HR-INSULCAST
HR 95% Al Castable

High Purity Conventional castable refers to a type of refractory castable that is commonly used in industrial applications such as kilns, furnaces, ladles, incinerators, foundries and other high-temperature environments. It is designed to withstand extreme heat, offers versatility to be used for various purposes, resistance to chemical corrosion, provides thermal insulation, cost effectiveness in maintenance & repair, and structural stability. Normally having high alumina content typically above 60%. With service temperatures above 1600°C.

Benefits of HRWPL HR High Purity Conventional Castable:

Extensive R&D: Though conventional castable are now widely available among all refractory manufacturers but HRWPL constantly strives to improve its formulations as per today’s raw material availability. The result is a range of castables that outperform competitors in challenging operating conditions.

Comprehensive range: HRWPL offers a wide range of conventional castables to suit various applications and industries comprising of various compositions, densities, and installation methods, ensuring the availability of a suitable solution for diverse customer needs.

Customized Solutions: HRWPL is flexible in providing customized conventional castables as we understand that one-size-fits-all approach may not suffice and that every application is different. Whether it’s the composition, cost effectiveness, particle size distribution, or additives we ensure that it aids in optimizing the performance and maximize the efficiency.

Exceptional Thermal Properties: To retain thermal stability, retain strength, low porosity and structural integrity even under extreme heat conditions, excellent thermal stability is required. It is one of our strengths in conventional castable which helps extend the lifespan of refractory linings, reducing maintenance costs and downtime.

Brand Name: – HR WHYTE A SPL HR WHYTE A HR WHYTE A SUPER HR WHYTE A HS HR WHYTE M
Type 90% Alumina Dense Castable  85% Alumina Dense Castable  90% Alumina Castable Super Strength  88% Alumina Castable High Strength  80% Alumina Dense Castable 
Nature of Bond Hydraulic Hydraulic Hydraulic Hydraulic Hydraulic
Installation Vibration Casting Vibration Casting/Patching Vibration Casting Vibration Casting Vibration Casting 
Base RM Corundum Low Ferric Bauxite Brown Fused Alumina Brown Fused Alumina BFA, Calcined Diaspore
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% 9.5 – 10.5%
Chemical Analyses: % Typical Specification Typical Specification Typical Specification Typical Specification Typical Specification
Al2O3: 90.3 90.0 Min 85.5 85.0 Min 90.3 90.0 Min 88.4 88.0 Min 80.25 80.0 Min
Fe2O3: 0.5 0.8 Max 1.8 2.0 Max 0.5 0.8 Max 0.7 0.8 Max 1.3 1.5 Max
CaO: 4.5 5.4 4.7 5.6 5.45
Physical Properties: –
B. D (gm/cc)  2.8 2.75 Min 2.65 2.60 Min 2.92 2.85 Min 2.78 2.75 Min 2.65 2.60 Min
Dry at 110°C/24 hrs.
Cold Crushing Strength (Kg/cm2):
Drying at 110°C/24 hrs. 650 600 Min 650 600 Min 910 850 Min 680 650 Min 580 550 Min
Fired at 800°C/3hrs. 435 380 700 450
Fired at 1100°C/3hrs 350 310 450 400 380
Fired at 1550°C/3hrs 680 650 710 700 580 550 Min
Thermal Properties: –
Refractoriness, OC / 0 C 37/1820 37/1820 Min 36 36/1804 Min 37 37/1820 Min 36 36/1804 Min +36/+1804 36/1804 Min
PLC (%)
Fired at 800°C/3hrs. -0.05 -0.02 -0.05 -0.05
Fired at 1100°C/3hrs -0.1 -0.06 ± 0.20 -0.1 ± 0.20 -0.1 -0.09 ± 0.20 Max
Fired at 1550°C/3hrs -0.75 ± 0.80 Max -1.2 ± 1.50 Max -0.6 ± 0.60 Max -0.8 ± 1.00 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).
Brand Name:  HR CAST 94 W HR 95 HPM HR CAST 96W HR CAST 97 W
Type 94% Alumina Dense Castable (High Strength) 95% Alumina High Purity Dense Castable 96% Alumina dense Castable 97% Alumina Dense Castable 
Nature of Bond Hydraulic Hydraulic Hydraulic Hydraulic
Installation Vibration Casting Vibration Casting/Trowelling Vibration Casting Vibration Casting
Base RM Corundum Corundum Corundum Corundum
Max Service Temp.  1800°C    1750°C    1700°C    1850°C   
Max Grain Size  5 mm 5 mm 5 mm 5 mm
Water Required for Casting 8.5-9.5% 8.5-9.5% 9.0-11.0% 8.5-9.5%
Chemical Analyses: – (%) Typical Specification Typical Specification Typical Specification Typical Specification
Al2O3: 94.2 94.0 Min 95.21 94.0 Min 95.5 95 Min 96.2 96.0 Min
Fe2O3: 0.2 0.3 Max 0.2 0.5 Max 1.7 0.3 Max 0.2 0.3 Max
CaO: 4.5 5.0 Max 2.9 3.10 Max 5.4 2.7 2.8 Max
Physical Properties: –
B. D. (gm/cc)  2.84 2.80 Min 2.86 2.80 Min 2.83 2.80 Min 2.72 2.80 Min
Drying at 110°C/24 hrs.
Cold Crushing Strength (Kg/cm2):
Drying at 110°C/24 hrs. 660 600 Min 440 400 Min 450 400 Min 430 400 Min
Fired at 800°C/3hr 480 450 Min 255 300 280 Min
Fired at 1100°C/3hrs. 450 400 Min 350 300 Min 275 250 Min 380 350 Min
Fired at 1550°C/3hrs. 750 700 Min 640 600 Min 425 400 Min 590 550 Min
Thermal Properties: –
PCE,OC/ 0C 38/1835 38/1835 Min 38 38/1835 Min 0.020708 38/1835 Min 38 38/1835 Min
Fired at 800°C/3hr -0.06 -0.06 -0.06
Fired at 1100°C/3hrs. -0.12 -0.12 -0.12 -0.1 ± 0.30
Fired at 1550°C/3hrs. -0.25 ± 0.50 Max -0.4 ± 1.00 Max    ± 0.80 Max -0.7 ± 0.80 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 GUN 80
Type 80% Alumina Gunning Material
Nature of Bond Hydraulic
Installation Gunning
Raw Material Base Calcined Bauxite, CAC 75 , Micro silica
Max Service Temp.  1650°C   
Max Grain Size  6 mm
Water Required for Casting 7-8% (As per Nozzle)
Chemical Analyses: – (%) Typical Specification
Al2O3: 82.25 78.0 – 80.0
Fe2O3: 1.80 2.0 Max
CaO: 5.00
Physical Properties: –

B. D (gm/cc) 

Drying at 110°C/24 hrs.

2.55 2.50 Min
Cold Crushing Strength (Kg/cm2):
Drying at 110°C/24 hrs. 325 280 Min
Fired at 800°C/3hrs.
Fired at 1100°C/3hrs. 180 160 Min
Fired at 1550°C/3hrs. 420 400 Min
Thermal Properties: –
Refractoriness, Orton / 0 C
PLC (%) 
Fired at 800°C/3hrs. – 0.22 ± 0.3 Max
Fired at 1100°C/3hrs. – 0.25 ± 0.5 Max
Fired at 1550°C/3hrs. – 1.25 ± 1.50Max
Packing: 25 Kg HDPE Bags                                     Storage Life: 6 Months                                           Delivery State: Dry
Indian Standards (IS). 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