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7204 Aluminum vs. 2117 Aluminum

Both 7204 aluminum and 2117 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 7204 aluminum and the bottom bar is 2117 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
71
Elongation at Break, % 11 to 13
26
Fatigue Strength, MPa 110 to 130
95
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 130 to 220
200
Tensile Strength: Ultimate (UTS), MPa 220 to 380
300
Tensile Strength: Yield (Proof), MPa 120 to 310
170

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 210
220
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 520
550
Specific Heat Capacity, J/kg-K 880
880
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
40
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
10
Density, g/cm3 2.9
3.0
Embodied Carbon, kg CO2/kg material 8.4
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 40
64
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 710
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
47
Strength to Weight: Axial, points 21 to 36
28
Strength to Weight: Bending, points 28 to 40
33
Thermal Diffusivity, mm2/s 58
59
Thermal Shock Resistance, points 9.4 to 16
12

Alloy Composition

Aluminum (Al), % 90.5 to 94.8
91 to 97.6
Chromium (Cr), % 0 to 0.3
0 to 0.1
Copper (Cu), % 0 to 0.2
2.2 to 4.5
Iron (Fe), % 0 to 0.35
0 to 0.7
Magnesium (Mg), % 1.0 to 2.0
0.2 to 1.0
Manganese (Mn), % 0.2 to 0.7
0.4 to 1.0
Silicon (Si), % 0 to 0.3
0.2 to 0.8
Titanium (Ti), % 0 to 0.2
0 to 0.25
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 4.0 to 5.0
0 to 0.25
Zirconium (Zr), % 0 to 0.25
0 to 0.25
Residuals, % 0
0 to 0.15