Old Hickory No 6 Ball Clay

Description: Legacy ball clay

Oxide	Analysis	Formula
SiO2	50.10%	2.58
Al2O3	33.00%	1.00
Fe2O3	0.90%	0.02
TiO2	1.30%	0.05
CaO	1.40%	0.08
MgO	0.30%	0.02
K2O	0.40%	0.01
Na2O	0.70%	0.03
LOI	12.00%	n/a
Oxide Weight		272.31
Formula Weight		309.44

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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.

Data

% < 0.5 microns	43%
Drying Shrinkage	8.0%
Firing Shrinkage	Cone 9: 8.0%
Water absorption	Cone 9: 0%
Dry M.O.R. (50% Silica)	500 psi

By Tony Hansen
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