HR LCC-70 Castable

As the name suggest Low Cement Castable (LCC) is characterized by its low percentage of cement content which enhances the mechanical strength, improved resistance to thermal shock, and reduced water demand and porosity compared to conventional castables. It is a significant advanced formulation that combines the benefits of traditional castables with the advantages of reduced cement content, resulting in superior performance and longer service life. They are suitable for various applications such as furnace linings, ladle back up linings, soaking pit covers, tundish sprays, precast shapes, etc.

Benefits of LCC castable from HRWPL:

These castables are made of premium raw materials and have low cement content (max 5%), which makes them superior to conventional castables in many ways.

  • High Alumina and Low iron: HRWPL typically offers LCC castable with High Alumina content (40-95%) and lower iron content typically 1-1.9% which gives excellent resistance to slag and chemical attack.
  • Higher quality of Raw materials and cement are used to ensure the required mechanical strength and abrasion.
  • HRWPL offers low porosity (typically around 18%) and low linear shrinkage (less than 0.5%), which means it has low permeability and high density, preventing gas leakage and heat loss.
  • Our LCC castable has excellent flowability and workability, which means they can be easily mixed, poured, vibro-casted, forming gas tight joints and smooth surfaces.
  • It has higher Thermal conductivity which assists in transferring heat efficiently that can resist thermal shock and spalling.
  • We ensure that the water consumption percentage in our LC castable is between 5-6% under normal environmental condition which helps to minimize the formation of unwanted hydrates, resulting in improved refractory properties.

Below are the range of low cement castable that HRW cater to its customers.

Brand Name: – HR LCC 45 HR LCC 60 HR LCC 70 HR LCC 80 HR LCC 90
Type 45% Alumina LC Castable 60% Alumina LC Castable 70% Alumina LC Castable 80% Alumina LC Castable 90 % Alumina LC 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 Clay & Calcined Bauxite Calcined Bauxite Brown Fused Alumina (BFA)
Max Service Temp. 1550°C 1600°C 1600°C 1700°C 1700°C
Max Grain Size 6 mm 6 mm 6 mm 6 mm 6    mm
Water Required for Casting 5.0- 5.5% 5.0-6.0% 5.0-6.0% 5.0-6.0% 5.0-6.0%
Chemical Analyses: –      (%) Typical Specification Typical Specification Typical Specification Typical Specification Typical Specification
Al2O3     : 46.5 45.0 Min 60.8 60.0 Min 70.5 70.0 Min 80.5 80.0 Min 90.5 90.0 Min
Fe2O3   : 0.9 1.5 Max 1.2 1.50 Max 1.3 1.50 Max 1.7 1.80 Max 0.3 1.0 Max
CaO      : 1.6 1.7 Max 1.7 1.80 Max 1.8 1.90 Max 1.8 1.90 Max 1.5 1.60 Max
Physical Properties: –
B. D (gm/cc) 2.33 2.30 Min 2.62 2.60 Min 2.7 2.65 Min 2.93 2.90 Min 3.02 3.00 Min
Drying at 110°C/24 hrs.
Cold Crushing Strength (Kg/cm2):
Drying at 110°C/24 hrs. 750 700 Min 770 700 Min 800 750 Min 860 800 Min 980 950 Min
Fired at 800°C/3hrs. 850 800 Min 850 800 Min 850 970 1040 1000 Min
Fired at 1100°C/3hrs. 950 900 Min 950 900 Min 950 1060 1140 1100 Min
Fired at 1500°C/3hrs. 1050 1000 Min 1050 1000 Min
Fired at 1550°C/3hrs. 1100 1000 Min 1200 1150 Min 1350 1200 Min
Thermal Properties: –
Refractoriness, Orton / 0 C 32 32/1717 Min 36 36/1804 Min 36 36/1804 Min 37 37/1820 Min 37 37/1820 Min
PLC (%)   
Fired at 800°C/3hrs. -0.05 ± 0.2 Max -0.05 ± 0.2 Max -0.05 ± 0.2 Max -0.05 ± 0.2 Max -0.05 ± 0.2 Max
Fired at 1100°C/3hrs. -0.15 ± 0.3 Max -0.15 ± 0.3 Max -0.15 ± 0.3 Max -0.15 ± 0.3 Max -0.1 ± 0.3 Max
Fired at 1500°C/3hrs. -0.8 ± 1.00 Max -0.6 ± 1.00 Max
Fired at 1550°C/3hrs. -0.8 ± 1.00Max -0.8 ± 1.00Max -0.6 ± 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).

 

Brand Name: – HR LCC 95 HR LCC 70 M HR LCC 70 LI HR LCC 60 A HR LCC 60 S
Type 95 % Alumina LC Castable Mullite Based 70% Alumina LC Castable 70% Alumina LC Castable Low Iron Andalusite Based 60% Alumina LC Castable LC Castable Low PLC
Nature of Bond Hydraulic Hydraulic Hydraulic Hydraulic Hydraulic
Installation Vibration Casting Vibration Casting Vibration Casting Vibration Casting Vibration Casting
Raw Material Base White Tabular Alumina (WTA) Mullite Calcined Clay & BFA Andalusite Calcined Clay & Silimanite
Max Service Temp. 1800°C 1700°C 1650°C 1600°C 1600°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% 5.0-6.0% 5.0-6.0%
Chemical Analyses: –      (%) Typical Specification Typical Specification Typical Specification Typical Specification Typical Specification
Al2O3     : 94.2 94.0 Min 71.8 70.0 Min 70.5 70.0 Min 61 60.0 Min 60 58.0 Min
Fe2O3   : 0.2 0.30 Max 0.4 0.50 Max 0.75 0.80 Max 0.5 0.80 Max 0.9 1.0 Max
CaO      : 1.2 1.30 Max 1.7 1.80 Max 1.7 1.80 Max 1.5 1.60 Max 1.75 1.80 Max
Physical Properties: –
B. D (gm/cc) 3.12 3.10 Min 2.65 2.60 Min 2.7 2.65 Min 2.66 2.60 Min 2.6 2.55 Min
Drying at 110°C/24 hrs.
Cold Crushing Strength (Kg/cm2):
   Drying at 110°C/24 hrs. 1020 1000 Min 750 700 Min 760 700 Min 750 700 Min 780 750 Min
      Fired at 800°C/3hrs. 1080 1050 Min 840 800 Min 850 870 800 Min
Fired at 1100°C/3hrs. 1150 1100 Min 950 900 Min 980 800 925 900 Min
Fired at 1550°C/3hrs. 1350 1250 Min 1200 1100 Min 1080 1000 Min 1050 900 Min 1050 1000 Min
Thermal Properties: –
Refractoriness, Orton / 0 C 38 38/1835 Min 37 37/1820 Min 36 36/1804 Min 37 37/1820 Min 36 36/1804 Min
PLC (%)   
Fired at 800°C/3hrs. -0.05 ± 0.2 Max -0.05 ± 0.2 Max -0.05 -0.05 -0.05 ± 0.2 Max
 Fired at 1100°C/3hrs. -0.1 ± 0.3 Max -0.15 ± 0.3Max -0.15 -0.12 -0.15 ± 0.3 Max
 Fired at 1550°C/3hrs. -0.65 ± 0.8 Max -0.4 ± 0.60 Max -0.5 ± 0.70 Max 0.5 ± 0.80 Max -0.4 ± 0.60 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).