Old Hickory No. 6 Kentucky Ball Clay

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Old Hickory No. 6 Kentucky Ball Clay (discontinued **)
Categories:	Ceramic; Clay; Ball Clay
Material Notes:	No. 6DC is a highly kaolin clay that can be used as a filler grade material where presence of some 200 M quartz residue is not harmful. Applications can include a variety of refractory compositions as well as non-ceramic building products such as cement and fiberglass reinforced construction board. Information provided by Old Hickory Clay Company
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Physical Properties	Metric	English	Comments

Particle Size	0.50 µm	0.50 µm	50% of particles less than
	0.53 µm	0.53 µm	Median particle diameter
	1.0 µm	1.0 µm	61% of particles less than
	<= 5.0 µm	<= 5.0 µm	84% of particles less than
pH	6.0	6.0
Soluble Sulfates	50.0 ppm	50.0 ppm
Specific Surface Area	18.8 m²/g	18.8 m²/g

Mechanical Properties	Metric	English	Comments
Modulus of Rupture	0.00307 GPa	0.445 ksi	Dry Modulus of Rupture, 50% clay/50% flint, cast bars

Thermal Properties	Metric	English	Comments
Shrinkage	4.6 %	4.6 %	Cone 04, Linear Fired Shrinkage
	5.5 %	5.5 %	Linear Drying Shrinkage
	6.0 %	6.0 %	Cone 3, Linear Fired Shrinkage
	8.0 %	8.0 %	Cone 11, Linear Fired Shrinkage

Component Elements Properties	Metric	English	Comments
Al2O3	29.05 %	29.05 %
CaO	0.12 %	0.12 %
Fe2O3	0.99 %	0.99 %
K2O	0.52 %	0.52 %
Loss on Ignition(%)	9.39 %	9.39 %
MgO	0.25 %	0.25 %
Na2O	0.080 %	0.080 %
SiO2	57.07 %	57.07 %
TiO2	2.43 %	2.43 %

Descriptive Properties
Absorption (%)	12.5		Cone 3, Fired
	15.2		Cone 04, Fired
	6.3		Cone 11, Fired
CEC/MBI (meg/100 ml)	7.5
Crude Color	White
Filtration (ml)	25
Pyrometric Cone Equivalent (PCE)	32
Water of Plasticity (%)	30
Wet Sieve Residue (%)	1.05		Wet Sieve Residue, +200 mesh

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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