Full catalogue · 7 categories · 35+ grades
Refractory Bricks & Refractories — Full Product Range
Refractory bricks are heat-resistant building blocks fired from clay, alumina, magnesia, silica or specialty oxides. They line industrial furnaces, kilns, ladles and reactors that operate between roughly 1100 °C and 1800 °C. firebrickssource.com supplies the full range — fireclay, high-alumina, insulating, basic, acid-resistant, specialty and custom precast shapes — from Rajkot, Gujarat, to industrial buyers worldwide.
Fire Bricks & Fireclay
Dense fireclay, silica, mullite and arch / wedge fire bricks. The workhorse refractory of cement, steel and ceramic industries.
- Dense fireclay bricks
- Silica refractory bricks
- Mullite bricks
- Arch & wedge variants
High-Alumina Bricks
45 – 90% Al₂O₃ bricks for cement kilns, glass furnaces, ladle linings and other high-thermal-load zones.
- 45 – 50% alumina
- 60% alumina
- 70% alumina
- 80 – 90% super-duty
- Corundum (>90%)
Insulating Fire Bricks (IFB)
K-23, K-26, K-28, K-30 lightweight insulation bricks plus calcium silicate boards. Low conductivity, low density.
- K-23 / JM-23
- K-26 / JM-26
- K-28 / JM-28
- K-30 / JM-30
- Calcium silicate boards
Basic Refractories
Magnesia, magnesia-carbon, magnesia-chrome and dolomite — engineered for slag-rich, high-basicity steel and cement service.
- Magnesia (MgO) bricks
- Magnesia-carbon (MgO-C)
- Magnesia-chrome
- Dolomite bricks
Acid-Resistant Bricks
High-silica acid-resistant bricks, acid-proof tiles, zircon and silicon-carbide refractories for chemical and process linings.
- High-silica acid-resistant
- Acid-proof tiles & pavers
- Zircon bricks
- Silicon carbide (SiC)
Specialty Refractories
Fused-cast AZS for glass tanks, premium corundum, carbon & graphite blocks, zirconia bricks — severe-duty grades.
- Fused-cast AZS
- Premium corundum
- Carbon & graphite blocks
- Zirconia bricks
Special Shapes & Custom Precast
Engineered shapes — arch / wedge, checker bricks, burner blocks, tap-hole bricks, custom precast — made to drawing.
- Arch & wedge
- Checker bricks
- Burner blocks
- Tap-hole bricks
- Custom precast shapes
Quick comparison
Refractory categories at a glance
Pick the right family by alumina/MgO content, peak service temperature and chemistry. For full property tables, open the category page.
| Category | Primary chemistry | Max service °C | Chemical nature | Typical applications |
|---|---|---|---|---|
| Fire Bricks (Fireclay) | Al₂O₃ 30 – 46%, SiO₂ balance | ≤ 1500 | Acidic | General-purpose linings, chimneys, ovens, kilns |
| High-Alumina | Al₂O₃ 45 – 90% | ≤ 1800 | Acidic / neutral | Cement kilns, glass tanks, ladles, reheat furnaces |
| Insulating IFB | Al₂O₃ 35 – 75% (lightweight) | ≤ 1700 | Insulating | Hot-face insulation, back-up layers, kiln cars |
| Basic (Magnesia / Dolomite) | MgO 80 – 97%, CaO + MgO | ≤ 1800 | Basic | BOF, EAF, ladles, cement rotary burning zone |
| Acid-Resistant | SiO₂ ≥ 90%, ZrSiO₄, SiC | ≤ 1400 | Acidic | Chemical reactors, FGD plants, acid linings |
| Specialty (AZS / Corundum) | Al₂O₃ + ZrO₂ + SiO₂, >95% Al₂O₃ | ≤ 1800 | Neutral | Glass tanks, severe-duty zones, electric arc |
| Special Shapes | Per parent grade | As specified | Per grade | Burner blocks, checkers, precast, custom-engineered |
Custom enquiries
Can't find what you need?
We regularly supply non-standard sizes, custom chemistry blends and precast shapes — including engineered drawings, tap-hole assemblies and burner blocks. Send us a specification or drawing.