Refractory Brick Protecting Against Corrosion
Refractory bricks are special types of bricks well-known for their unmatched ability to combat high temperatures. Some of the other names of these bricks are ceramic bricks or fire bricks.
Description
Description
Bricks are the most significant construction materials. Mankind has been using them for thousands of years. But when it comes to withstanding high temperatures, normal bricks cannot serve the purpose. Here the bricks that ZhenAn’s top basic refractory bricks suppliers produce come into play. As conventional bricks always tend to crack at high temperatures, they are replaced by refractory bricks. Refractory bricks are special types of bricks well-known for their unmatched ability to combat high temperatures. Some of the other names of these bricks are ceramic bricks or fire bricks.
Specification
High alumina insulating brick | HCR HAI1.2 | HCR HAI1.0 | HCR HAI0.9 | HCR HAI0.8 | HCR HAI0.7 | HCR HAI0.6 | HCR HAI0.5 |
Al2O3≥ | 48 | ||||||
Fe2O3≤ | 2.0 | ||||||
Bulk Density g/cm3≤ | 1.2 | 1.0 | 0.9 | 0.8 | 0.7 | 0.6 | 0.5 |
Cold Crushing Strength MPa≥ | 5 | 3.92 | 3.43 | 2.94 | 2.45 | 1.96 | 1.47 |
Thermal conductivity 350℃,W/M.K | 0.55 | 0.5 | 0.45 | 0.35 | 0.35 | 0.30 | 0.25 |
Permanent Linear Change On Reheating≤2.0%℃ | 1400 | 1400 | 1400 | 1400 | 1350 | 1350 | 1250 |
Primary characteristics
Some of the primary characteristics of refractory bricks include the following:
Refractory bricks are generally yellowish-white in color. They have excellent thermal resistance and great compressive strength. Their chemical composition drastically differs from the chemical composition of normal bricks. Refractory bricks contain around 25 to 30% alumina and 60 to 70% of silica. They also contain oxides of magnesium, calcium, and potassium. Refractory bricks find application in the construction of kilns, furnaces, etc. They can withstand temperatures up to 2100 degrees Celsius. They have the incredible thermal capacity that helps different structures to remain stable at extreme temperatures.
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