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EN AC-45100 Aluminum vs. 50Cr-50Ni Alloy

EN AC-45100 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 EN AC-45100 aluminum and the bottom bar is 50Cr-50Ni alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
210
Elongation at Break, % 1.0 to 2.8
5.7
Poisson's Ratio 0.33
0.26
Shear Modulus, GPa 27
84
Tensile Strength: Ultimate (UTS), MPa 300 to 360
620
Tensile Strength: Yield (Proof), MPa 210 to 320
390

Thermal Properties

Latent Heat of Fusion, J/g 470
350
Specific Heat Capacity, J/kg-K 890
490
Thermal Expansion, µm/m-K 22
15

Otherwise Unclassified Properties

Base Metal Price, % relative 10
50
Density, g/cm3 2.8
8.0
Embodied Carbon, kg CO2/kg material 7.9
7.9
Embodied Energy, MJ/kg 150
110
Embodied Water, L/kg 1100
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 7.6
31
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 710
350
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 49
25
Strength to Weight: Axial, points 30 to 35
21
Strength to Weight: Bending, points 35 to 39
20
Thermal Shock Resistance, points 14 to 16
14

Alloy Composition

Aluminum (Al), % 88 to 92.8
0 to 0.25
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0
48 to 52
Copper (Cu), % 2.6 to 3.6
0
Iron (Fe), % 0 to 0.6
0 to 1.0
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0.15 to 0.45
0
Manganese (Mn), % 0 to 0.55
0 to 0.3
Nickel (Ni), % 0 to 0.1
44.5 to 52
Nitrogen (N), % 0
0 to 0.3
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 4.5 to 6.0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
0 to 0.5
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.15
0