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7178 Aluminum vs. EN 1.3963 Alloy

7178 aluminum belongs to the aluminum alloys classification, while EN 1.3963 alloy belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 7178 aluminum and the bottom bar is EN 1.3963 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
190
Elongation at Break, % 4.5 to 12
29
Poisson's Ratio 0.32
0.3
Shear Modulus, GPa 27
72
Shear Strength, MPa 140 to 380
290
Tensile Strength: Ultimate (UTS), MPa 240 to 640
440
Tensile Strength: Yield (Proof), MPa 120 to 560
310

Thermal Properties

Latent Heat of Fusion, J/g 370
270
Melting Completion (Liquidus), °C 630
1430
Melting Onset (Solidus), °C 480
1390
Specific Heat Capacity, J/kg-K 860
460
Thermal Expansion, µm/m-K 23
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 10
25
Density, g/cm3 3.1
8.2
Embodied Carbon, kg CO2/kg material 8.2
4.8
Embodied Energy, MJ/kg 150
66
Embodied Water, L/kg 1110
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 52
110
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 2220
260
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
23
Strength to Weight: Axial, points 21 to 58
15
Strength to Weight: Bending, points 28 to 54
16
Thermal Shock Resistance, points 10 to 28
110

Alloy Composition

Aluminum (Al), % 85.4 to 89.5
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0.18 to 0.28
0 to 0.25
Copper (Cu), % 1.6 to 2.4
0
Iron (Fe), % 0 to 0.5
60.5 to 64.9
Magnesium (Mg), % 2.4 to 3.1
0
Manganese (Mn), % 0 to 0.3
0 to 0.5
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
35 to 37
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.4
0 to 0.5
Sulfur (S), % 0
0.1 to 0.2
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 6.3 to 7.3
0
Residuals, % 0 to 0.15
0