Description
Fireclay refractory castables are made of fireclay, binder and additives mixed evenly, with low cost and certain fire resistance and thermal insulation.
High-alumina refractory castables are made of high-alumina bauxite as the main raw material, with high refractoriness, high refractoriness under load, good thermal shock resistance and mechanical strength.
Specifications
| Items | Grades | |||||||
| Clay-40 | Clay-45 | AL-50 | AL-60 | AL-65 | AL-70 | AL-80 | ||
| ω(Al2O3) / % | ≥40 | ≥45 | ≥50 | ≥60 | ≥65 | ≥70 | ≥80 | |
| Refractoriness / CN | ≥164 | ≥170 | ≥170 | ≥172 | ≥172 | ≥172 | ≥178 | |
| Density/(g/cm3) | 110℃×24h | ≥2.05 | ≥2.10 | ≥2.15 | ≥2.30 | ≥2.40 | ≥2.45 | ≥2.65 |
| CMOR / MPa | ≥4.0 | ≥4.0 | ≥4.0 | ≥5.0 | ≥6.0 | ≥6.0 | ≥7.0 | |
| CCS / MPa | ≥25 | ≥25 | ≥25 | ≥30 | ≥35 | ≥35 | ≥40 | |
| HPLC / % | ±0.8(1300℃×3h) | ±0.8(1350℃×3h) | ±0.8(1400℃×3h) | ±0.8(1500℃×3h) | ||||
Applications
Fireclay refractory castable is often used in the lining, flue, chimney and other parts of general industrial kilns, withstanding certain temperatures and thermal stresses.
High-alumina refractory castable is mainly used in blast furnaces, electric furnaces, rotary kilns and other equipment in high-temperature industrial fields such as metallurgy, building materials, and chemicals.
High-alumina refractory castables have high refractoriness, high mechanical strength and good thermal shock resistance. So they can resist high-temperature melt erosion, mechanical wear and frequent thermal shock, ensuring stable operation and long life of the equipment.
