Aluminium square bar, manufactured in alloy 6026SP T6, a versatile alloy with balanced characteristics of strength, suitability for anodising, corrosion resistance and weldability. Suitable for all types of hydraulic, pneumatic and electronic applications. Lead and tin free, compliant with RoHS, ELV and REACH directives.
The 150×150 extruded aluminium square bar is made of lead-free 6026 alloy. An aluminium alloy belonging to the 6000 family, with magnesium and silicon as the main alloying elements.
It is an alloy developed to comply with the requirements of the RoHS standard, avoiding the use of lead, while maintaining the functionality of the 6026 alloy.
This alloy combines good machinability with good corrosion resistance, which can be improved by anodising, as well as medium-high mechanical characteristics.
This aluminium alloy has the following composition:
|
|
Si |
Fe |
Cu |
Mn |
Mg |
Cr |
Zn |
Ti |
Sn |
Pb |
Bi |
Others |
Al |
|
|
Indiv. |
Total |
|||||||||||||
|
min. |
0.60 |
– |
0.20 |
0.20 |
0.60 |
– |
– |
– |
– |
– |
0.50 |
|
|
|
|
max. |
1.40 |
0.70 |
0.50 |
1.00 |
1.20 |
0.30 |
0.30 |
0.20 |
0.05 |
0.05 |
1.50 |
0.05 |
0.15 |
Rest |
Bars manufactured in lead-free alloy 6026 are supplied in T6 or T9 treatment states.
Their mechanical properties are as follows:
|
Condition |
Main measurement mm |
Rm MPa |
Rp0.2 MPa |
A Min. |
HBW hardness |
||
|
min. |
Max. |
min. |
Max. |
||||
|
T6 (calibrated) |
≤ 80 |
370 |
– |
300 |
– |
8 |
95 |
|
T9 |
≤ 80 |
360 |
– |
330 |
– |
4 |
95 |
|
T6 (extruded) |
≤ 140 |
370 |
– |
300 |
– |
8 |
95 |
|
140 < l ≤ 200 |
340 |
– |
250 |
– |
8 |
90 |
|
|
200 < l ≤ 250 |
300 |
– |
200 |
– |
8 |
90 |
|
Lead-free alloy 6026 has the following physical properties:
|
Elastic modulus |
Coefficient of expansion per °C (20°-100°C) |
Thermal conductivity |
Resistivity µW·cm(2) /cm |
|
W/mK |
|||
|
69,000 MPa |
23.4 x10⁻⁶ |
172 |
3.9 |
The general behaviour of lead-free aluminium alloy 6026 is as follows in the areas listed below:
– Corrosion resistance: Very good.
– Weldability: Good.
– Machinability: Very good.
– Formability: Good.
– Suitability for anodising: Very good.
The classification is made in the following range: excellent, very good, good, fair and poor.
The main applications of lead-free alloy 6026 are as follows:
– Parts for applications requiring medium-high strength and excellent corrosion resistance, suitable for decorative or protective anodising.
– Hot-forged parts.
