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Nickel 908 vs. ZK51A Magnesium

Nickel 908 belongs to the nickel alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 908 and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
45
Elongation at Break, % 11
4.7
Fatigue Strength, MPa 450
62
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 70
18
Shear Strength, MPa 800
160
Tensile Strength: Ultimate (UTS), MPa 1340
240
Tensile Strength: Yield (Proof), MPa 930
150

Thermal Properties

Latent Heat of Fusion, J/g 290
340
Maximum Temperature: Mechanical, °C 920
120
Melting Completion (Liquidus), °C 1430
640
Melting Onset (Solidus), °C 1380
550
Specific Heat Capacity, J/kg-K 460
970
Thermal Conductivity, W/m-K 11
110
Thermal Expansion, µm/m-K 8.6
26

Otherwise Unclassified Properties

Base Metal Price, % relative 50
13
Density, g/cm3 8.3
1.8
Embodied Carbon, kg CO2/kg material 9.3
24
Embodied Energy, MJ/kg 140
160
Embodied Water, L/kg 170
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
10
Resilience: Unit (Modulus of Resilience), kJ/m3 2340
260
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 23
64
Strength to Weight: Axial, points 45
36
Strength to Weight: Bending, points 33
47
Thermal Diffusivity, mm2/s 2.9
61
Thermal Shock Resistance, points 61
15

Alloy Composition

Aluminum (Al), % 0.75 to 1.3
0
Boron (B), % 0 to 0.012
0
Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0 to 0.1
Iron (Fe), % 35.6 to 44.6
0
Magnesium (Mg), % 0
93.1 to 95.9
Manganese (Mn), % 0 to 1.0
0
Nickel (Ni), % 47 to 51
0 to 0.010
Niobium (Nb), % 2.7 to 3.3
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.0050
0
Titanium (Ti), % 1.2 to 1.8
0
Zinc (Zn), % 0
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3