AlZn5,5MgCu – EN AW 7075

Al Rolled Sheets from AlZn5,5 MgCu – EN AW 7075 Al alloy

hardened alloy, high strength

Use: Mechanical engineering Heavily strained machine parts Defense industry

Processing qualities: Weldability TIG/MIG: not possible Technical anodising: good Decoration anodising: not suitable Formability: very good Corrosion resistance – normal atmosphere: conditional Corrosion resistance – sea atmosphere: critical

Physical characteristics: Density: 2,81 kg/dm3 Thermal conductivity: 115–140 W/mK Electric conductivity: 17 – 21 MS/m Thermal expansion factor (20–100°C): 23,6.10–6 K-1 Elastic modulus: 72 000 MPa

Mechanical characteristics reference of supplied Al sheet (temper T651): Strength Rm: 565 MPa Yield strength Rp0,2: 500 MPa Elongation A 50: 8% Hardness: 170 HB

Chemical composition in %: Si: max. 0,4 Fe: max. 0,5 Cu: 1,2 – 2,0 Mn: max. 0,3 Mg: 2,1 – 2,9 Cr: 0,18 – 0,28 Zn: 5,1 – 5,9 Ti + Zn: max. 0,2

Standard sizes of rolled sheet: Thickness: 8,0 – 120 mm Width: 1020 mm 1270 mm 1520 mm Length: 2020 mm 2520 mm 3020 mm

Size tolerance: All Al sheets in accordance with EN 485–3. Cut Al sheets up to thickness of 120 mm +/-0,2 mm horizontally and vertically, width tolerance in accordance with EN 485–3.

Al sheet planarity: In accordance with EN 485–3.

Al sheet surface: Rolled. Double sided protection foil made to order.