EN AW – 7075 (AlZn55MgCu – 3.4365)

Stand: Juni 2015 - Quelle: DIN EN 573-3 / EN 515 / DIN 17611:2011

1. Chemical composition of EN AW – 7075

in the aftermath of DIN EN 573-3 (in % of the mass, rest AL)

SiFeCuMnMgCrZnTiRemarkOther elements
0,40,51,2-2,00,32,1-2,90,18-0,285,1-6,10,20,25Zr+Ti0,15

2. mechanical properties of EN AW – 7075

in the aftermath of DIN EN 485-2 Sheets and plates (common conditions)

ConditionNominal thicknessTensile strengthPlug-in limitUltimate elongationRigor
in mmRm in MPaRp0,2 in MPain % (min.)HBS
overup tominmaxminmaxA50A
T6516,012,55404608160
12,525,05404706161
25,050,05304605158
50,060,05254404155
60,080,04954204147
80,090,04903904144
90,04603603135
100,04103002119
120,03602602104
Press
T61505304706
Physical Properties  General properties
(Guide values for 20° C)
Density of g/cm32,80Resistance to:
Solidification range ° C480-640– Sea water4-5
Electrical conductivity MS/m19-23– Weather conditions4-5
Thermal conductivity W/(mK)130-160Hot formability
Therm. linear expansion-– extrusion presses5
Coeffizient 10-6/K23,4– Drop forging4
Modulus of elasticity N/mm270.000– Open die forging4
WeldabilitySurface treatment
Fusion weldingProtection anodizing3
– Gas6Anodizing (decorative)6
– WIG6Painting/Coating3
– MIG6
Resistance welding2Kontakt mit Lebensmittelno
Machinability T6512

3. Main application / Special features of EN AW – 7075:

Mould and tool making, cutting and punching tools with long service lives. Due to production, the core strength decreases continuously from 80 mm.

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