Engineered to Withstand, Built to Last.
Insulating Fire Bricks are a special type of brick that can handle high temperatures and act as insulation. Insulating firebrick is used to line fireplaces, fireboxes, furnaces and kilns. It is sometimes referred to as "refractory brick" and is designed to withstand temperatures of up to 1760°C while actually conducting very little of that heat in order to provide a greater level of energy efficiency.
Insulating firebrick is a refractory brick or block, of a ceramic material that is commonly used in a variety of different applications including fireboxes, all types of furnaces, melting and industrial kilns.
Enables the material to withstand extreme heat without melting or degrading, which is essential in industrial furnaces and kilns.
Minimizes heat transfer, improving energy efficiency and reducing heat loss in high-temperature systems.
Allows the material to endure sudden changes in temperature without cracking, ensuring durability and reliability during thermal cycling.
Reduces structural load, simplifies installation, and improves thermal efficiency by lowering heat storage.
| Product | AL₂O₃% min | Fe₂O₃% max | Bulk Density | A.P% min | C.C.S Kg/Cm² max | Thermal Conductivity at 600°C mean temp W/MK | Refractoriness | Service Temp. | PCE |
|---|---|---|---|---|---|---|---|---|---|
| CFI | 30 | 2.5 | 0.8 | 65 | 15 | 0.35 | 30 | 1250 | - |
| HFI | 30 | 2.5 | 0.9 | 60 | 20 | 0.40 | 30 | 1300 | - |
| PROPERTY | HFK-125 | HFK-135 | HFK-140 | JM-23 | JM-26 |
|---|---|---|---|---|---|
| MAXIMUM SERVICE TEMP °C | 1250 | 1350 | 1400 | 1260 | 1350 |
| BULK DENSITY (gm/cc) | 1 max | 1.10 max | 1.10 max | 0.70 max | 0.80 max |
| CCS (kg/cm²) | 25 min | 30 min | 30 min | 20 min | 25 min |
| AP % | 60% ± 1.0 max | 55% ± 1.0 max | 55% ± 1.0 max | 55% ± 1.0 max | 45% ± 1.0 max |
| HFK-125 | HFK-135 | HFK-140 | JM-23 | JM-26 | |
|---|---|---|---|---|---|
| AL₂O₃ | 25-30 | 30-35 | 35-40 | 35-40 | 50-40 |
| Fe₂O₃ | 1.0 max | 1.0 max | 1.2 max | 1.0 max | 1.0 max |