ULCC FAMILY

Brand Name: – HR ULCC 45 HR ULCC 60 HR ULCC 80 HR ULCC 90 HR ULCC 95
Type 45 % Alumina ULC Castable 60 % Alumina ULC Castable 80 % Alumina ULC Castable 90 % Alumina ULC Castable 95 % Alumina ULC Castable
Nature of Bond Hydraulic Hydraulic Hydraulic Hydraulic Hydraulic
Installation Vibration Casting Vibration Casting Vibration Casting Vibration Casting Vibration Casting
Raw Material Base Calcined Clay Calcined Clay & Calcined Bauxite Calcined Bauxite Brown Fused Alumina (BFA) White Tabular Alumina (WTA)
Max Service Temp. 1550°C 1600°C 1700°C 1750°C 1800°C
Max Grain Size 6    mm 6 mm 6    mm 6 Mm 6 mm
Water Required for Casting 5.0-6.0% 5.0-6.0% 5.0-6.0% 4.5-5.5% 4.5-5.5%
Chemical Analyses: –      (%) Typical Specification Typical Specification Typical Specification Typical Specification Typical Specification
Al2O3     : 46.20 45.0 Min 60.90 60.0 Min 80.5 80.0 Min 90.5 90.0 Min 94.5 94.0 Min
Fe2O3   : 0.90 1.00 Max 1.40 1.50 Max 1.70 1.80 Max 0.80 1.00 Max 0.20 0.30 Max
CaO      : 0.95 1.00 Max 1.20 1.30 Max 0.90 1.0 Max 0.90 1.0 Max 0.90 1.0 Max
Physical Properties: –                    
B. D (gm/cc)

Drying at 110°C/24 hrs.

2.36 2.35 Min 2.62 2.60 Min 2.93 2.90 Min 3.02 2.90 Min 3.05 3.00 Min
Cold Crushing Strength (Kg/cm2):                
   Drying at 110°C/24 hrs. 430 375 Min 500 450 Min 500 450 Min 550 450 Min 500 450 Min
      Fired at 800°C/3hrs. 830 800 Min 840 800 Min 900 800 Min 1050 1000 Min 750 700 Min
Fired at 1100°C/3hrs. 850 825 Min 920 900 Min 1100 1000 Min 1150 1100 Min 1100 1000 Min
Fired at 1550°C/3hrs. 950 900 Min 1050 1000 Min 1300 1200 Min 1300 1200 Min 1270 1250 Min
Thermal Properties: –                    
Refractoriness, Orton / 0 C +32 32/1717 Min +36 36/1804 Min +37 37/1820 Min +38 38/1835 Min +38 38/1835 Min
PLC (%)                       
Fired at 800°C/3hrs. -0.05 ± 0.2 Max -0.09 ± 0.2 Max -0.05 ± 0.2 Max -0.05 ± 0.2 Max -0.05 ± 0.2 Max
 Fired at 1100°C/3hrs. -0.10 ± 0.2 Max -0.18 ± 0.3 Max -0.15 ± 0.3 Max -0.15 ± 0.3 Max -0.15 ± 0.3 Max
 Fired at 1550°C/3hrs. -0.55 ± 0.7 Max -0.60 ± 1.00Max -0.55 ± 0.8 Max -0.60 ± 0.8 Max -0.50 ± 0.8 Max
Water requirements indicated are based on laboratory test conditions. Actual water requirement may vary subject to site conditions. The properties shown are for vibratory cast material only unless specified otherwise. All values are based on test results on standard bars of size 160x40x40 mm. Test methods are guided by and based on various Indian Standards (IS).