
| 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. | |||