EN AW-2024
EN AW-2024THE aerospace aluminum alloy — Al-Cu-Mg, introduced by Alcoa in 1931 as "Dural". Excellent fatigue resistance and damage tolerance. T3: UTS 400-470 MPa, good natural aging. Not weldable, poor corrosion resistance (often Alclad). Used for aircraft fuselage skins, wing skins, structural members under tension, ribs, and frames. Also: hydraulic valve bodies, gears, computer parts.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AA | USA | AA 2024 / UNS A92024 | A92024 | REF |
| 🇪🇺 | EN | Europe | EN AW-2024 / AlCu4Mg1 | EN AW-2024 | 100% |
Sources: AA, EN 573-3
Chemical composition comparison (wt%)
Side-by-side: EN AW-2024 (EN 573-3) vs EN AW-2024 / AlCu4Mg1 (EN) (EN 573-3)
| Element | EN AW-2024 (EN 573-3) | EN AW-2024 / AlCu4Mg1 (EN) | Overlap |
|---|---|---|---|
| Si | — | 0–0.5% | — |
| Mn | — | 0.3–0.9% | — |
Mechanical properties
Compatibility verdict
EN AW-2024 and EN AW-2024 / AlCu4Mg1: 100% composition match
Related materials
EN AW-6082
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).
EN AW-5083
3.3547The highest-strength non-heat-treatable aluminium alloy. Excellent corrosion resistance (especially seawater), good weldability. Standard alloy for shipbuilding, offshore, pressure vessels, cryogenic applications, and armour plate. Not for continuous service above 65°C under stress (SCC risk).
EN AW-7075
3.4365The classic high-strength aerospace aluminium alloy. Al-Zn-Mg-Cu composition provides the highest strength of all common aluminium alloys in T6 temper. Poor weldability and limited corrosion resistance. Used for aircraft structures, M16 rifle receivers, rock climbing gear, and precision mold plates.
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