Specifications

Chemical Al2O3: 70% min ; Fe2O3: 5% max TiO2:5%max  SiO2 (%): 8~20% 

 MgO Content (%): 0.5%max  CaO (%):0.5%max K2O:0.5%max Na2O:0.5%max

Grain type: ball, spherical

Angularity: 1.1 max, similar to ball

Packing density: 1.95-2.05 g/cm3

Refractoriness: 1790 C min

Thermal expansion: 0.13% (10 min at 1000 C )

Size: 10-14 mesh; 20-30 mesh; 30 mesh; 40-70 mesh; 100-140 mesh; 170 mesh

 Description

Ceramic Foundry sand is made from fine bauxite, by re-fused and blown to ball type. With advantage of fine surface smooth finish and air permeability, it is a new type casting material for precision casting, coated sand and self hardening sand etc.

Advantages

Spherical grain, low thermal expansion, good anti-breakness, well refractory, low density, neutral materials

Application

Waterglass bonded sand, resin bonded sand, precision casting, Expendable Pattern Casting (EPC), Copper and Aluminium articles polishing

Packing

25kg/bag or others