82 PROMATON ® Lightweight Refractory Bricks 900°C to 1870°C PROMACOR Hight Temperature Insulating Board 1700°C Advantages and Properties • use of high-quality raw materials • dimensionally stable, sanded on all sides • low thermal shrinkage • high compressive strength • low thermal conductivity • use on the fire side • high thermal shock resistance • low bulk density, thus low heat storage • easy to work Special Dimensions End and side arch bricks, further brick quality e. g. fireclay bricks on request. Delivery Sizes PROMATON ® Dimension (mm) a b c NF1 64 114 230 NF 2 64 124 250 NF1/76 76 114 230 Tolerances Bulk density: ± 10% Length and width: ± 1.0 mm Thickness: ± 1.0 mm Delivery Sizes PROMACOR Boards Length x width x thickness 500 mm x 400 mm x 50 mm 500 mm x 400 mm x 40 mm 500 mm x 300 mm x 30 mm 500 mm x 400 mm x 25 mm 425 mm x 320 mm x 20 mm Delivery Sizes PROMACOR Bricks Length x width 229 mm x 114 mm 250 mm x 125 mm Thickness 40 mm, 64 mm and 75 mm a b c Technical Data – Standard Qualities Product Name PROMATON ® Lightweight Refractory Bricks K23 23 26 28 3000 32 33 34 Classification temperature °C 1300 1260 1430 1540 1650 1760 1820 1870 Bulk density ρ kg/m 3 500 500 800 900 1040 1200 1600 1450 Cold compression strength N/mm 2 1.0 1.1 2.0 3.0 3.1 3.2 18 12 Shrinkage after 24 h, 30 K below classification temperature % 0.0 0.5 0.5 0.5 0.7 0.4 0.0 0.3 Reversible thermal expansion % 1000°C 0.5 0.5 0.6 0.65 0.65 0.65 0.75 0.8 Thermal conductivity λ W/mK 400°C 0.15 0.18 0.26 0.33 0.41 0.58 1.20 1.70 600°C 0.17 0.21 0.28 0.34 0.42 0.60 1.11 1.38 800°C 0.19 0.25 0.31 0.36 0.44 0.61 1.10 1.25 1000°C 0.21 0.27 0.34 0.40 0.46 0.62 1.20 1.15 1200°C - - 0.36 0.45 0.50 0.63 1.27 1.17 Chemical analysis % Al2O3 39 37 57 65 70 78 85 99 SiO2 44 55 41 30 28 21 13 0.6 Fe2O3 0.4 0.7 0.8 0.9 0.3 0.2 0.8 0.1 CaO 16 - - - 0.2 0.1 - - alkaline 0.4 2.1 1.2 1.0 0.2 0.1 0.5 0.2 PROMATON ® lightweight refractory bricks Areas of Application PROMATON ® lightweight refractory bricks are used in furnaces and thermal processing plants with low mechanical stress and without any corrosion loading. They are particularly suitable for use in continuously operated plants. Examples include: - ceramic industry plants like chamber, bogie hearth and tunnel kilns - anode baking furnaces - coke ovens - cracker and process plants in the petrochemical industry - combustion chamber lining PROMACOR is suitable for high-tempera- ture applications where low thermal con- ductivity, low weight, high temperature shock resistance and no fibres are requi- red. Examples include: - interior insulation of laboratory and industrial furnaces - bogie hearth lining - use as kiln furniture - highly reducing furnace atmosphere at high temperatures - extreme chemical stress in the furnace chamber at high temperatures Material Description PROMATON ® lightweight refractory bricks are produced from pure raw mate- rials according to the casting or extrusion process using fine burnout materials and firing in modern furnaces. Production is quality-proven and certified according to ISO 9001. PROMACOR is a high-temperature ther- mal insulating material based on 98% alumina for temperature applications at up to 1700°C. PROMACOR is a fibre-free material and does not contain any free quartz. It is produced according to a special sol-gel process.