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7204 Aluminum vs. EN AC-51100 Aluminum

Both 7204 aluminum and EN AC-51100 aluminum are aluminum alloys. They have a moderately high 95% 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 7204 aluminum and the bottom bar is EN AC-51100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
68
Elongation at Break, % 11 to 13
4.5
Fatigue Strength, MPa 110 to 130
58
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Tensile Strength: Ultimate (UTS), MPa 220 to 380
160
Tensile Strength: Yield (Proof), MPa 120 to 310
80

Thermal Properties

Latent Heat of Fusion, J/g 380
400
Maximum Temperature: Mechanical, °C 210
170
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 520
620
Specific Heat Capacity, J/kg-K 880
900
Thermal Conductivity, W/m-K 150
130
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
34
Electrical Conductivity: Equal Weight (Specific), % IACS 120
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.4
8.7
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1140
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 40
6.0
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 710
47
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
51
Strength to Weight: Axial, points 21 to 36
17
Strength to Weight: Bending, points 28 to 40
25
Thermal Diffusivity, mm2/s 58
53
Thermal Shock Resistance, points 9.4 to 16
7.3

Alloy Composition

Aluminum (Al), % 90.5 to 94.8
94.5 to 97.5
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.2
0 to 0.050
Iron (Fe), % 0 to 0.35
0 to 0.55
Magnesium (Mg), % 1.0 to 2.0
2.5 to 3.5
Manganese (Mn), % 0.2 to 0.7
0 to 0.45
Silicon (Si), % 0 to 0.3
0 to 0.55
Titanium (Ti), % 0 to 0.2
0 to 0.2
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 4.0 to 5.0
0 to 0.1
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0
0 to 0.15