1. Chemical composition of EN AW – 6061
in the aftermath of DIN EN 573-3 (in % of the mass, rest AL)
| Si | Fe | Cu | Mn | Mg | Cr | Zn | Ti | Pb | Other elements |
| 0,4- | 0,7 | 0,15- | 0,15 | 0,8- | 0,04- | 0,25 | 0,15 | – | 0,15 |
| 0,8 | 0,4 | 1,2 | 0,35 |
2. mechanical properties of EN AW – 6061
in the aftermath of DIN EN 485-2 Sheets and plates (common conditions)
| Condition | Nominal thickness | Tensile strength | Plug-in limit | Ultimate elongation | Rigor | ||||
| in mm | Rm in MPa | Rp0,2 in MPa | in % (min.) | HBS | |||||
| over | up to | min | max | min | max | A50 | A | ||
| T4/T451 | 0,4 | 6,0 | 205 | – | 110 | – | – | – | 58 |
| 12,5 | 40,0 | 205 | – | 110 | – | – | 15 | 58 | |
| 40,0 | 80,0 | 205 | – | 110 | – | – | 14 | 58 | |
| T6/T651 | 0,4 | 1,5 | 290 | – | 240 | – | – | – | 88 |
| 1,5 | 3,0 | 290 | – | 240 | – | – | – | 88 | |
| 3,0 | 6,0 | 290 | – | 240 | – | – | – | 88 | |
| 6,0 | 12,5 | 290 | – | 240 | – | – | – | 88 | |
in the aftermath of DIN EN 755-2 pressed or DIN EN 754-2 drawn bars (common conditions)
| Condition | Nominal thickness | Tensile strength | Plug-in limit | Ultimate elongation | Rigor | ||||
| in mm | Rm in MPa | Rp0,2 in MPa | in % (min.) | HBS | |||||
| over | up to | min | max | min | max | A50 | A | ||
| T4 pressed | – | 200 | 180 | – | 110 | – | 13 | 15 | – |
| T6 pressed | – | 200 | 260 | – | 240 | – | 6 | 8 | – |
| T4 pressed | – | 80 | 205 | – | 110 | – | 14 | 16 | – |
| T6 pressed | – | 80 | 290 | – | 240 | – | 8 | 10 | – |
| Physical properties | General properties | ||
| (Guide values for 20° C) | |||
| Density of g/cm3 | 2,70 | Resistance to: | |
| Solidification range ° C | 580-640 | – Sea water | 2-3 |
| Electrical conductivity MS/m | 22-30 | – Weather conditions | 2 |
| Thermal conductivity W/(mK) | 170-200 | Hot formability | |
| Therm. linear expansion- | – extrusion presses | 2 | |
| Coeffizient 10-6/K | 23 | – Drop forging | 2 |
| Modulus of elasticity N/mm2 | 70.000 | – Open die forging | 2 |
| Weldability | Surface treatment | ||
| Fusion welding | Protection anodizing | 1 | |
| – Gas | 3 | Anodizing (decorative) | 3 |
| – WIG | 2 | Painting/Coating | 2 |
| – MIG | 1 | ||
| Resistance welding | 3 | Contact with food | yes |
| Machinability | |||
| T4/T651 | 2 | ||
3. Main application / Special features of EN AW – 6061:
Application for parts in aviation and in the USA instead of EN AW-6082. Especially in the USA also used for pressure vessels. This material is also selected for moulded and deep-drawn parts. The general properties largely correspond to the material EN AW-6082; only the resistance can become somewhat worse in the upper range of the permissible Cu content.