SP BWS Ball Clay

Description: WBB Devon Ball Clay Group 2

Oxide	Analysis	Formula
CaO	0.20%	0.01
K2O	1.40%	0.04
MgO	0.40%	0.03
Na2O	0.10%	-
TiO2	0.80%	0.03
Al2O3	33.80%	1.00
SiO2	47.60%	2.39
Fe2O3	1.20%	0.02
LOI	14.50%	n/a
C	3.00%	n/a
Oxide Weight		258.02
Formula Weight		312.75

Notes

Particle Size (e.s.d.)
125 microns - 1.00
10 microns - 97
2 microns - 84
1 microns - 75
Modulus of Rupture at 110C
Mn/M2 - 4.8
lbf/in2 - 700
Defloculant Required - (3:1 Na₂SiO₃(C.100):Na₂CO₃) - 0.5
Water Absorption
1120C - 9.0
1220C - 1.50
Shrinkage Dry to Fired
1120C - 14.50
1220C - 18.00
Reflectance 464nm
1120C - 80
1220C - 73
Refractoriness
Cone - 33, 1730C

Related Information

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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.

By Tony Hansen
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