Portfolio Brief
Calcium Silicate Blocks
Janta Overseas, a leading manufacturer and exporter of calcium silicate boards, delivers high-performance products with superior mechanical and thermal characteristics. These rigid boards are designed for high-temperature applications, including furnaces of all types, and function effectively as a thin insulation lining when combined with lightweight refractory bricks or concrete.
Calcium silicate boards exhibit exceptional structural integrity, low thermal conductivity, and resistance to chemical and moisture degradation. Their inherent moisture-resistant and thermal insulating properties contribute to environmental protection.
The product's primary raw materials consist of silica dioxide (SiO2), calcium oxide (CaO), and natural wood fibers, which serve as reinforcing agents. These materials are combined with other components to achieve optimal performance. It is a high-performance, energy-efficient material with superior heat resistance.
We provide a diverse range of calcium silicate boards and pipes, including both medium and large sizes, tailored for specific applications and featuring varying densities and temperature grades. In addition to the boards, our Calcium Silicate materials come in clean, manageable, and easily installable pipe sections, segments, and cut sections.
Technical Specification
Calcium Silicate Blocks
*Tested in accordance with BS-874 Cold Face 40 deg. C. Also as per IS 9490, water calorimeter apparatus.
PARAMETERS
800- GRADE
1000- GRADE
1100 GRADE
PARAMETERS
Temperature, max service °C
800- GRADE
800 °C
1000- GRADE
1000 °C
1100 GRADE
1100 °C
PARAMETERS
Average Bulk Density, dry
800- GRADE
220-280 Kg/m3
1000- GRADE
240-280 Kg/m3
1100 GRADE
260-300 Kg/m3
PARAMETERS
Flexural strength, (min.)
800- GRADE
300 KN/m2
1000- GRADE
350 KN/m2
1100 GRADE
600 KN/m2
PARAMETERS
Compressive Strength,reduction in thickness not to exceed under a load of:
800- GRADE
1000- GRADE
1100 GRADE
PARAMETERS
Compressive Strength,reduction in thickness not to exceed under a load of:
I) 415 KN/m2, dry %
800- GRADE
5.0
1000- GRADE
5.0
1100 GRADE
5.0
PARAMETERS
Compressive Strength,reduction in thickness not to exceed under a load of:
II) 170 KN/m2, after 18 hrs immersion in water %
800- GRADE
5.0
1000- GRADE
5.0
1100 GRADE
5.0
PARAMETERS
Heat Resistance, under soaking
800- GRADE
1000- GRADE
1100 GRADE
PARAMETERS
Heat Resistance, under soaking
I ) Linear Reheating Shrinkage (max.)- 12 Hours %
800- GRADE
2 at 800 °C
1000- GRADE
2 at 950 °C
1100 GRADE
1.5 at 1050 °C
PARAMETERS
Heat Resistance, under soaking
II) Loss In Mass (max.) %
800- GRADE
14.0
1000- GRADE
12.0
1100 GRADE
10.0
PARAMETERS
Heat Resistance, under soaking
III) Compressive Strength, reduction in thickness not to exceed under a load of 345 KN/m2 (max.) %
800- GRADE
5.0
1000- GRADE
5.0
1100 GRADE
5.0
PARAMETERS
Thermal Conductivity at mean temperature (max.) W/m-K
800- GRADE
1000- GRADE
1100 GRADE
PARAMETERS
Thermal Conductivity at mean temperature (max.) W/m-K
300 °C
800- GRADE
0.078
1000- GRADE
0.078
1100 GRADE
0.076
PARAMETERS
Thermal Conductivity at mean temperature (max.) W/m-K
400 °C
800- GRADE
0.097
1000- GRADE
0.097
1100 GRADE
0.09
PARAMETERS
Thermal Conductivity at mean temperature (max.) W/m-K
500 °C
800- GRADE
-
1000- GRADE
0.118
1100 GRADE
0.11
PARAMETERS
Thermal Conductivity at mean temperature (max.) W/m-K
550 °C
800- GRADE
-
1000- GRADE
-
1100 GRADE
0.114
PARAMETERS
Moisture contents, by weight, (max.) %
800- GRADE
5.0
1000- GRADE
5.0
1100 GRADE
5.0
PARAMETERS
Alkalinity (pH)
800- GRADE
8-11
1000- GRADE
8-11
1100 GRADE
8-11
Availability Grades & Sizes
Temperature Grades
800 0C, 1000 0C & 1100 0C.
Sizes (With Thicknesses 25,40,50,75,100 mm) :
600x150mm, 600x300mm, 600x600 mm, 600x225mm.
600x150mm, 600x300mm, 600x600 mm, 600x225mm.
500x500 mm, 1000x500 mm, 1000x600mm, 900x600mm, 500x500mm.
1200x2400mm, 1200x1200mm, 1200x1000mm.
Features
- High mechanical strength.
- Low thermal conductivity.
- Resistant to moisture and chemicals.
- Excellent machinability to close tolerances.
- Dust free surface & Asbestos free.
- High electrical strength.
- High arc resistance.
Area of Application
- Heat protection, Load-bearing pipe columns.
- Dryer, ventilation and air conditioning technology.
- Insulating cut sections for industrial applications.
- Special applications for the construction of fireplaces.
- Furnace construction, special parts for induction furnaces.
- Machine and apparatus construction.
- Precision parts for machine and apparatus construction.
- Thermal and electrical insulation, Arc chutes.
- Oven and drier walls/cladding, Platen press insulation, Load bearing pipe supports.
- Heat shields, Thermal breaks, Furnace bottom.
- Working lining in low energy aluminium die cast holding.