PROPERTIES FOR DRY PROCESS PORCELAIN

	Porcelain
	Average Physical Properties
	UNITS
Absorption	%	1.0
Apparent Specific Gravity		2.4
Tensile Strength	lbs. / sq. in.	2500
Compressive Strength	lbs. / sq. in.	40000
Flexural Strength, (MOR)	lbs. / sq. in.	4000 - 4200
Resistance to Impact	Inch-lbs	2.40
	Thermal Properties
Coefficient of Thermal Expansion	1E^-6in/in/°C
	25 - 100°C	4.13
	25 - 400°C	4.88
	25 - 700°C	5.25

	Electrical Properties
Dielectric Strength	volts / mil
	volts/mil @ 0.25"	49.20
	volts/mil @ 0.40"	39.60
	volts/mil @ 0.75"	27.40
	volts/mil @ 1.00"	25.30
Power Factor	60 Hz (50Hz)	0.475
	1000 Hz	0.249
	106 Hz	0.009
Dielectric Constant	60 Hz (50Hz)	12.80
	1000 Hz	7.14
	106 Hz	4.97
Loss Factor	60 Hz (50Hz)	6.91
	1000 Hz	1.84
	106 Hz	0.05
Volume Resistivity	ohm-cm	0.176 x 1012
Surface Resistivity	ohms	4.4 x 1012


The information and data presented on this sheet is based on testing and research and believed to be accurate. Due to the
variant nature of mineral deposits as they are mined, the user is responsible for determining the suitability for their process
and their products/production needs. AP&P does not warrant the results and disclaims all liability for any inaccuracies or
omissions, or for any direct, special or indirect or consequential damages or losses of whatever kind resulting
from any causes, or from products and information mentioned on this sheet.

Akron Porcelain & Plastics Company
2739 Cory Avenue • P.O. Box 15157 • Akron, Ohio 44314-0157
Telephone: 330-745-2159 • Fax: 330-745-6688 • sales@akronporcelain.com

Copyright © 2008 Akron Porcelain & Plastics Company. All Rights Reserved