Product Introduction
Corundum bricks are with Al2O3≥90%. They have high hardness and melting point and are the main phase for high-temperature electrical insulation.
Corundum bricks have high aluminum content, high bulk density, refractoriness under load is over 1700℃, high strength and strong wear resistance.
Product Advantage
Good stability
Corundum bricks have good stability against acid, alkaline slag, metal and glass solutions
Good use effects
Especially when used in an oxidizing atmosphere or a reducing atmosphere at high temperature.
Application Field
Corundum bricks are mostly used in high-temperature industrial fields, mainly including the steel industry, non-ferrous metal smelting, glass industry, cement industry, chemical industry, ceramics and refractory industries.
Product Data
| Items | GYZ-99A | GYZ-99B | GYZ-98 | GYZ-95 |
| Al2O3 % ≧ | 99 | 99 | 98 | 95 |
| Fe2O3 % < | 0.1 | 0.15 | 0.2 | 0.3 |
| Bulk density g/cm3 | 3.2 | 3.15 | 3.15 | 3.1 |
| Cold crushing strength Mpa | 80 | 80 | 80 | 100 |
| Refractoriness under load ℃ | 1700 | 1700 | 1700 | 1700 |
| Apparent porosity % | 19 | 19 | 19 | 20 |
| Reheat linear change （1600*3h）% | -0.2~+0.2 | -0.2~+0.2 | -0.2~+0.2 | -0.3~+0.3 |