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Nickel 725 vs. ZC63A Magnesium

Nickel 725 belongs to the nickel alloys classification, while ZC63A magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, 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 nickel 725 and the bottom bar is ZC63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
48
Elongation at Break, % 34
3.3
Fatigue Strength, MPa 260
94
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 78
19
Shear Strength, MPa 580
130
Tensile Strength: Ultimate (UTS), MPa 860
220
Tensile Strength: Yield (Proof), MPa 350
130

Thermal Properties

Latent Heat of Fusion, J/g 320
330
Maximum Temperature: Mechanical, °C 980
98
Melting Completion (Liquidus), °C 1340
550
Melting Onset (Solidus), °C 1270
470
Specific Heat Capacity, J/kg-K 440
950
Thermal Expansion, µm/m-K 13
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.5
32
Electrical Conductivity: Equal Weight (Specific), % IACS 1.6
140

Otherwise Unclassified Properties

Base Metal Price, % relative 75
13
Density, g/cm3 8.5
2.1
Embodied Carbon, kg CO2/kg material 13
22
Embodied Energy, MJ/kg 190
150
Embodied Water, L/kg 270
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
6.3
Resilience: Unit (Modulus of Resilience), kJ/m3 300
190
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
58
Strength to Weight: Axial, points 28
29
Strength to Weight: Bending, points 24
38
Thermal Shock Resistance, points 23
12

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 19 to 22.5
0
Copper (Cu), % 0
2.4 to 3.0
Iron (Fe), % 2.3 to 15.3
0
Magnesium (Mg), % 0
89.2 to 91.9
Manganese (Mn), % 0 to 0.35
0.25 to 0.75
Molybdenum (Mo), % 7.0 to 9.5
0
Nickel (Ni), % 55 to 59
0 to 0.010
Niobium (Nb), % 2.8 to 4.0
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.2
0 to 0.2
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 1.0 to 1.7
0
Zinc (Zn), % 0
5.5 to 6.5
Residuals, % 0
0 to 0.3