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EN-MC21320 Magnesium vs. C28500 Muntz Metal

EN-MC21320 magnesium belongs to the magnesium alloys classification, while C28500 Muntz Metal belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 EN-MC21320 magnesium and the bottom bar is C28500 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 7.5
20
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 18
40
Shear Strength, MPa 130
320
Tensile Strength: Ultimate (UTS), MPa 230
520
Tensile Strength: Yield (Proof), MPa 140
380

Thermal Properties

Latent Heat of Fusion, J/g 370
170
Maximum Temperature: Mechanical, °C 110
110
Melting Completion (Liquidus), °C 600
900
Melting Onset (Solidus), °C 530
890
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 66
100
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
29
Electrical Conductivity: Equal Weight (Specific), % IACS 91
33

Otherwise Unclassified Properties

Base Metal Price, % relative 12
22
Density, g/cm3 1.6
7.9
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 980
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
94
Resilience: Unit (Modulus of Resilience), kJ/m3 200
700
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 72
20
Strength to Weight: Axial, points 38
18
Strength to Weight: Bending, points 50
18
Thermal Diffusivity, mm2/s 40
33
Thermal Shock Resistance, points 13
17

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Copper (Cu), % 0 to 0.010
57 to 59
Iron (Fe), % 0 to 0.0050
0 to 0.35
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0.5 to 1.5
0
Zinc (Zn), % 0 to 0.2
39.5 to 43
Residuals, % 0 to 0.010
0 to 0.9