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EN-MC65220 Magnesium vs. C28500 Muntz Metal

EN-MC65220 magnesium belongs to the magnesium alloys classification, while C28500 Muntz Metal belongs to the copper 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 EN-MC65220 magnesium and the bottom bar is C28500 Muntz Metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 2.2
20
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 17
40
Shear Strength, MPa 150
320
Tensile Strength: Ultimate (UTS), MPa 270
520
Tensile Strength: Yield (Proof), MPa 200
380

Thermal Properties

Latent Heat of Fusion, J/g 340
170
Maximum Temperature: Mechanical, °C 160
110
Melting Completion (Liquidus), °C 610
900
Melting Onset (Solidus), °C 550
890
Specific Heat Capacity, J/kg-K 980
390
Thermal Conductivity, W/m-K 110
100
Thermal Expansion, µm/m-K 26
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
29
Electrical Conductivity: Equal Weight (Specific), % IACS 120
33

Otherwise Unclassified Properties

Base Metal Price, % relative 80
22
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 27
2.7
Embodied Energy, MJ/kg 210
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
94
Resilience: Unit (Modulus of Resilience), kJ/m3 450
700
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 62
20
Strength to Weight: Axial, points 40
18
Strength to Weight: Bending, points 49
18
Thermal Diffusivity, mm2/s 61
33
Thermal Shock Resistance, points 17
17

Alloy Composition


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Copper (Cu), % 0.050 to 0.1
57 to 59
Iron (Fe), % 0 to 0.010
0 to 0.35
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 1.3 to 1.7
0
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
39.5 to 43
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.9