What is the EN AW 7000 Series?
The zinc-alloyed 7000 series is used in critical engineering applications requiring a combination of very high strength, fatigue resistance and low weight. Some grades are suitable for welded structures, while others focus on aerospace and tooling.
- Among the highest-strength aluminium families.
- Used in aerospace, defence and tooling.
- Surface and corrosion control are important.
- Includes high-performance grades such as 7075 and 7050.
| EN AW Code | Typical Application Area |
|---|---|
| EN AW 7003 | Complex profiles, lightweight sports equipment and automotive chassis. |
| EN AW 7005 | Bicycle frames; can strengthen after welding without full post-weld heat treatment. |
| EN AW 7020 | Welded bodies of military armoured vehicles and heavy structures. |
| EN AW 7022 | Blocks used in plastic and injection mould production. |
| EN AW 7050 | Thick aerospace sections; resistant to corrosion fatigue. |
| EN AW 7075 | Aircraft alloy; strength comparable to tool steels, defence parts and gears. |
| EN AW 7475 | Ultra-pure version of 7075 with improved fracture toughness. |
Why Proper Alloy Selection Matters
Choosing the correct aluminium alloy directly affects strength, corrosion resistance, weldability, anodising quality, machinability and cost efficiency. Different EN AW designations in the same product form may significantly change product lifetime and service reliability.
Technical Evaluation with Kurtoglu Aluminium
Kurtoglu Aluminium supports material selection according to project requirements, including alloy, temper, surface condition and dimensions. Alternative material options can be evaluated according to operating conditions.