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7129 Aluminum vs. 6101B Aluminum

Both 7129 Aluminum and 6101B aluminum are aluminum alloys. They have a moderately high 93% of their average alloy composition in common.

For each property being compared, the top bar is 7129 Aluminum and the bottom bar is 6101B aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
68
Elongation at Break, % 9.0 to 9.1
9.1 to 13
Fatigue Strength, MPa 150 to 190
62 to 70
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 250 to 260
120 to 150
Tensile Strength: Ultimate (UTS), MPa 430
190 to 250
Tensile Strength: Yield (Proof), MPa 380 to 390
140 to 180

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 510
630
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 150
210
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
57
Electrical Conductivity: Equal Weight (Specific), % IACS 120
190

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
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1150
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 38
20 to 23
Resilience: Unit (Modulus of Resilience), kJ/m3 1050 to 1090
140 to 240
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 41
20 to 25
Strength to Weight: Bending, points 43 to 44
27 to 32
Thermal Diffusivity, mm2/s 58
87
Thermal Shock Resistance, points 19
8.5 to 11

Alloy Composition

Aluminum (Al), % 91 to 94
98.2 to 99.3
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
0.1 to 0.3
Magnesium (Mg), % 1.3 to 2.0
0.35 to 0.6
Manganese (Mn), % 0 to 0.1
0 to 0.050
Silicon (Si), % 0 to 0.15
0.3 to 0.6
Titanium (Ti), % 0 to 0.050
0
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 4.2 to 5.2
0 to 0.1
Residuals, % 0
0 to 0.1

Comparable Variants