Ceramic Balls Chart

Friday July 30th, 2010

Ceramic Balls Chart

Ceramic Properties*	Zirconia (Yttria stabilized)	Silicon Carbide	Alumina Oxide	Ruby Sapphire	Silicon Nitride
Max. Useful Temperature	1800°F	2500°F	3180°F	3250°F	2552°F
Density	6.06/cm3 .219 lbs/in3	3.1 gm/cm3 .112 lbs/in3	3.86 gm/cm3 .139 lbs/in3	3.98 gm/cm3 .144 lbs/in3	3.2 gm/cm3 .116 lbs/in3
Compressive Strength	794,837 psi	400,000 psi	330,000 psi	300,000 psi	341,300 psi
Young's Modulus of Elasticity	30.6 x 106 21700 kgf/mm2	53 x 106 psi	54 x 106 psi	50 x 106 - 55 x 106 psi	47 x 106 psi
Hardness	1250 kgr/mm2	2400 Vickers	1365 Vickers	1570-1800 Vickers	1500-2000 Vickers
Thermal Conductivity	0.007 cal/cm, Sec 0	145 W/m °C80 BTU/hr ft°F	35.6 W/m °C. (@ 20°C) 6.3 W/m °C. (@800°C)	086 Cal/sec cm °C	.07 Cal/sec cm °C
Thermal Expansion	10.9 x 10-6/°C	2.5 x 10-6/°F	4.6 x 10-6/°F	3.2 x 10-6/°F	1.78 x 10-6/°F
Electrical Volume Resistivity @ 25°C	10¹⁰ Ω cm	10³ Ω cm	2 x 10⁶ Ω cm	10¹⁴ Ω cm	2.3 x 10⁵ Ω cm
Corrosion Resistance	Inert except for hydrofluoric and hot concentrated sulfuric acids.	Inert to most substances.	Inert to most substances, not recommended for environments of hydrochloric or hydrofluoric acids or strong alkaline solutions.	Inert to most substances even at very high temperatures.	Inert to most substances.
*Data from various industrial literature. Exact properties will vary from supplier to supplier.
Ceramic Balls Information Page

Industrial Tectonics Inc. | 7222 W. Huron River Drive | Dexter, MI 48130
Phone: 734-426-4681 | Toll Free: 866-816-8904