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2025 Aluminum vs. 7049 Aluminum

Both 2025 aluminum and 7049 aluminum are aluminum alloys. They have 90% of their average alloy composition in common.

For each property being compared, the top bar is 2025 aluminum and the bottom bar is 7049 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
140
Elastic (Young's, Tensile) Modulus, GPa 72
70
Elongation at Break, % 15
6.2 to 7.0
Fatigue Strength, MPa 130
160 to 170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
27
Shear Strength, MPa 240
300 to 310
Tensile Strength: Ultimate (UTS), MPa 400
510 to 530
Tensile Strength: Yield (Proof), MPa 260
420 to 450

Thermal Properties

Latent Heat of Fusion, J/g 400
370
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 520
480
Specific Heat Capacity, J/kg-K 870
860
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
36
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 10
10
Density, g/cm3 3.0
3.1
Embodied Carbon, kg CO2/kg material 7.9
8.1
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1130
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
31 to 34
Resilience: Unit (Modulus of Resilience), kJ/m3 450
1270 to 1440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
45
Strength to Weight: Axial, points 37
46 to 47
Strength to Weight: Bending, points 40
46 to 47
Thermal Diffusivity, mm2/s 58
51
Thermal Shock Resistance, points 18
22 to 23

Alloy Composition

Aluminum (Al), % 90.9 to 95.2
85.7 to 89.5
Chromium (Cr), % 0 to 0.1
0.1 to 0.22
Copper (Cu), % 3.9 to 5.0
1.2 to 1.9
Iron (Fe), % 0 to 1.0
0 to 0.35
Magnesium (Mg), % 0 to 0.050
2.0 to 2.9
Manganese (Mn), % 0.4 to 1.2
0 to 0.2
Silicon (Si), % 0.5 to 1.2
0 to 0.25
Titanium (Ti), % 0 to 0.15
0 to 0.1
Zinc (Zn), % 0 to 0.25
7.2 to 8.2
Residuals, % 0
0 to 0.15