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7129 Aluminum vs. 5456 Aluminum

Both 7129 Aluminum and 5456 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 (1, in this case) are not shown.

For each property being compared, the top bar is 7129 Aluminum and the bottom bar is 5456 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
68
Elongation at Break, % 9.0 to 9.1
11 to 18
Fatigue Strength, MPa 150 to 190
130 to 210
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 250 to 260
190 to 210
Tensile Strength: Ultimate (UTS), MPa 430
320 to 340
Tensile Strength: Yield (Proof), MPa 380 to 390
150 to 250

Thermal Properties

Latent Heat of Fusion, J/g 380
390
Maximum Temperature: Mechanical, °C 180
190
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 510
570
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
29
Electrical Conductivity: Equal Weight (Specific), % IACS 120
97

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
9.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 38
33 to 46
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1090
170 to 470
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 41
33 to 35
Strength to Weight: Bending, points 43 to 44
38 to 40
Thermal Diffusivity, mm2/s 58
48
Thermal Shock Resistance, points 19
14 to 15

Alloy Composition

Aluminum (Al), % 91 to 94
92 to 94.8
Chromium (Cr), % 0 to 0.1
0.050 to 0.2
Copper (Cu), % 0.5 to 0.9
0 to 0.1
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.4
Magnesium (Mg), % 1.3 to 2.0
4.7 to 5.5
Manganese (Mn), % 0 to 0.1
0.5 to 1.0
Silicon (Si), % 0 to 0.15
0 to 0.25
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 0.25
Residuals, % 0
0 to 0.15