Ceramic Balls

General Information:
Ceramic Balls may be used at temperatures up to 1725 Deg.C (3135 Deg.F). They are extremely hard, abrasion resistant and immune to all furnace atmospheres. Used for check valves where heat, corrosion and / or abrasion resistance is needed.
Basic Composition:
Aluminium Oxide	99.9% Max.
(AL2O3)
Mechanical Properties:
Hardness	Rockwell 45 N 81
Density	0.139lbs/cub.in.
Specific Gravity	3.80/3.84
Size Range:
Imperial	1/8" to 1.3/4" inclusive
Metric	2mm to 12.5mm to order
Tolerances:	1/8" to 1/2"		5/8" to 1.3/4"
Basic Dia.Tolerance	±.0001"		±.002"
Sphericity	.000025"		.0001"
Surface Finish (AA)	1.5 micro-inch		5 micro-inch
Corrosion Resistance:
Alumina Ceramic has good resistance to most corrosive media but is not recommended for use in Hydrochloric or Hydrofluoric acids or strong alkaline solutions.