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50Cr-50Ni Alloy vs. ZK51A Magnesium

50Cr-50Ni alloy belongs to the otherwise unclassified metals classification, while ZK51A magnesium belongs to the magnesium alloys. There are 21 material properties with values for both materials. Properties with values for just one material (10, 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 50Cr-50Ni alloy and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
45
Elongation at Break, % 5.7
4.7
Poisson's Ratio 0.26
0.29
Shear Modulus, GPa 84
18
Tensile Strength: Ultimate (UTS), MPa 620
240
Tensile Strength: Yield (Proof), MPa 390
150

Thermal Properties

Latent Heat of Fusion, J/g 350
340
Specific Heat Capacity, J/kg-K 490
970
Thermal Expansion, µm/m-K 15
26

Otherwise Unclassified Properties

Base Metal Price, % relative 50
13
Density, g/cm3 8.0
1.8
Embodied Carbon, kg CO2/kg material 7.9
24
Embodied Energy, MJ/kg 110
160
Embodied Water, L/kg 350
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
10
Resilience: Unit (Modulus of Resilience), kJ/m3 350
260
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
64
Strength to Weight: Axial, points 21
36
Strength to Weight: Bending, points 20
47
Thermal Shock Resistance, points 14
15

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 48 to 52
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 0 to 1.0
0
Magnesium (Mg), % 0
93.1 to 95.9
Manganese (Mn), % 0 to 0.3
0
Nickel (Ni), % 44.5 to 52
0 to 0.010
Nitrogen (N), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.020
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0 to 0.5
0
Zinc (Zn), % 0
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3