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Monel R-405 vs. ZK51A Magnesium

Monel R-405 belongs to the nickel alloys classification, while ZK51A magnesium belongs to the magnesium 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 Monel R-405 and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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