| Polypropylene balls (PP Balls) |
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Polypropylene ball
Low weight and water absorption. They are used in fluid level gauges, flowmeters, valves, blood transfusion kits, apor and evaporation shields in electrolityc solutions and all applications requiring good corrosion resistance. |
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Tan Kong specializes in precision plastic balls, available in the following grades and materials.
| Grade |
Diameter Tolerance |
Roundness Tolerance |
Diameter Tolerance |
Roundness Tolerance |
| Unit |
inch |
inch |
mm |
mm |
| 0 |
0.0005 |
0.0005 |
0.0127 |
0.0063 |
| 1 |
0.001 |
0.0005 |
0.0254 |
0.0127 |
| 2 |
0.002 |
0.001 |
0.050 |
0.025 |
| 3 |
0.005 |
0.005 |
0.127 |
0.127 |
| 4 |
0.015 |
N/A |
0.381 |
N/A |
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| Item |
PP Ball (Polypropylene Ball) |
| Material |
Polypropylene |
| Density(g/cc) |
0.91 |
| Hardness (Rockwell R scale) |
90 |
| Wear resistant (kgf/cm2 ) |
385~560 |
| Wear Absorption(%) |
0.03 |
| Heat Resistance (°C) |
120 |
| Resistance to weak acid |
excellent |
| Resistance to strong acid |
fair |
| Resistance to weak alkali |
excellent |
| Resistance to strong alkali |
good |
| Resistance to organic solution |
good |
| Feature |
Light weight,good dielectric;good tensile strength Colors easily, Matte surface finish |
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