HC#5 Clay

Description: Ball Clay

Oxide	Analysis	Formula
CaO	0.27%	0.02
K2O	0.31%	0.01
MgO	0.21%	0.02
Na2O	0.10%	0.01
TiO2	1.59%	0.07
Al2O3	27.65%	1.00
P2O5	0.14%	-
SiO2	56.25%	3.45
Fe2O3	1.13%	0.03
MnO	0.02%	-
LOI	12.40%	n/a
SO3	0.03%	n/a
Oxide Weight		323.41
Formula Weight		369.32

Notes

Particle Size Distribution:
>53 microns: 0.10 max
>10 microns: 18
<2 microns: 44

Modulus of Rupture, Kgf/cm2:
At 80% Relative Humidity: 7.5
Dried at 110C: 16.2

Casting Rate @ 62% solids (mm2/min): 2.0
% P84 Deflocculant Required for 5 Poise Slip: 0.6

1180C 1280C
Fired Absorption: 15% 6%
Fired Shrinkage: 9% 13%
Brightness: 84 84

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.

By Tony Hansen
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