C-B Clay
Alternate Names: Spinks C-B, C-B Ball Clay
Description: Ball Clay
| Oxide | Analysis | Formula | Tolerance |
|---|---|---|---|
| CaO | 0.26% | 0.02 | |
| K2O | 0.84% | 0.03 | |
| MgO | 0.23% | 0.02 | |
| Na2O | 0.22% | 0.01 | |
| TiO2 | 1.50% | 0.07 | |
| Al2O3 | 26.42% | 1.00 | |
| P2O5 | 0.12% | - | |
| SiO2 | 57.78% | 3.71 | |
| Fe2O3 | 0.98% | 0.02 | |
| MnO | 0.02% | - | |
| LOI | 11.59% | n/a | |
| SO3 | 0.06% | n/a | |
| Oxide Weight | 341.17 | ||
| Formula Weight | 386.16 | ||
Notes
Relative Viscosity (1.2 Sp. Gr.):* 1.47
Casting Rate: (gms per 15 min/426 cm2):* 190
Water of Plasticity:* 20.2
% Dry Shrinkage:* 4.86
Dry M.O.R., psi:* 700
Cone 04 8 11
----
Fired Shrinkage:* 0.1% 1.0% 1.9%
Absorption:* 18.2% 16.9% 15.0%
M.O.R. psi:* 1600 3159 3497
Thermal Expansion, Cone 8: 0.48% at 700C
P.C.E.: 32
pH: 4.6
Oil Absorption: 35
Bulk Density, lbs per cubic foot: 35-40
Particle Size, Microns: 20 10 5 2 1 0.5 0.2
96% 88% 77% 60% 45% 27% 10%
*Specimens: De-aired, extruded, 50% ball clay, 50% flint
Related Information
Links
| Typecodes |
Ball Clay
Ball clays are abundant and very plastic and are used in all types of plastic forming bodies. They are not as white-burning or refractory as kaolins but lower in iron and fluxes than bentonites. |
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