KT #1-4 Ball Clay

Alternate Names: KT1-4, KT#1-4

Description: Tennessee Ball Clay, KT 1-4

Oxide	Analysis	Formula
CaO	0.20%	0.01
K2O	1.40%	0.06
MgO	0.50%	0.05
Na2O	0.20%	0.01
TiO2	1.90%	0.09
Al2O3	25.80%	1.00
SiO2	60.50%	3.98
Fe2O3	1.00%	0.02
LOI	8.70%	n/a
Oxide Weight		361.74
Formula Weight		396.21

Notes

A coarse-grained, fast casting Ball Clay used in all types of casting applications, but primarily used in artware. It is a blend containing mostly SGP#1 and some OM#4. It is blended to specification (thus the blend is adjusted as the constituents vary to maintain physical properties). KT1-4 is slightly less plastic than CDI blend, but more plastic and thus less sensitive to deflocculants than SGP.

Physical Properties
===================
Water of Plasticity: 31.8%
Dry Shrinkage: 5.2%
pH: 4.2
Dry M.O.R. (50:50 ball clay:silica, psi): 463
M.B.I. (meq/100g): 6.2
Specific Surface Area (sq-metre/g): 18
Soluble sulfur SO₄: Low

P.C.E.: 31

Particle Size, Microns: 20 10 5 2 1 0.5 0.2
(% finer than) 94% 87% 74% 59% 47% 35% 25%

Fired Properties
================
Cone 5 10
Total Shrinkage: 11.3% 14.2%
Absorption: 12.1% 4.9%

Shipped from Mayfield, KY

*This info is from a data sheet from Jan 2013

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.
Materials	Spinks Blend Ball

Data

Drying Shrinkage	6.5%
Modulus of Rupture - Dry	825 psi

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