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7129 Aluminum vs. 6025 Aluminum

Both 7129 Aluminum and 6025 aluminum are aluminum alloys. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is 7129 Aluminum and the bottom bar is 6025 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 9.0 to 9.1
2.8 to 10
Fatigue Strength, MPa 150 to 190
67 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 250 to 260
110 to 140
Tensile Strength: Ultimate (UTS), MPa 430
190 to 240
Tensile Strength: Yield (Proof), MPa 380 to 390
68 to 210

Thermal Properties

Latent Heat of Fusion, J/g 380
410
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 630
650
Melting Onset (Solidus), °C 510
550
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
33
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.8
Embodied Carbon, kg CO2/kg material 8.3
8.5
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 38
6.0 to 15
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1090
33 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 41
19 to 24
Strength to Weight: Bending, points 43 to 44
26 to 31
Thermal Diffusivity, mm2/s 58
54
Thermal Shock Resistance, points 19
8.2 to 10

Alloy Composition

Aluminum (Al), % 91 to 94
91.7 to 96.3
Chromium (Cr), % 0 to 0.1
0 to 0.2
Copper (Cu), % 0.5 to 0.9
0.2 to 0.7
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.7
Magnesium (Mg), % 1.3 to 2.0
2.1 to 3.0
Manganese (Mn), % 0 to 0.1
0.6 to 1.4
Silicon (Si), % 0 to 0.15
0.8 to 1.5
Titanium (Ti), % 0 to 0.050
0 to 0.2
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 4.2 to 5.2
0 to 0.5
Residuals, % 0
0 to 0.15