Brass and Phosphor Bronze Balls

General Information:
Brass and Phosphor Bronze Balls are used mainly in low cost non-return valves. They are tough, nonmagnetic and having good electrical conductivity are frequently used in electrical apparatus.
Basic Composition:
Brass	Approx. 60% Copper, balance Zinc
Phosphor Bronze	Approx. 92% Copper, balance Tin
Mechanical Properties:	Brass		Phosphor Bronze
Hardness	180-200 Brinell		200-220 Brinell
Density	0.304lbs/cub.in.		0.307lbs/cub.in.
Specific Gravity	8.4 approx.		8.5approx.
Size Range:
Imperial	1/16" to 7/8"		1/16" to2.1/2"
Metric	1mm to 25mm		1mm to 50mm
Tolerances:	Up to 1"		Over 1"
Basic Dia.Tolerance	±.002"		±.005"
Sphericity	.0005"		.0005"
Corrosion Resistance:
Brass and Phosphor Bronze Balls have excellent resistance to corrosion by water, steam, mineral oils and petroleum spirit.