Refractory and Foundry Field

Cenosphere used in refractory and foundry field

Benefits of cenosphere in refractory brick

  • Improve thermal conductivity
  • Easy to mould, and better shape
  • Increase compressive strength

Benefits of cenosphere in thermal insulation material

Compare with ordinary material, asbestos, diatomite, perlite , cenosphere has higher compressive strength, lower water absorption rate and good chemical stability. Meanwhile, cenosphere can reduce energy consumption of end equipment.
Our cenosphere C40 is a good choice for making insulated feeder and insulated riser in steel and iron casting field. The casting yield can be increased up to 85% by using our cenosphere.

Grade Particle Size(um) True Density(g/cc) Bulk Density(g/cc) Color Compressive Strength (Psi) Melting Point (℃) Hardness Mohs Floating Rate SiO2(%) Al2O3(%) Fe2O3%(%)
C30
10-500
0.85-0.95
0.35-0.45
Gray
3000
1500
5-6
95% min
56-60
28-35
1-4
C40
10-380
0.85-0.95
0.35-0.45
Gray
3000
1500
5-6
95% min
56-60
28-35
1-4
 
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