Aluminium balls are characterized by good corrosion and wear resistance, as well as low weight. Excellent surface finish. The 1xxx series alloys are not heat treated. Balls can be delivered to passivity.
Chemical composition of aluminium alloy ball series 1XXX
| Element | type | If | Fe | Mn | Cr | Cu | Ti | Al | V | Mg | Zn |
|---|---|---|---|---|---|---|---|---|---|---|---|
| % | 1050 | 0.25 max | 0.40 max | 0.05 max | 0.05 max | 0.05 max | 0.05 max | 99.50 min | 0.05 max | 0.05 max | 0.07 max |
Physical characteristics of the aluminium alloy ball series 1XXX
| Ownership | Value | Unit |
|---|---|---|
| Density | 2.71 | g/cm3 |
| Young Module | 70 | GPA |
| Thermal expansion coefficient | 23.4 (DT=0-100°C) | × 10−6 /°C |
| Thermal conductivity | 220 | W/m·K |
| Electrical resistivity | 28 | × 10 - 9 D·m |
| Specific heat | 875 | J/kg·K |
| Relative magnetic permeability | 1,004 | — |
| Magnetic behaviour | Paramagnetic | — |
Hardness and mechanical strength of aluminium alloy ball series 1XXX
| Ownership | Value | Unit |
|---|---|---|
| Hardness | 20-50 | HV0.5 |
| Tensile failure load | 65-165 | MPa |
| Tensile failure load | 10-23 | psix10^3 |
| Exercise temperatures | -196/200 | ° C |
| Exercise temperatures | -320,8/392 | °F |
Available diameters and grades for aluminium alloy ball series 1XXX
| Parameter | Value |
|---|---|
| Minimum diameter | 1 mm — 3/64′′′ |
| Maximum diameter | 150 mm — 6′′′ |
| Grades available | G100-200-500-1000 |
| Precision standards | ISO 3290 / AFBMA |
Corrosion resistance of aluminium alloy ball series 1XXX
The 1xxx series alloys have the best corrosion resistance thanks to their purity. Good resistance in almost all types of natural water. All aluminium alloys may be subject to pitting corrosion in the presence of chlorides.
Applications of aluminium alloy ball series 1XXX
Ball bearings, valves. Use as a closing element of an orifice (flattened ball). Employees in the automotive industry (safety devices), aeronautics and aerospace, electronics, welding processes.
