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7178 Aluminum vs. EN AC-51200 Aluminum

Both 7178 aluminum and EN AC-51200 aluminum are aluminum alloys. They have a moderately high 91% 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 7178 aluminum and the bottom bar is EN AC-51200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
67
Elongation at Break, % 4.5 to 12
1.1
Fatigue Strength, MPa 120 to 210
100
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 27
25
Tensile Strength: Ultimate (UTS), MPa 240 to 640
220
Tensile Strength: Yield (Proof), MPa 120 to 560
150

Thermal Properties

Latent Heat of Fusion, J/g 370
410
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 480
570
Specific Heat Capacity, J/kg-K 860
910
Thermal Conductivity, W/m-K 130
92
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
22
Electrical Conductivity: Equal Weight (Specific), % IACS 91
74

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 3.1
2.6
Embodied Carbon, kg CO2/kg material 8.2
9.6
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1110
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 52
2.2
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 2220
160
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 45
51
Strength to Weight: Axial, points 21 to 58
24
Strength to Weight: Bending, points 28 to 54
31
Thermal Diffusivity, mm2/s 47
39
Thermal Shock Resistance, points 10 to 28
10

Alloy Composition

Aluminum (Al), % 85.4 to 89.5
84.5 to 92
Chromium (Cr), % 0.18 to 0.28
0
Copper (Cu), % 1.6 to 2.4
0 to 0.1
Iron (Fe), % 0 to 0.5
0 to 1.0
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 2.4 to 3.1
8.0 to 10.5
Manganese (Mn), % 0 to 0.3
0 to 0.55
Nickel (Ni), % 0
0 to 0.1
Silicon (Si), % 0 to 0.4
0 to 2.5
Tin (Sn), % 0
0 to 0.1
Titanium (Ti), % 0 to 0.2
0 to 0.2
Zinc (Zn), % 6.3 to 7.3
0 to 0.25
Residuals, % 0
0 to 0.15