650 Degree Calcium Silicate Pipe For Boiler And Gas Tube

1. Electrical equipment heat insulation
2. Metallurgical equipment heat insulation
3. Glass furnace equipment heat insulation
4. All kinds of furnace body heat insulation
5. Cement kiln heat insulation
6. Shipyard cabin heat insulation
7. Petrochemical industry heat insulation

Product Description

The powder of calcium silicate is free-flowing and white in color. A siliceous sedimentary rock, naturally occurring limestone and diatomaceous earth serve as its source. Among a group of compounds that can be generated by combining calcium oxide and silica in different ratios, it is one such example. Alite (Ca3SiO5) is composed of 3CaO·SiO2, (Ca2SiO4) of 2CaO·SiO2, (Ca3SiO7) of 3CaO·2SiO2, and wollastonite (CaSiO3) of CaO·SiO2. The components of these compounds cannot be increased or decreased. Its physical water absorption is high and bulk density is low.

Products Applications

  • Insulation for electrical equipment
  • Heat insulation for metallurgical equipment
  • Heat insulation for glass furnace equipment
  • All kinds of furnace body heat insulation
  • Insulation for cabin heating in a shipyard
  • Heat insulation for a cement kiln
  • Heat insulation in the petrochemical industry

How To Produce The Calcium Silicate Pipes

Porous calcium silicate pipe, also called asbestos-free pipe calcium silicate, is produced by mixing, heating, gelling, molding, autoclaving, and drying processes to create a fiber-reinforced calcium silicate pipe. A new variation of rigid insulation material is the calcium silicate pipe.


Properties Calcium   silicate pipe
1000℃ 650℃
Bulk Density (kg/m3) 230 230
Compressive Strength(MPa) 0.52 0.6
Thermal Conductivity (w/m.k) 0.05 0.062
Specification Temp. (℃) 1000 650
Linear Shrinkage after Heating (%) 1.5 (1000℃, 3hrs) 1.5(650℃, 3hrs)
Bending Strength (MPa) 0.45 0.3



  • The utilization of these backing insulation materials is clearly effective for conserving energy due to their ability to accumulate less heat and provide increased heat protection.
  • The boards maintain good durability even after prolonged use as they don’t shrink, deform or produce powder and their insulation performance remains constant.
  • Woodworking tools that are commonly used can be utilized to cut it into any desired shape with ease, and it can be combined with other materials by simply gluing and molding it.
  • The calcium silicate tube possesses the highest rate strength among thermo inorganic materials, enabling significant reduction in the overall weight of kilns and stoves during the design phase.
  • Environmental protection involves producing products that are free from corrosives and toxicity. These products should not emit exhaust gases or emit peculiar smells, especially under high temperatures. Additionally, they should not cause any harm or pollution to both the environment and human body. Such products can be classified as environmentally friendly.