HR Whyte-K Castable

Mid-purity conventional castable refers to a type of refractory material that is used for lining low to mid-temperature industrial equipment where the heat impact ranges from 1000°C to 1600°C. They offer a balance between cost, performance, thermal insulation and durability, making them suitable for a wide range of industrial applications that require moderate refractory performance. Typically having low Alumina contentment of below 60%.

Features

  1. Versatility: These castables are designed to be versatile, allowing for a wide range of applications in various industries.
  2. Cost-Effective: With its balanced composition and performance characteristics, these castables provide a cost-effective solution for refractory linings without compromising on quality and reliability.
  3. Mechanical Strength: Medium-duty castables have a higher proportion of refractory aggregates, which provides them with improved mechanical strength and density compared to lightweight castables. This allows them to withstand physical stresses and structural loads in industrial applications.

Below are the range of Mid Purity conventional castable that HRWPL caters to its customers.

Brand Name: HR WHYTE C HR WHYTE C SPL HR WHYTE K HR WHYTE K SPL
Type 50% Alumina Dense Castable 50% Alumina Dense Castable High Strength 60% Alumina Dense Castable 60% Alumina Dense Castable High Strength
Nature of Bond Hydraulic Hydraulic Hydraulic Hydraulic
Installation Vibration Casting Vibration Casting Vibration Casting Vibration Casting
Raw Material Base Calcined Clay Calcined Bxt Calcined Bauxite Clay Calcined Bauxite Clay
Max Service Temp. 1500°C 1500°C 1600°C 1600°C
Max Grain Size 5 mm 5 mm 5 mm 5 mm
Water Required for Casting 10.5-11.5% 10.0-11.0% 10-11% 10-11%
Chemical Analyses: –      (%) Typical Specification Typical Specification Typical Specification Typical Specification
Al2O3     : 50.5 50.0 Min 50.5 50.0 Min 60.5 60.0 Min 60.25 60.0 Min
Fe2O3   : 1.2 1.30 Max 1.2 1.30 Max 0.9 1.0 Max 0.9 1.0 Max
CaO      : 4.2 4.6 4.3 4.7
Physical Properties: –
B. D (gm/cc) 2.18 2.10 Min 2.16 2.10 Min 2.22 2.20 Min 2.16 2.10 Min
Drying at 110°C/24 hrs.
Cold Crushing Strength (Kg/cm2):
Drying at 110°C/24 hrs. 370 350 Min 450 400 Min 380 350 Min 480 450 Min
Fired at 800°C/3hrs. 280 350 290 350
Fired at 1100°C/3hrs 220 270 240 250
Fired at 1500°C/3hrs 480 550
Fired at 1550°C/3hrs 500 550
Thermal Properties: –
Refractoriness, Orton /0C 31/1683 30/1665 Min 31/1683 30/1665 Min 32 31/1683 Min 32 31/1683 Min
PLC (%)                   
Fired at 800°C/3hrs. -0.05 -0.05 -0.05 -0.05
Fired at 1100°C/3hrs -0.1 -0.1 -0.1 -0.1
Fired at 1500°C/3hrs -0.8 ± 1.0 Max -0.8 ± 1.0 Max
Fired at 1550°C/3hrs -1.1 ± 1.5 Max -1.25 ± 1.5 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 Crete Super HR Crete Normal HR 60% Alumina Castable HR Cast 55
Type 70% Alumina Dense Castable 45% Alumina Dense Castable 60% Alumina Dense Castable 55% Alumina Dense Castable
Nature of Bond Hydraulic Hydraulic Hydraulic Hydraulic
Installation Vibration Casting Vibration Casting Vibration Casting Vibration Casting
Raw Material Base Calcined Bxt. Calcined Clay Calcined bxt. Calcined bxt.
Max Service Temp. 1550°C 1400°C 1500°C 1450°C
Max Grain Size 5 mm 5 mm 5 mm 5 mm
Water Required for Casting 10-11% 12-14% 11.0-12.0% 11.0-12.0%
Chemical Analyses: –  (%) Typical Specification Typical Specification Typical Specification Typical Specification
Al2O3     : 70.5 70.0 Min 46 45.0 Min 60.8 60.0 Min 55.6 55.0 Min
Fe2O3   : 3.5 5 Max 4 5 Max 1.2 1.5 Max 1.6 2.0 Max
CaO      : 4.2 4.6 4.6 4.6
Physical Properties: –
B. D (gm/cc) 2.55 2.5 Min 2.16 2.10 Min 2.25 2.2 Min 2.25 2.2 Min
Drying at 110°C/24 hrs.
Cold Crushing Strength (Kg/cm2):
Drying at 110°C/24 hrs. 370 350 Min 450 300 Min 380 350 Min 400 350 Min
Fired at 800°C/3hrs. 280 350    
Fired at 1100°C/3hrs 220 270 250 Min 350 300 Min 350 300 Min
Fired at 1500°C/3hrs 480 450 Min 550 550 500 min 500 450 min
Fired at 1550°C/3hrs
Thermal Properties: –
Refractoriness, Orton /0C 31/1683 30/1665 Min 31/1683 30/1665 Min 31/1683 30/1665 Min 31/1683 30/1665 Min
PLC (%)                   
Fired at 800°C/3hrs. -0.05 -0.05 …. ….
Fired at 1100°C/3hrs -0.1 -0.1 -0.3 -0.3
Fired at 1500°C/3hrs -0.8 ± 1.0 Max -0.8 ± 1.0 Max -0.8 ± 1.0 Max -1.2 ± 1.5 Max
Fired at 1550°C/3hrs
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 45 HR GUN 55
Type 45% Alumina Gunning Mass 50-55% Alumina Gunning Mass
Nature of Bond Hydraulic Hydraulic
Installation Gunning Gunning
Raw Material Base Calcined Bxt Calcined Bxt
Max Service Temp. 1450°C 1550°C
Max Grain Size 6 mm 6 mm
Water Required for Casting 12-14% (As per Nozzle) 7-8% (As per Nozzle)
Chemical Analyses: (%) Typical Specification Typical Specification
Al2O3     : 45.6 45.0 Min 52.8 52.0 Min
Fe2O3   : 1.8 2.0 Max 0.72 1.0 Max
CaO      : 9.3 3.3
Physical Properties: –
B. D (gm/cc) 2.1 2.00 Min 2.32 2.25 Min
Drying at 110°C/24 hrs.
Cold Crushing Strength (Kg/cm2):
Drying at 110°C/24 hrs. 200 150 Min 550 400 Min
Fired at 800°C/3hrs.
Fired at 1100°C/3hrs 150 350 300 Min
Fired at 1500°C/3hrs 300 200 min @ 1400 0C 400 350 Min
Fired at 1550°C/3hrs
Thermal Properties: –
Refractoriness, Orton /0C 32 / 1717 31 / 1683Min. 32 32/1717 Min
PLC (%)     
Fired at 800°C/3hrs.
Fired at 1100°C/3hrs -0.09 -0.12
Fired at 1500°C/3hrs -0.7 ± 1.00   Max @1400 0C -0.95 ± 1.50 Max
Fired at 1550°C/3hrs
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).