Alloy series
7xxx Series — Aluminium–Zinc
The highest-strength commercial series. Requires full traceability.
7005705070757A09
Properties
7xxx — Traits and Typical Uses
| Common grades | 7005 · 7050 · 7075 · 7A09 |
|---|---|
| Key traits | Highest strength · Heat-treatable · Lower corrosion resistance (stress corrosion risk) · Requires EN 10204 3.1 |
| Typical uses | Aircraft structure · Aerospace tooling · Bicycle frame · High-stress mould |
| Heat treatable | Yes — T4 / T5 / T6 / T651 tempers available |
Choose
How 7xxx Compares
Choose 7xxx when
Aircraft structure · Aerospace tooling · Bicycle frame · High-stress mould
Think again if
The part is welded or sits in a corrosive environment — 7xxx has stress-corrosion risk and needs proper temper selection (T73/T74).
Not Sure Between Two Grades?
Send the end use and the environment, and we will say which one we would run — including when the answer is "neither".
Ask for a Grade Recommendation