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EN AW-2024 (AlCu4Mg1) aluminium round bar
Aluminium round bars

EN AW-2024 (AlCu4Mg1) aluminium round bar

A high-strength, readily machinable alloy grade. Its primary alloying element is copper (Cu), which gives it exceptional strength but also limits its corrosion resistance and weldability.

  • Very good machinability
  • Higher than medium strength
  • Excellent formability
Field of use
  • Machine superstructures
  • High-strength structures
  • Defence industry
  • Aerospace industry
Alloy grade
EN AW-2024 (AlCu4Mg1)
Tempers
T3
Formats
Bar stock – extruded, drawn execution

EN AW-2024 – chemical composition1

(EN 573-3)

Specifications (%)

Remainder: Aluminium

 Others
Si Fe Cu Mn Mg Cr Ni Zn Ti Ga V Notes Each Total2
0,50 0,50 3,80 - 4,90 0,30 - 0,90 1,20 - 1,80 0,10 0,25 - 0,15 - - - 0,05 0,15
1 Chemical specifications are in mass %. Where no range is given, the alloying content is the maximum value.
2 Includes all elements for which no separate limit is specified.

EN 754-2 – Mechanical properties: drawn aluminium round bars

The data below are indicative and show typical values according to the standard.

Delivery temper Diameter
(mm)		 Tensile strength Rm (MPa) Proof strength Rp0,2 (MPa) Elongation (% min.) Hardness
HBW
min. max. min. max. A50 mm A
T3 ≤ 10 425 – 310 – 8 10 120
> 10 – ≤ 80 425 – 290 – 7 9 120
T351 ≤ 80 425 – 310 – 6 8 120

EN 755-2 – Mechanical properties: extruded aluminium round bars

Delivery temper Diameter
(mm)		 Tensile strength Rm (MPa) Proof strength Rp0,2 (MPa) Elongation (% min.) Hardness
HBW
min. max. min. max. A50 mm A
T3 / T3510 / T3511 ≤ 50 450 – 310 – 6 8 120
> 50 – ≤ 100 440 – 300 – – 8 120
> 100 – ≤ 200 420 – 280 – – 8 120
> 200 – ≤ 250 400 – 270 – – 8 120

EN AW – Al Cu4 Mg1 – general alloy grade information

The values and data below are indicative – they help to give a general picture of the material.

Alloy designations

EN AWAl Cu4 Mg1
Old designationAl Cu Mg2
Material number (DIN)3.1355
United Kingdom (BS)L97
Italy (UNI)9002/4
SpainL-3140
Sweden-
Norway-
France (AFNOR)A-U4G1
Colour code RAL 2004   Pure Orange

Typical physical properties

Density [g/cm3]2,77
Modulus of elasticity [GPa]73,0
Thermal conductivity [W/m*K]130 – 150
Thermal expansion coefficient [K-1*10-6] -50°C – 20°C   |   21,1
20°C – 100°C   |   22,9
20°C – 200°C   |   23,8
20°C – 300°C   |   24,7
Specific heat [J/(kg*K)]875
Electrical conductivity [m/Ω*mm2]18 – 21
Shear modulus [GPa]27,4

Heat treatment

Annealing / recrystallisation annealing
Annealing temperature380°C – 420°C
Heat-up time2 – 3 hours
Cooling conditions30°C/hour to 250°C, air below 250°C
Hardening
Solution heat treatment495°C – 505°C
Quenchingwater
Natural ageing5 – 8 days
Artificial ageing180°C – 195°C · approx. 16 – 24 hours
Machinability
Annealed3
Work-hardened-
Heat-treated2
Dimensional stability4
EDM1
Surface treatment
Anodising – (protective)2
Special anodising quality (EQ)-
Anodising – decorative5
Painting / coating3
Polishing1
Solderability
Brazing with flux5
Brazing without flux5
Abrasion soldering3
Soft soldering with flux5
Corrosion resistance
Normal atmosphere4 – 5
Marine environment4 – 5
Formability
Bending4O
Compression forming3O
Deep drawing3O
Upsetting4O
Impact extrusion4O
Food-contact use (DIN EN 602) no

Legend

1very good
2good
3medium
4poor
5not suitable
EQ Anodising quality must be ordered separately and confirmed in writing

Dimensional tolerances of extruded round bars

DIN EN 755-4 : 2008

Alloy groups

Group I EN AW-1050A, EN AW-1070A, EN AW-1200, EN AW-1350
EN AW-3102, EN AW-3003, EN AW-3103
EN AW-5005, EN AW-5005A, EN AW-5051A, EN AW-5251
EN AW-6101A, EN AW-6101B, EN AW-6005, EN AW-6005A, EN AW-6106, EN AW-6008, EN AW-6010A, EN AW-6012, EN AW-6014, EN AW-6018, EN AW-6023, EN AW-6351, EN AW-6060, EN AW-6360, EN AW-6061, EN AW-6261, EN AW-6262, EN AW-6262A, EN AW-6063, EN AW-6063A, EN AW-6463, EN AW-6065, EN AW-6081, EN AW-6082, EN AW-6182
Group II EN AW-2007, EN AW-2011, EN AW-2011A, EN AW-2014, EN AW-2014A
EN AW-2017A, EN AW-2024, EN AW-2030
EN AW-5019, EN AW-5049, EN AW-5052, EN AW-5154A, EN AW-5454, EN AW-5754, EN AW-5083, EN AW-5086
EN AW-7003, EN AW-7005, EN AW-7108, EN AW-7108A, EN AW-7020, EN AW-7021, EN AW-7022, EN AW-7049A, EN AW-7075

Diameter tolerances (extruded – EN 755)

Dimensions in millimetres (mm)
Ø mm Tolerances
from to Alloy group I Alloy group II
≥ 1018± 0,22± 0,30
1825± 0,25± 0,35
2540± 0,30± 0,40
4050± 0,35± 0,45
5065± 0,40± 0,50
6580± 0,45± 0,70
80100± 0,55± 0,90
100120± 0,65± 1,0
120150± 0,80± 1,2
150180± 1,0± 1,4
180220± 1,15± 1,7
Note: For tolerances outside the sizes above, please ask our sales team.

Dimensional tolerances of extruded round bars

DIN EN 755-4 : 2008

Alloy groups

Group I EN AW-1050A, EN AW-1070A, EN AW-1200, EN AW-1350
EN AW-3102, EN AW-3003, EN AW-3103
EN AW-5005, EN AW-5005A, EN AW-5051A, EN AW-5251
EN AW-6101A, EN AW-6101B, EN AW-6005, EN AW-6005A, EN AW-6106, EN AW-6008, EN AW-6010A, EN AW-6012, EN AW-6014, EN AW-6018, EN AW-6023, EN AW-6351, EN AW-6060, EN AW-6360, EN AW-6061, EN AW-6261, EN AW-6262, EN AW-6262A, EN AW-6063, EN AW-6063A, EN AW-6463, EN AW-6065, EN AW-6081, EN AW-6082, EN AW-6182
Group II EN AW-2007, EN AW-2011, EN AW-2011A, EN AW-2014, EN AW-2014A
EN AW-2017A, EN AW-2024, EN AW-2030
EN AW-5019, EN AW-5049, EN AW-5052, EN AW-5154A, EN AW-5454, EN AW-5754, EN AW-5083, EN AW-5086
EN AW-7003, EN AW-7005, EN AW-7108, EN AW-7108A, EN AW-7020, EN AW-7021, EN AW-7022, EN AW-7049A, EN AW-7075

Diameter tolerances (extruded – EN 755)

Dimensions in millimetres (mm)
Ø mm Tolerances
from to Alloy group I Alloy group II
≥ 1018± 0,22± 0,30
1825± 0,25± 0,35
2540± 0,30± 0,40
4050± 0,35± 0,45
5065± 0,40± 0,50
6580± 0,45± 0,70
80100± 0,55± 0,90
100120± 0,65± 1,0
120150± 0,80± 1,2
150180± 1,0± 1,4
180220± 1,15± 1,7
Note: For tolerances outside the sizes above, please ask our sales team.
EN AW-2024 (AlCu4Mg1) aluminium round bar
EN AW-2024 (AlCu4Mg1) aluminium round bar
EN AW-2024 (AlCu4Mg1) aluminium round bar
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Note: We accept no liability or warranty for the correctness, accuracy or completeness of the information and data stated above. Standards and indicative values may change. Agreements are valid as set out in the quotation / order confirmation. We also draw attention to the fact that we accept no liability for colour shades arising during decorative anodising, or for corrosion-resistance results and how they develop. Individual terms may be agreed on a case-by-case basis and must be recorded in writing.