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ZK51A Magnesium vs. Monel R-405

ZK51A magnesium belongs to the magnesium alloys classification, while Monel R-405 belongs to the nickel alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 ZK51A magnesium and the bottom bar is Monel R-405.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
160
Elongation at Break, % 4.7
9.1 to 39
Fatigue Strength, MPa 62
210 to 250
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
62
Shear Strength, MPa 160
350 to 370
Tensile Strength: Ultimate (UTS), MPa 240
540 to 630
Tensile Strength: Yield (Proof), MPa 150
190 to 350

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Maximum Temperature: Mechanical, °C 120
900
Melting Completion (Liquidus), °C 640
1350
Melting Onset (Solidus), °C 550
1300
Specific Heat Capacity, J/kg-K 970
430
Thermal Conductivity, W/m-K 110
23
Thermal Expansion, µm/m-K 26
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 140
3.4

Otherwise Unclassified Properties

Base Metal Price, % relative 13
50
Density, g/cm3 1.8
8.9
Embodied Carbon, kg CO2/kg material 24
7.9
Embodied Energy, MJ/kg 160
110
Embodied Water, L/kg 940
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
49 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 260
120 to 370
Stiffness to Weight: Axial, points 14
10
Stiffness to Weight: Bending, points 64
21
Strength to Weight: Axial, points 36
17 to 20
Strength to Weight: Bending, points 47
17 to 18
Thermal Diffusivity, mm2/s 61
5.9
Thermal Shock Resistance, points 15
17 to 20

Alloy Composition

Carbon (C), % 0
0 to 0.3
Copper (Cu), % 0 to 0.1
28 to 34
Iron (Fe), % 0
0 to 2.5
Magnesium (Mg), % 93.1 to 95.9
0
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0 to 0.010
63 to 72
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0.025 to 0.060
Zinc (Zn), % 3.6 to 5.5
0
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0 to 0.3
0