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HA60 HA70 HA75 HA80 High Alumina Thermal Resistant Custom Size Insulation Brick With Welding & Cutting Services For Incinerator
| موك: | 1 قطعة |
| سعر: | negotiable |
| التعبئة والتغليف القياسية: | المنصات |
| فترة التسليم: | 5-10 أيام |
| طريقة الدفع: | خطاب الاعتماد، D/A، D/P، T/T، ويسترن يونيون |
High-alumina brick is a kind of shaped refractory material in refractory brick products. It is made of refractory clay or other refractory raw materials. It belongs to silicon-alumina series products. Clay bricks, magnesia bricks, corundum bricks, mullite bricks, silicon carbide bricks and other materials, high-alumina bricks are widely used in refractory bricks. Etc.: Class I—Al2O3 content>75%; Class II—Al2O3 content of 60-75%; Class III—Al2O3 content of 48-60%.
High alumina brick is a kind of refractory material, the main component of this kind of refractory brick is AL2O3. The refractoriness of high alumina bricks is higher than that of clay bricks and semi-silica bricks. Belongs to refractory material. There are more Al2O3 in high alumina bricks, which are close to neutral refractory materials, and can resist the erosion of acidic slag and alkaline slag.
According to the content of AL2O3, it is divided into several grades such as 60, 70, 75, and 80.
High Aluminum Brick High aluminum brick
Main raw material: high bauxite clinker
Main features: good wear resistance, high fire resistance, up to 1750-1790 degrees Celsius, good impact resistance, long service life; can resist the erosion of acid slag.
Use: Blast furnace, hot blast stove, hot air pipe, hot metal ladle, etc
Technical data
| Item | HA60 | HA70 | HA75 | HA80 |
| AL2O3(%) | ≥60 | ≥70 | ≥75 | ≥80 |
| SIO2(%) | 32 | 22 | 20 | ≥18 |
| Fe2O3(%) | ≤2.5 | ≤2.0 | ≤1.8 | ≤1.5 |
| Refractoriness °C | ≥1750 | ≥1780 | ≥1800 | ≥1850 |
| Bulk density,g/cm3 | 2.35-2.4 | 2.45-2.5 | 2.5-2.55 | 2.75-2.8 |
| Softening temperature under load | ≥1450 | ≥1510 | ≥1520 | ≥1600 |
| Apparent porosity,% | ≤24 | ≤23 | ≤21 | ≤18 |
| Cold Crushing strength Mpa | ≥45 | ≥50 | ≥60 | ≥85 |
