Brand Name: – HR CAST 94 W HR CAST 97 W HR  95 HPM HR GUN 45 HR GUN 55 
Type 94% Alumina Dense Castable (High Strength) 97% Alumina Dense Castable  95% Alumina High Purity  Dense Castable 45% Alumina Gunning Mass 50-55% Alumina Low Cement Gunning Mass
Nature of Bond Hydraulic Hydraulic Hydraulic Hydraulic Hydraulic
Installation Vibration Casting Vibration Casting Vibration Casting/Trowelling Gunning Gunning
Raw Material Base White Tabular Alumina White Tabular Alumina White Tabular Alumina Calcined Clay Calcined Clay
Max Service Temp.  1800°C    1850°C    1750°C    1450°C    1550°C   
Max Grain Size  5 mm 5 mm 5 mm 6 mm 6 mm
Water Required for Casting 8.5-9.5% 8.5-9.5% 8.5-9.5% 12-14% (As per Nozzle) 7-8% (As per Nozzle)
Chemical Analyses: –      (%) Typical Specification Typical Specification Typical Specification Typical Specification Typical Specification
Al2O3     : 94.20 94.0 Min 96.20 96.0 Min 95.21 94.0 Min 45.60 45.0 Min 52.80 52.0 Min
Fe2O3   : 0.20 0.3 Max 0.20 0.3 Max 0.20 0.5 Max 1.80 2.0 Max 0.72 1.0 Max
CaO      : 4.50 5.0 Max 2.7 2.8 Max 2.90 3.10 Max 9.30 3.30
Physical Properties: –
B. D (gm/cc) 

Drying at 110°C/24 hrs.

2.84 2.80 Min 2.83 2.80 Min 2.86 2.80 Min 2.10 2.00 Min 2.32 2.25 Min
Cold Crushing Strength (Kg/cm2):
Drying at 110°C/24 hrs. 660 600 Min 450 400 Min 340 300 Min 200 150 Min 550 400 Min
Fired at 800°C/3hrs. 480 450 Min 300 280 Min 255 400
Fired at 1100°C/3hrs. 450 400 Min 275 250 Min 195 150 350
Fired at 1550°C/3hrs. 750 700 Min 425 400 Min 510

@1650 0C

300 200 min @ 1400 0C 400 350 Min
Thermal Properties: –
Refractoriness, Orton / 0 C +38/+1835 38/1835 Min +38/+1835 38/1835 Min +38/+1835 38/1835 Min 32 / 1717 31 / 1683Min. +32 32/1717 Min
PLC (%)    
Fired at 800°C/3hrs. – 0.06 – 0.06 – 0.06 – 0.06
Fired at 1100°C/3hrs. – 0.12 – 0.12 – 0.12 – 0.09 – 0.12
Fired at 1550°C/3hrs. – 0.25 ± 0.50 Max – 0.40 ± 0.80 Max – 0.40 ± 1.00  Max   @1650 0C – 0.70 ± 1.00   Max @1400 0C – 0.95 ± 1.50 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).