EN AW – 6061 (AlMg1SiCu)

Stand: September 2018 - Quelle: DIN EN 573-3 / EN 515 / DIN 17611:2011

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.

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