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Aerospace Aluminum Alloys

6061, 7075, 2024 Chemical Composition

Chemical Composition Limits for Aluminum Alloys

Composition in percent by weight according to The Aluminum Association. The values associates maximum limits unless shown as a range or a minumum.

Alloy Si Fe Cu Mn Mg Cr Zn Ti Others Each Others Total Al. Min.
6061 0.40-
0.8
0.7 0.15-
0.40
0.15 0.8-
1.2
0.04-
0.35
0.25 0.15 0.05 0.15 Rem.
7075 0.40 0.50 1.2-2.0 0.30 2.1-
2.9
0.18-
0.28
5.1-
6.1
0.20 0.05 0.15 Rem.
2024 0.50 0.50 3.8-4.9 0.30-0.9 1.2-
1.8
0.10 0.25 0.15 0.05 0.15 Rem.

6061, 7075, 2024 Mechanical Properties

Typical Mechanical Properties

The following typical properties are not guaranteed since most cases they are averages for various sizes and methods of manufacture and may not be exactly representative of any particular product or size. The data is intended for comparing alloys and tempers and should not be used for design purposes.

Tensile Strength Yield Strength Elongation (%) for the following gauge ranges: Tensile Strength Yield Strength Elongation (%) for the following gauge ranges:
Alloy Temper (ksi) (ksi) 0.010-0.050 0.051-.125 (MPa) (MPa) 0.25-1.25mm 1.26-3.0mm
6061 O 18 8 25 26 124.1 55.2 25 26
T4 35 21 22 24 241.3 144.8 22 24
T6 45 40 12 17 310.3 275.8 12 17
7075 O 33 15 16 18 227.5 103.4 16 18
T6 83 73 11 12 572.3 503.3 11 12
2024 O 27 11 18 20 186.2 75.8 18 20
T3 70 50 16 18 482.6 344.7 16 18
T4 68 47 20 19 468.8 324.1 20 19

Aluminum Specification Cross Reference

Alloy Form ASTM AMS ASME
6061 Aluminum Coil ASTM-B209 4025, 4026, 4027AMS-QQ-A-250/11 SB-209
Aluminum Strip ASTM-B209 4025, 4026, 4027AMS-QQ-A-250/11 SB-209
Aluminum Plate ASTM-B209 4025, 4026, 4027AMS-QQ-A-250/11 SB-209
7075 Aluminum Coil ASTM-B209 4044, 4045, 4078AMS-QQ-A-250/12AMS-QQ-A-250/24
Aluminum Strip ASTM-B209 4044, 4045, 4078AMS-QQ-A-250/12AMS-QQ-A-250/24
Aluminum Plate ASTM-B209 4044, 4045, 4078AMS-QQ-A-250/12AMS-QQ-A-250/24
2024 Aluminum Coil ASTM-B209 4035, 4037
Aluminum Strip ASTM-B209 4035, 4037
Aluminum Plate ASTM-B209 4035, 4037
Aluminum in use by Aerospace.

Aerospace Alloys

United Aluminum can supply these alloys, sometimes referred to in the group of “Aerospace Alloys” for their practical applications in the aviation industry.
Aluminum has many benefits over other materials, including a high strength to weight ratio, corrosion resistance, formability, and price. Alloy 6061, 7075, and 2024 are engineered to be lightweight and strong, and their ease of formability allows complex shapes and drawn parts, which can then be further enhanced with heat treating.
United Aluminum can offer Custom Rolled® Aluminum Coil Strip in these alloys to meet your requirements.