Old Hickory No. 3 Ball Clay

Description: Legacy ball clay

Oxide	Analysis	Formula
SiO2	54.20%	3.08
Al2O3	29.90%	1.00
Fe2O3	1.70%	0.04
TiO2	1.60%	0.07
CaO	0.50%	0.03
MgO	0.80%	0.07
K2O	0.30%	0.01
Na2O	0.60%	0.03
LOI	16.70%	n/a
Oxide Weight		305.66
Formula Weight		366.94

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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

Drying Shrinkage	8.0%
Firing Shrinkage	Cone 9: 10.0%
Water absorption	Cone 9: 0%
Dry M.O.R. (50% Silica)	600 psi

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