Made from high purity copper, these balls are distinguished by their excellent mechanical properties and corrosion resistance. A key element for optimising electrical and thermal conductivity, these balls are ideal for various applications requiring increased performance. Marteau- Lemarie, with over 40 years of expertise, guarantees you a stock available in France for fast deliveries.
Chemical composition of the copper ball
| Element | type | Cu | Other |
|---|---|---|---|
| % | CW004A/C11000 | 99,900 min | 0.010 max |
Physical characteristics of the copper ball
| Ownership | Value | Unit |
|---|---|---|
| Density | 8.91 | g/cm3 |
| Young Module | 123 | GPA |
| Thermal expansion coefficient | 16.9 (DT=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 393 | W/m·K |
| Electrical resistivity | 17 | × 10 - 9 D·m |
| Specific heat | 385 | J/kg·K |
| Relative magnetic permeability | 1,010 | — |
| Magnetic behaviour | Paramagnetic | — |
Hardness and mechanical resistance of copper ball
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 40-120 | HV |
| Tensile failure load | 220-320 | MPa |
| Tensile failure load | 31-46 | psix10^3 |
| Exercise temperatures | -196/260 | ° C |
| Exercise temperatures | -320,8/500 | °F |
Available diameters and grades for copper ball
| Parameter | Value |
|---|---|
| Minimum diameter | 1 mm — 3/64′′′ |
| Maximum diameter | 60 mm — 2.3/8′′′ |
| Grades available | G100-200-500-1000 |
| Precision standards | ISO 3290 / AFBMA |
Corrosion resistance of copper ball
Good corrosion resistance in marine and industrial atmosphere, steam, alkalis, neutral saline solutions. They are attacked by oxidizing acids, halogens, sulphides, ammonia, seawater.
International Standards for Copper Ball
| EN | USA (AISI) | DIN (GER) | AFNOR (FRA) | UK | GOST (RUS) | GB (CHN) | JIS (JPN) |
|---|---|---|---|---|---|---|---|
| CW004A | C11000 | 2.0065 | Cu-a 1 | C101 | M0 | T2 | C 1100 |
Applications of copper ball
Copper balls are used in galvanic applications and electronics.
