EN AW-2024 · AlCu4Mg1
The most widely specified aerospace aluminum. Outstanding fatigue performance and damage tolerance make it the default for tension-loaded airframe structure; T3xx tempers favor toughness, T8xx tempers add strength and stability. Clad variants restore surface corrosion resistance.
Material Data
Composition and physical properties
| Element | Limit / range |
|---|---|
| Si | ≤ 0.50 |
| Fe | ≤ 0.50 |
| Cu | 3.8 – 4.9 |
| Mn | 0.30 – 0.9 |
| Mg | 1.2 – 1.8 |
| Zn | ≤ 0.25 |
| Cr | ≤ 0.10 |
| Ti | ≤ 0.15 |
| Al | balance |
Limits per EN 573-3 / applicable registration. The governing specification on your order prevails.
| Property | Value |
|---|---|
| Density | 2.78 g/cm³ |
| Melting range | 502 – 638 °C |
| Thermal expansion (20–100 °C) | 23.2 µm/m·K |
| Elastic modulus | 73.1 GPa |
| Thermal conductivity | 121 W/m·K |
| Electrical conductivity | 30 % IACS |
Strength Data
Mechanical properties by temper
Typical room-temperature values for orientation. Design minimums depend on product form, thickness and the governing specification — request the applicable table with your inquiry.
| Temper | Yield strength (MPa) | Tensile strength (MPa) | Elongation (%) | Hardness (HB) |
|---|---|---|---|---|
| O | 75 | 185 | 20 | 47 |
| T3 | 345 | 485 | 15 | 120 |
| T351 | 330 | 460 | 13 | 120 |
| T4 | 325 | 470 | 19 | 120 |
| T6 | 395 | 475 | 8 | 125 |
| T8 / T81 / T851 | 450 | 480 | 6 | 128 |
Designations & Standards
How this alloy appears on drawings
| System | Designation |
|---|---|
| ISO / EN designation | AlCu4Mg1 |
| EN numeric | EN AW-2024 |
| UNS | A92024 |
| Werkstoff-Nr. | 3.1355 |
| Common product standards | AMS 4037, AMS QQ-A-250/4, AMS QQ-A-250/5 (clad), AMS 4112, AMS QQ-A-225/6, AMS QQ-A-200/3 · ASTM B209, B211, B221 · EN 2419 · WNr 3.1355 · AIR 9048-120 |
Supply Program
Available from Lipol as
| Product form | Standard | Alloy | Temper | Category |
|---|---|---|---|---|
| Plate | AMS 4037 | 2024 | T351 | Aerospace & Defense |
| Sheet | AMS QQ-A-250/4 | 2024 | T3 | Aerospace & Defense |
| Sheet | ASTM B209 | 2024 | T81 | Aerospace & Defense |
| Sheet | AMS QQ-A-250/5 | 2024 clad | T3 | Aerospace & Defense |
| Bar / Flat | AMS 4112 | 2024 | T6 | Aerospace & Defense |
| Bar / Flat | AMS QQ-A-225/6 | 2024 | T8 | Aerospace & Defense |
| Tube / Profile / Extrusion | ASME SB221 | 2024 | T651 | Aerospace & Defense |
| Tube / Profile / Extrusion | ASTM B221 | 2024 | T851 | Aerospace & Defense |
| Tube / Profile / Extrusion | AMS QQ-A-200/3 | 2024 | T8510/T8511 | Aerospace & Defense |
| Cold-Drawn Bar | EN 754-2 | 2024 | T4 | Cold Drawing |
| Cold-Drawn Tube | EN 754-7/-8 | 2024 | O | Cold Drawing |
| Cold-Drawn Tube | EN 754-7/-8 | 2024 | T3510 | Cold Drawing |
| Cold-Drawn Tube | EN 754-7/-8 | 2024 | T3511 | Cold Drawing |
Additional tempers, forms and specifications available on request — the table shows the standard program.
Applications
Where EN AW-2024 is the right answer
- Fuselage skins and wing structures
- Aircraft fittings and hardware
- Precision machined aerospace parts
- Motorsport and high-fatigue components
Specifying EN AW-2024?
State the temper, product form, dimensions and governing standard from the tables above, and we will confirm availability with a firm price and delivery date — typically within one business day.
Request a QuoteMaterial Engineering
Not sure EN AW-2024 is the right alloy?
Describe the application — load, environment, joining, finishing — and our engineers will confirm the choice or propose a better-value alternative.