Fire Clay Brick
1.Made by flint clay clinker and binder,through Crushing,Mixing,Shaping,Drying and high temperature Sintering.
2.Al2O3 content is 30%-48%,SiO2 content is 50%-65%,and a small number of alkali metals,alkaline earthmetal oxides TiO2,Fe2O3 etc.
3.Mineral composition is usually mullite, quartz and glass phase.
4.Refractoriness is 1580-1750°C, refractoriness under load is 1250-1450°C, line expansion coefficients is low, with good thermal shock resistance,strong ability to resist erosion acid slag.
5.W
Other name: SK30 SK32 SK34 Standard Dense Fire Clay Refractory Brick
Model Number: SK30 SK32 SK34
Certification: ISO
Minimum Order Quantity: 10
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Clay brick introduction
1.Made by flint clay clinker and binder,through Crushing,Mixing,Shaping,Drying and high temperature Sintering.
2.Al2O3 content is 30%-48%,SiO2 content is 50%-65%,and a small number of alkali metals,alkaline earthmetal oxides TiO2,Fe2O3 etc.
3.Mineral composition is usually mullite, quartz and glass phase.
4.Refractoriness is 1580-1750°C, refractoriness under load is 1250-1450°C, line expansion coefficients is low, with good thermal shock resistance,strong ability to resist erosion acid slag.
5.Working temperature:less than 1350°C.
Clay brick specifications and sechnical data
Item | AL-30 | AL-34 | AL-38 | AL-45 | AL-55 |
AL2O3 % (min) | 30 | 34 | 38 | 45 | 55 |
Fe2O3% (max) | 3 | 3 | 2.8 | 2.8 | 2.6 |
Refractoriness | 1670°C | 1710°C | 1750°C | 1770°C | 1770°C |
Refractoriness under load, 0.2MPa, (°C) | 1250 | 1300 | 1350 | 1450 | 1470 |
Apparent porosity (%) | 22-26 | 22-26 | 20-24 | 20-22 | 20 |
Bulk density (g/cm³) | 1.9-2.1 | 1.95-2.1 | 2.1-2.2 | 2.15-2.22 | 2.2-2.35 |
Cold crushing strength (MPa) | 20 | 25 | 30 | 35 | 40 |
Thermal expansion at 1000°C (%) | 0.8 | 0.6 | 0.6 | 0.5 | 0.4 |
Clay brick features
1. Low thermal conductivity, good thermal insulation performance.
2. Long service life, easy operation, could be shaped freely
3. Product specification: standard form, normal standard, shaped and special shaped bricks.
4. Can be used in various kilns because of its cheapness and general tray package. Among all of the refractory materials, it is the most widely used.
Clay brick applications
1. Carbon bake furnaces in the aluminum industry
2. Preheat zones and cyclones of rotary cement kilns
3. Insulation for glass tanks
4. Fireplace and pizza ovens
5. Coke ovens
6. Blast furnaces
7. Reheating furnaces
8. Suspended roofs
9. Lime kilns
10. Chimney
