| 40-45% Alumina Bricks |
| PRODUCT: | AC 40 | AC 40 S | AC 45 | AC 45 S | AC 42 D |
| TYPE: | 40% Alumina Bricks | 40% Alumina Bricks | 45% Alumina Bricks | 45% Alumina Bricks | 42% Alumina Bricks |
| | | | | | |
| NATURE OF BOND: | CERAMIC | CERAMIC | CERAMIC | CERAMIC | CERAMIC |
| SHAPING: | DRY PRESSED | DRY PRESSED | DRY PRESSED | DRY PRESSED | DRY PRESSED |
| | | | | | |
| GENERAL PROPERTIES | | | | | |
| RAW MATERIAL BASE: | BRICK GROG | BRICK GROG | BRICK GROG | CALCINED CLAY | CALCINED CLAY |
| | | CALCINED CLAY | CALCINED BAUXITE | | |
| MAX.SERVICE TEMP: | 1400 °C | 1450 °C | 1400 °C | 1450 °C | 1480 °C |
| REVERSIBLE TH. EXP. | 0.55%at 1000 °C | 0.55%at 1000 °C | 0.55%at 1000 °C | 0.55%at 1000 °C | 0.55%at 1000 °C |
| | | | | | |
| CHEMICAL ANALYSIS, % | TY | SPE | TY | SPE | TY | SPE | TY | SPE | TY | SPE |
| Al2O3 | 41.00 | 40.00min | 41.00 | 40min | 46.00 | 45.00min | 46.00 | 45min | 45.00 | 42.00min |
| SiO2 | 52.70 | - | 53.50 | - | 47.00 | - | 48.60 | - | 50.60 | - |
| Fe2O3 | 2.80 | 3.00max | 2.10 | 2.2max | 3.00 | 3.50max | 1.85 | 2.00max | 1.25 | 1.50max |
| Tio2 | 2.90 | - | 2.80 | - | 3.20 | - | 3.00 | - | 2.60 | - |
| Cao | 0.30 | - | 0.30 | - | 0.50 | - | 0.30 | - | 0.20 | - |
| P2O5 | - | - | - | - | - | - | - | - | - | - |
| | | | | | |
| PHYSICAL PROPERTIES | TY | SPE | TY | SPE | TY | SPE | TY | SPE | TY | SPE |
| Bulk density, g/cc | 2.28 | 2.20 | 2.22 | 2.20 | 2.28 | 2.25 min | 2.28 | 2.25min | 2.32 | 2.30min |
| APPARENT POROSITY,% | 21.00 | 22max | 20.00 | 22max | 20.00 | 22 max | 18.00 | 21 max | 15.00 | 16 max |
| COLD CRUSHING STRENGTH, kg/cm2 | 370 | 350min | 390 | 350min | 450 | 400 min | 380 | 350 min | 650 | 600 min |
| | | | | | |
| THERMAL PROPERTIES | | | | | |
| | TY | SPE | TY | SPE | TY | SPE | TY | SPE | TY | SPE |
| Refractoriness, Orton/ ° C | 32/1717 | 32/1717 | 33/1743 | 33/1743 | 32(1/2)/1724 | 32/1717 | 33/1743 | 33/1743 | +34/1763 | 34/1763 |
| | | min | | min | | min | | min | | min |
| RUL,Ta°C at 2 kg/cm2 Load | 1420 | 1400min | 1450 | 1450min | 1420 | 1400min | 1460 | 1450min | 1490 | 1480min |
| PLC,% | | | | | | | | | | |
| after heating at 1350°C/3 hrs | - | - | - | - | - | - | - | - | - | - |
| after heating at 1400 °C/3 hrs | -0.30 | ±0.80 max | - | - | -0.55 | ±1.00max | - | - | - | - |
| after heating at 1450 ° C /3hrs | - | - | -0.45 | ±0.60max | - | - | -0.55 | ±0.80max | -0.13 | ±0.20max |
| after heating at 1500 °C/2 hrs | - | - | - | - | - | - | - | - | - | - |
| after heating at 1550 °C/2 hrs | - | - | - | - | - | - | - | - | - | - |
| after heating at 1600 °C/2 hrs | - | - | - | - | - | - | - | - | - | - |
| Thermal Conductivity,Kcal/m /hr/°C | | | | | | | | | | |
| At 400 ° C HF | 0.82 | - | 0.80 | - | 0.91 | - | 0.90 | - | 0.93 | - |
| At 600 ° C HF | 0.86 | - | 0.85 | - | 0.94 | - | 0.93 | - | 0.96 | - |
| At 800 ° C HF | 0.89 | - | 0.88 | - | 0.97 | - | 0.97 | - | 0.98 | - |
| | | | | | |
| SIZE TOLERANCE: | ±1.5% or ±2mm | ±1.5% or ±2mm | ±1.5% or ±2mm | ±1.5% or ±2mm | ±1.5% or ±2mm |
Refractory 
