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HC#5 Clay

Description: Ball Clay

Oxide Analysis Formula Tolerance
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.

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