Shandong JinNai International Trade Co., Ltd.
Shandong JinNai International Trade Co., Ltd.
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Small Solid Aluminium Balls For Electronic Accessories Industry 0.5MM 0.8MM 1MM
Aluminium balls are characterized by good corrosion resistance and hard-wearing properties,
and also come with smooth surface finishes.
They can be used for special bearings and valves, incorporated into safety devices
in the automotive and electric industries or used in welding processes,
and also have a range of applications in the aviatian and aerospace sector.
Customers should be aware that all aluminium alloy balls are
susceptible to pitting and cracking in chloride-rich environments.
The basic class (1xxx) simply has good wear and corrosion resistance, and come with a minimum aluminium content of 99%.
However, they are also aluminium alloys, so traces of iron, magnesium, silicon, and copper will be present.
| Applications |
|---|
| Special bearings and valves, sealing elements (crushed balls), they are used in automotive industry (safety devices), aviation and aerospace industry, electronic industry, welding processes. |
| Type | %Si | %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 | - |
| 1070 | 0.20 max | 0.25 max | 0.03 max | - | 0.03 max | 0.03 max | 99.70 min | 0.05 max | 0.03 max | 0.07 max | - |
| 1100 | % (Si+Fe) max 0.95 | % (Si+Fe) max 0.95 | 0.05 max | 0.10 max | 0.05 - 0.20 | 0.03 max | 99.00 min | 0.05 max | 0.05 max | 0.10 max | - |
| Series | Description | Available heat treatments |
|---|---|---|
| 1xxx | Commercially pure Al | - |
| Property | Symbol | U.o.M. | Type | Notes | Values |
|---|---|---|---|---|---|
| Density | δ | [g/cm3] | Physical | Room temp. | 2.71 |
| Young's modulus | E | [GPa] | Mechanical | - | 70 |
| Specific heat | c | [J/kg-K] | Thermal | Room temp. | 875 |
| Coefficient of linear thermal expansion | α | [10^-6/ºC] | Thermal | (ΔT=0-100°C) | 23.4 |
| Thermal conductivity | λ | [W/(m·K)] | Thermal | Room temp. | 220.0 |
| Electric resistivity | ρ | [Ω*m*10^-9] | Electric | - | 28 |
| Relative magnetic permeability | µ | - | Magnetic | Paramagnetic | 1.004 |
| Property | Type | U.o.M. | Values | U.o.M. | Values |
|---|---|---|---|---|---|
| Hardness | Mechanical | [HV0.5] | 20-50 | - | - |
| Ultimate tensile strength | Mechanical | [MPa] | 65-165 | [psix10^3] | 10 - 23 |
| Service temperature | Thermal | [ºC] | -196 / 200 | [ºF] | -320.8 / 392 |
| Diameters (min/max) | U.o.M. | Diameters (min/max) | U.o.M. | Precision grades (ISO 3290 / AFBMA)
|
|---|---|---|---|---|
| 1.000 - 150.000 | [mm] | 3/64 - 6 | ["] | G100-200-500-1000 |
| Corrosion Resistance |
|---|
| 1xxx series alloys provide better corrosion resistance thanks to their purity. Good resistance on almost all natural waters. All aluminium alloys are subjected to pitting corrosion in presence of chlorides. |
