Brand Name: – HR WHYTE A BFA BASED HR WHYTE A BAUXITE BASED HR WHYTE A SUPER HR WHYTE A HS HR WHYTE A SP
Type 90% Alumina Dense Castable 85% Alumina Dense Castable 90% Alumina Dense Castable

Super Strength

88% Alumina Dense Castable High Strength Spinel Added High Alumina Dense Castable
Nature of Bond Hydraulic Hydraulic Hydraulic Hydraulic Hydraulic
Installation Vibration Casting Vibration Casting/Patching Vibration Casting Vibration Casting Vibration Casting
Raw Material Base Brown Fused Alumina Low Ferric Bauxite Brown Fused Alumina Brown Fused Alumina HAA 86, CAC 75 , Spinel 78
Max Service Temp. 1750°C 1700°C 1750°C 1700°C 1700°C
Max Grain Size 5 mm 4 mm 5 mm 5 mm 5 mm
Water Required for Casting 8.0-9.0% 10.0-11.0% 8.0-9.0% 8.0-9.0% 9.0-11.0%
Chemical Analyses: –      (%) Typical Specification Typical Specification Typical Specification Typical Specification Typical Specification
Al2O3     : 90.30 90.0 Min 85.50 85.0 Min 90.30 90.0 Min 88.40 88.0 Min 84.50 84.0 Min
Fe2O3   : 0.50 0.8 Max 1.80 2.0 Max 0.50 0.8 Max 0.70 0.8 Max 1.70 1.8 Max
CaO      : 4.50 5.40 4.70 5.60 5.40
Physical Properties: –
B. D (gm/cc)

Drying at 110°C/24 hrs.

2.80 2.75 Min 2.65 2.60 Min 2.92 2.85 Min 2.78 2.75 Min 2.72 2.70 Min
Cold Crushing Strength (Kg/cm2):
Drying at 110°C/24 hrs. 650 600 Min 650 600 Min 910 850 Min 680 650 Min 550 530 Min
Fired at 800°C/3hrs. 435 380 700 450
Fired at 1100°C/3hrs. 350 310 450 400 280
Fired at 1550°C/3hrs. 680 650 710 700 550
Thermal Properties: –
Refractoriness, Orton / 0 C +37/+1820 37/1820 Min +36 36/1804 Min +37/+1820 37/1820 Min +36 36/1804 Min +36 36/1804 Min
PLC (%)   
Fired at 800°C/3hrs. – 0.05 – 0.02 – 0.05 – 0.05
Fired at 1100°C/3hrs. – 0.10 – 0.06 ± 0.20 – 0.10 ± 0.20 – 0.10 – 0.10 ± 0.30
Fired at 1550°C/3hrs. – 0.75 ± 0.80 Max – 1.20 ± 1.50 Max – 0.60 ± 0.60 Max – 0.80 ± 1.00 Max – 0.90 ± 1.00 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).

 

 

Brand Name: – HR WHYTE C HR WHYTE C SPL HR WHYTE K HR WHYTE K SPL HR WHYTE M
Type 50% Alumina Dense Castable 50% Alumina Dense Castable High Strength 60% Alumina Dense Castable 60% Alumina Dense Castable High Strength 80% Alumina Dense 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 Clay Calcined Bauxite Clay BFA , Calcined Diaspore
Max Service Temp. 1500°C 1500°C 1600°C 1600°C 1700°C
Max Grain Size 5 mm 5 mm 5 mm 5 mm 5 mm
Water Required for Casting 10.5-11.5% 10.0-11.0% 10-11% 10-11% 9.5 – 10.5%
Chemical Analyses: –      (%) Typical Specification Typical Specification Typical Specification Typical Specification Typical Specification
Al2O3     : 50.50 50.0 Min 50.50 50.0 Min 60.50 60.0 Min 60.25 60.0 Min 80.25 80.0 Min
Fe2O3   : 1.20 1.30 Max 1.20 1.30 Max 0.90 1.0 Max 0.90 1.0 Max 1.3 1.5 Max
CaO      : 4.20 4.60 4.30 4.70 5.45
Physical Properties: –
B. D (gm/cc)

Drying at 110°C/24 hrs.

2.18 2.10 Min 2.16 2.10 Min 2.22 2.20 Min 2.16 2.10 Min 2.65 2.60 Min
Cold Crushing Strength (Kg/cm2):
Drying at 110°C/24 hrs. 370 350 Min 450 400 Min 380 350 Min 480 450 Min 580 550 Min
Fired at 800°C/3hrs. 280 350 290 350
Fired at 1100°C/3hrs. 220 270 240 250 380
Fired at 1500°C/3hrs. 480 550
Fired at 1550°C/3hrs. 500 550 580 550 Min
Thermal Properties: –
Refractoriness, Orton / 0 C 31/1683 30/1665 Min 31/1683 30/1665 Min 32/1717 31/1683 Min 32/1717 31/1683 Min +36/+1804 36/1804 Min
PLC (%)                       
Fired at 800°C/3hrs. -0.05 -0.05 -0.05 -0.05
Fired at 1100°C/3hrs. -0.10 -0.10 -0.10 -0.10 -0.09 ± 0.20 Max
Fired at 1500°C/3hrs. -0.80 ± 1.0 Max -0.80 ± 1.0 Max
Fired at 1550°C/3hrs. -1.1 ± 1.5 Max -1.25 ± 1.5 Max -0.80 ± 1.00 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).