Metals: Aluminum EN AW-2024

EN AW-2024 alloy is one of the most popular aluminum alloys, particularly recognized for its high strength and good fatigability.

Mainly used in the aerospace industry, this alloy is ideal for critical applications under high loads and where excellent fatigue resistance is required.

Equivalences

Country	Description
France (AFNOR)	2024, AU4G
Germany (W.-Nr/DIN)	3.1354 / AlCuMg2
United Kingdom (BS)	L97, L98 (2024)
United States (ASTM/SAE/AISI)	2024
European Union (EN)	AN AW-2024
Japan (JIS)	A2024
Italy (UNI)	2024
Commonwealth of Independent States (GOST)

Properties

Chemical composition : Al (Balance), Cu (3.8-4.9%), Mg (1.2-1.8%), Mn (0.3-0.9%), Si (0.5% max).
Mechanical properties :
- Elastic limit : 240 MPa
- Tensile strength : 470 MPa
- Lengthening: 10-20%
Corrosion resistance : Moderate, often requires protective coatings or surface treatments to improve corrosion resistance.

Machinability

EN AW-2024 is well known for its good machinability, although the copper in the alloy can make it slightly more difficult to machine than pure aluminum alloys. It is recommended to use suitable cutting tools to achieve the best results.

Applications

Aeronautics: Aircraft structures, fuselage elements, rivets.
Military : Manufacturing of ammunition, vehicle components.
Sport: Climbing and cycling equipment, where lightness and resistance are crucial.