Refractory Castables & Monolithics
Low-Cement, High-Alumina, Corundum & Application-Specific Castables
Engineered monolithic refractories for cement and lime kilns, steel and aluminium furnaces, petrochemical heaters, waste incinerators and general industrial furnaces.
PRODUCT RANGE
• Fireclay and high-alumina low-cement castables
• Ultra-low-cement and corundum castables
• Alumina-spinel and steel-ladle permanent-lining castables
• SiC-containing abrasion-resistant castables
• Self-flowing, vibration-cast and precast refractory shapes
TYPICAL APPLICATIONS
Kiln hood, cooler, preheater and calciner zones; reheating and heat-treatment furnaces; ladles and tundishes; petrochemical furnace linings; incinerator walls; burner blocks and high-wear areas.
TYPICAL TECHNICAL DATA — LOW-CEMENT CASTABLES
Property | Fireclay Grade | High-Alumina Grade | Corundum Grade
Al₂O₃ (%) | approx. 45 | approx. 75 | approx. 92
CaO (%) | ≤1.8 | ≤1.5 | ≤1.5
Bulk density, 110°C × 24h (g/cm³) | ≥2.30 | ≥2.60 | ≥3.00
Cold crushing strength, 110°C × 24h (MPa) | ≥72 | ≥75 | ≥85
Cold crushing strength, 1350°C × 3h (MPa) | ≥90 | ≥115 | ≥125
Permanent linear change, 1350°C × 3h (%) | ±0.3 | ±0.5 | ±0.5
Recommended maximum service temperature (°C) | 1450 | 1600 | 1700
TYPICAL TECHNICAL DATA — LADLE / TUNDISH CASTABLES
Property | Permanent Lining | Tundish Cover | Ladle Cover
Al₂O₃ (%) | ≥60 | ≥62 | ≥65
Bulk density (g/cm³) | ≥2.55 | ≥2.60 | ≥2.62
CCS, 110°C × 24h (MPa) | ≥40 | ≥50 | ≥60
CCS, 1550°C × 3h (MPa) | ≥60 | ≥70 | ≥80
Permanent linear change, 1550°C × 3h (%) | ±0.5 | ±0.5 | ±0.5
Selection depends on operating temperature, slag or gas chemistry, abrasion, installation method, dry-out schedule and target campaign life. Values above are typical reference values, not contractual specifications. Final grade and guaranteed data must be confirmed for each application.
Send the furnace drawing, operating temperature, atmosphere, wear zone and installation method for material selection and quotation.
