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7129 Aluminum vs. EN AC-42100 Aluminum

Both 7129 Aluminum and EN AC-42100 aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common. There are 29 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 EN AC-42100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 9.0 to 9.1
3.4 to 9.0
Fatigue Strength, MPa 150 to 190
76 to 82
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Tensile Strength: Ultimate (UTS), MPa 430
280 to 290
Tensile Strength: Yield (Proof), MPa 380 to 390
210 to 230

Thermal Properties

Latent Heat of Fusion, J/g 380
500
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 630
610
Melting Onset (Solidus), °C 510
600
Specific Heat Capacity, J/kg-K 880
910
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 24
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
41
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.6
Embodied Carbon, kg CO2/kg material 8.3
8.0
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 38
9.1 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1090
300 to 370
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 47
53
Strength to Weight: Axial, points 41
30 to 31
Strength to Weight: Bending, points 43 to 44
37 to 38
Thermal Diffusivity, mm2/s 58
66
Thermal Shock Resistance, points 19
13

Alloy Composition

Aluminum (Al), % 91 to 94
91.3 to 93.3
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0.5 to 0.9
0 to 0.050
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.19
Magnesium (Mg), % 1.3 to 2.0
0.25 to 0.45
Manganese (Mn), % 0 to 0.1
0 to 0.1
Silicon (Si), % 0 to 0.15
6.5 to 7.5
Titanium (Ti), % 0 to 0.050
0 to 0.25
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 4.2 to 5.2
0 to 0.070
Residuals, % 0
0 to 0.1

Comparable Variants