Made of polystyrene, these balls are distinguished by their lightness as well as notable stiffness and hardness. Although fragile, they offer a correct resistance to corrosion, but do not support UV rays. Note that color variations may occur. Marteau- Lemarie, with 40 years of experience, offers these logs in stock in France for quick delivery.
Physical characteristics of polystyrene ball (ps)
| Ownership | Value | Unit |
|---|---|---|
| Density | 1.05 | g/cm3 |
| Young Module | 3169 | MPa |
| Thermal expansion coefficient | 80 (T=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 0.12 | W/m·K |
| Volume resistivity | >10^13 | D·m |
| Relative magnetic permeability | <~1 | — |
| Magnetic behaviour | Diamagnetic | — |
| Friction coefficient | 0.4 | — |
| Absorption of moisture (24 h) | 0.15 | % |
Hardness and mechanical resistance of polystyrene ball (ps)
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 78-82 | Shore D |
| Exercise temperatures | -10/90 | ° C |
| Exercise temperatures | 14/194 | °F |
Available diameters and grades for polystyrene ball (ps)
| Parameter | Value |
|---|---|
| Minimum diameter | 1.5 mm — 1/16′′′ |
| Maximum diameter | 100 mm — 4′′ |
| Grades available | 0-I-II-III-IV-V |
Corrosion resistance of polystyrene ball (ps)
Good contact resistance with diluted acids and bases, aqueous solutions, detergents. Quite good in contact with oxidizing agents, oils and fats. Do not resist aromatic hydrocarbons, halogen aldehydes, ketones, esters, ethers.
Applications of polystyrene ball (ps)
Used as floating elements on non-aqueous liquids, electronic, medical and decorative applications.
