EN AW-7049
EN AW-7049Ultra-high-strength Al-Zn-Mg-Cu alloy — Zn 7.2-8.4%, higher than 7075 (5.1-6.1%). T73 temper: UTS 510-570 MPa with improved stress corrosion resistance over T6. Used for aircraft structural forgings (landing gear, wing spars), missile components, and high-strength fasteners. Developed for thick-section forgings where 7075-T6 SCC resistance is insufficient.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AA | USA | AA 7049 / UNS A97049 | A97049 | REF |
| 🇪🇺 | EN | Europe | EN AW-7049 / AlZn8MgCu | EN AW-7049 | 100% |
Sources: AA, EN 573-3
Mechanical properties — Pro
T73
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ||
| Yield Strength | ||
| Elongation | ||
| Elastic Modulus | ||
| Density |
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3.2315High-strength structural aluminium alloy in the Al-Mg-Si family. One of the strongest 6xxx series alloys due to manganese addition. Replaced 6061 in many European applications. Used for trusses, bridges, cranes, transport, scaffolding, and marine applications. Heat treatable (T6/T651).
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