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7129 Aluminum vs. 5050 Aluminum

Both 7129 Aluminum and 5050 aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 7129 Aluminum and the bottom bar is 5050 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
68
Elongation at Break, % 9.0 to 9.1
1.7 to 22
Fatigue Strength, MPa 150 to 190
45 to 100
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 250 to 260
91 to 140
Tensile Strength: Ultimate (UTS), MPa 430
140 to 250
Tensile Strength: Yield (Proof), MPa 380 to 390
50 to 210

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 630
650
Melting Onset (Solidus), °C 510
630
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 150
190
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
50
Electrical Conductivity: Equal Weight (Specific), % IACS 120
170

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.3
8.4
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 38
4.1 to 24
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1090
18 to 330
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 41
15 to 26
Strength to Weight: Bending, points 43 to 44
22 to 33
Thermal Diffusivity, mm2/s 58
79
Thermal Shock Resistance, points 19
6.3 to 11

Alloy Composition

Aluminum (Al), % 91 to 94
96.3 to 98.9
Chromium (Cr), % 0 to 0.1
0 to 0.1
Copper (Cu), % 0.5 to 0.9
0 to 0.2
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.7
Magnesium (Mg), % 1.3 to 2.0
1.1 to 1.8
Manganese (Mn), % 0 to 0.1
0 to 0.1
Silicon (Si), % 0 to 0.15
0 to 0.4
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 4.2 to 5.2
0 to 0.25
Residuals, % 0
0 to 0.15