminum industries power generation industries
Advantages of CH refractories Mullite Insulating Refractory Brick JM23 JM26 JM28:
High strength
Low thermal conductivity
High temperature volume stability
Customerize mould according to different size requirements for free
