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2017A Aluminum vs. 50Cr-50Ni Alloy

2017A aluminum belongs to the aluminum alloys classification, while 50Cr-50Ni alloy belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (9, 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 2017A aluminum and the bottom bar is 50Cr-50Ni alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
210
Elongation at Break, % 2.2 to 14
5.7
Poisson's Ratio 0.33
0.26
Shear Modulus, GPa 27
84
Tensile Strength: Ultimate (UTS), MPa 200 to 460
620
Tensile Strength: Yield (Proof), MPa 110 to 290
390

Thermal Properties

Latent Heat of Fusion, J/g 390
350
Specific Heat Capacity, J/kg-K 880
490
Thermal Expansion, µm/m-K 23
15

Otherwise Unclassified Properties

Base Metal Price, % relative 11
50
Density, g/cm3 3.0
8.0
Embodied Carbon, kg CO2/kg material 8.2
7.9
Embodied Energy, MJ/kg 150
110
Embodied Water, L/kg 1140
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.7 to 53
31
Resilience: Unit (Modulus of Resilience), kJ/m3 90 to 570
350
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 46
25
Strength to Weight: Axial, points 19 to 42
21
Strength to Weight: Bending, points 26 to 44
20
Thermal Shock Resistance, points 8.9 to 20
14

Alloy Composition

Aluminum (Al), % 91.3 to 95.5
0 to 0.25
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.1
48 to 52
Copper (Cu), % 3.5 to 4.5
0
Iron (Fe), % 0 to 0.7
0 to 1.0
Magnesium (Mg), % 0.4 to 1.0
0
Manganese (Mn), % 0.4 to 1.0
0 to 0.3
Nickel (Ni), % 0
44.5 to 52
Nitrogen (N), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0.2 to 0.8
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 0 to 0.25
0 to 0.5
Zinc (Zn), % 0 to 0.25
0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0