2024 Aluminium Alloy

2024 Aluminium Alloy

Known as the “aircraft alloy”, 2024 is heat-treatable aluminum alloy with copper as the primary alloying element, and magnesium. Its other metallic elements include iron, silicon, manganese and zinc, in descending quantity order. 2024 aluminium has properties higher than 2017 and 2014. Though formability is generally considered only fair in the cold state, it is one of the most popular alloys for cold heading and roll threading applications. Can be machined to a high finish, but should only be spot, seam or flash welded. Corrosion resistance is fair. Due its high strength and excellent fatigue resistance, 2024 it is commonly used on structures and components in the aviation and transportation industries. the main alloying addition is copper, and it is formulated for primary forming into wrought products.

2024 aluminium alloy is available in sheet, plate, bar, strip, wire, rod, and tube.

Physical Properties

Density: 2.77 g/cm3

Melting point: 510°C

Thermal Properties

Thermal expansion (@20-100ºC/68-212ºF): 22.8 (10-6/ºC)

Thermal conductivity (@25ºC/77ºF): 190 (W/mK)

Mechanical Properties

Elastic modulus: 70-80 Gpa

Poisson's ratio: 0.33

Weight % Si Fe Cu Mn Mg Cr Zn Ti Other Each Other Total Al
2024 USA 0.50 max 0.50 max 3.8-4.9 0.3-0.9 1.2-1.8 1.10 max 0.25 max 0.15 max 0.05 max 0.15 max Rem
2024A France 0.15 max 0.20 max 3.7-4.5 0.15-0.8 1.2-1.5 0.10 max 0.25 max 0.15 max` 0.05 max 0.15 max Rem
Alloy Designation US US Federal European UK Other
2024 QQ-A-200/3 2024-T4 Extruded bar WS 3.1354 Bare sheet BS 2 L97 2024-T351 Plate Airbus ABM1-1005
2024 AMS 4034 2024-T351 QQ-A-200/3 2024-T8 Extruded bar WS 3.1364 Alclad sheet BS 2 L98 2024-T4 Plate BAEM 0145 / BAEM 0172 A-U4G1
2024 AMS 4035 2024-T0 sheet , plate QQ-A-225/6 2024-T351 Cold finished bar WS 3.1355 BS L109 2024-T4 Clad sheet AIR 9048.630
2024 AMS 4036 2024-T3/T351 sheet QQ-A-225/6 2024-T4 Cold finished bar EN 2090 2024-T3 Clad sheet BS L110 2024-F Clad sheet AIR 9048.100
2024 Alclad one side QQ-A-225/6 2024-T851 Cold finished bar EN 2091 Clad sheet British Aerospace S071009 AIR 9048.110
2024 AMS 4037 2024-T3/T351 sheet , plate QQ-A-250/4 2024-0 Sheet and Plate EN 2318 2024-T3511 Extruded bar DTD 5100A Clad plate AIR 9048.120
2024 AMS 4040 2024-T0 Alclad sheet, plate QQ-A-250/4 2024-T3 Sheet and Plate EN 2321 AIR 9048.130
2024 AMS 4041 2024-T3/T351 Alclad sheet, plate QQ-A-250/5 2024-0 Alclad sheet and plate EN 2419 T351 AIR 9048.140 AIR 9049
2024 AMS 4077 2024-T0 Alclad sheet, plate QQ-A-250/5 2024-T3 Alclad sheet and plate EN 2633 2024-T3511 Extruded bar AIR 9051A
2024 AMS 4086 2024-T3 Seamless, drawn WW-T-700/3 2024-T3 Seamless, drawn tube EN 2638 AECMA 2710
2024 AMS 4087 2024-T0 Seamless tube MIL-T-50777 Seamless Tube EN 2703 2024-T4 Clad sheet ASN-A-3001
2024 AMS 4088 2024-T3 Seamless tube MIL-A-81596 Foil EN 3447 ASN-A-3010
2024 AMS 4112 2024-T6 (see AMS 4339) EN 3474 2024-T81 Sheet ASN-A-3012
2024 AMS 4119 2024-T351 (see AMS 4120) EN 3550 ASN-A-3058
2024 AMS 4120 2024-T4/T351 Bar, wire EN 3997 2024-T3 Sheet ASN-A-3351
2024 AMS 4152 2024-T3 Extrusions EN 3998 2024-T4 Sheet ASN-A-3048
2024 AMS 4164 2024-T3510 Extrusions EN 3999 2024-T351 Sheet CCT VA279
2024 AMS 4165 2024-T3511 Extrusions EN 4001 2024-T351 Clad sheet NCT 10-235-03MD
2024 AMS 4193 2024-T861 Sheet, plate EN 4101 2024-T4 Sheet NCT 15-235-06MB
2024 AMS 4194 2024-T361 1-1.5% Alclad EN 6000 NCT 15-235-07MB
2024 AMS 4195 2024-T861 1.5% Alclad
2024 AMS 4270 2024-T3 Alclad sheet
2024 AMS 4339 2024-T851 Bar, rod