Made from phosphorous bronze, these balls combine mechanical resistance and electrical conductivity. Ideal for applications requiring corrosion durability, they are particularly suitable for demanding environments. Marteau-Lemarie, with 40 years of expertise, guarantees you a stock available in France for fast deliveries and personalized advice.
Chemical composition of phosphorous bronze ball
| Element | type | P | Cu | Sn | Zn | Pb | Fe |
|---|---|---|---|---|---|---|---|
| % | CuSn5 | 0,030-0,35 | balance | 4,20-5,80 | max. 0.30 | 0.05 max | max 0.10 |
Physical characteristics of phosphorous bronze ball
| Ownership | Value | Unit |
|---|---|---|
| Density | 8.92 | g/cm3 |
| Young Module | 116 | GPA |
| Thermal expansion coefficient | 18.2 (DT=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 65.8 | W/m·K |
| Electrical resistivity | 115 | × 10 - 9 D·m |
| Specific heat | 380 | J/kg·K |
| Relative magnetic permeability | 1,20 | — |
| Magnetic behaviour | Paramagnetic | — |
Hardness and mechanical resistance of phosphorous bronze ball
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 75-105 | HRB |
| Hardness | 135-276 | HV10 |
| Tensile failure load | 600-700 | MPa |
| Tensile failure load | 87-102 | MPa |
| Exercise temperatures | -196/400 | ° C |
| Exercise temperatures | -320,8/752 | °F |
Available diameters and grades for phosphorous bronze ball
| Parameter | Value |
|---|---|
| Minimum diameter | 1.5 mm — 1/16′′′ |
| Maximum diameter | 180 mm — 7′′ |
| Grades available | G100-200-500-1000-2000 |
| Precision standards | ISO 3290 / AFBMA |
Corrosion resistance of phosphorous bronze ball
Resist contact with water, steam, mineral oils, gasoline. Do not resist acids and alkalis. Resist less corrosion compared to Br-Al alloys.
International Standards for Phosphorous Bronze Ball
| CEN | USA (AISI) | DIN (GER) | AFNOR (FRA) | UK | GOST (RUS) | GB (CHN) | JIS (JPN) |
|---|---|---|---|---|---|---|---|
| CW451K | C51000 | – | CuSn5Zn4 | PB 102 | – | QSn4-0.3 | C5102 |
Applications of phosphorous bronze ball
Special valves and pumps, non-return valves, special bearings, electric conductors.
