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EN-MC21210 Magnesium vs. CR021A Copper

EN-MC21210 magnesium belongs to the magnesium alloys classification, while CR021A copper belongs to the copper alloys. There are 28 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-MC21210 magnesium and the bottom bar is CR021A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
120
Elongation at Break, % 14
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Tensile Strength: Ultimate (UTS), MPa 190
230
Tensile Strength: Yield (Proof), MPa 90
140

Thermal Properties

Latent Heat of Fusion, J/g 350
210
Maximum Temperature: Mechanical, °C 100
200
Melting Completion (Liquidus), °C 600
1090
Melting Onset (Solidus), °C 570
1040
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 120
380
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
98
Electrical Conductivity: Equal Weight (Specific), % IACS 130
99

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.6
9.0
Embodied Carbon, kg CO2/kg material 24
2.6
Embodied Energy, MJ/kg 160
41
Embodied Water, L/kg 980
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
31
Resilience: Unit (Modulus of Resilience), kJ/m3 92
83
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 32
7.1
Strength to Weight: Bending, points 44
9.3
Thermal Diffusivity, mm2/s 76
110
Thermal Shock Resistance, points 11
8.1

Alloy Composition


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Aluminum (Al), % 1.6 to 2.6
0
Bismuth (Bi), % 0
0 to 0.00050
Copper (Cu), % 0 to 0.010
99.95 to 99.998
Iron (Fe), % 0 to 0.0050
0
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 96.3 to 98.3
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0
Phosphorus (P), % 0
0.0020 to 0.0070
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
0 to 0.015
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0 to 0.010
0