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EN-MC21320 Magnesium vs. CR022A Copper

EN-MC21320 magnesium belongs to the magnesium alloys classification, while CR022A 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-MC21320 magnesium and the bottom bar is CR022A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 7.5
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
43
Tensile Strength: Ultimate (UTS), MPa 230
230
Tensile Strength: Yield (Proof), MPa 140
140

Thermal Properties

Latent Heat of Fusion, J/g 370
210
Maximum Temperature: Mechanical, °C 110
200
Melting Completion (Liquidus), °C 600
1090
Melting Onset (Solidus), °C 530
1040
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 66
380
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
100
Electrical Conductivity: Equal Weight (Specific), % IACS 91
100

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.6
9.0
Embodied Carbon, kg CO2/kg material 23
2.6
Embodied Energy, MJ/kg 160
41
Embodied Water, L/kg 980
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
31
Resilience: Unit (Modulus of Resilience), kJ/m3 200
83
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 38
7.1
Strength to Weight: Bending, points 50
9.3
Thermal Diffusivity, mm2/s 40
110
Thermal Shock Resistance, points 13
8.1

Alloy Composition


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Aluminum (Al), % 3.5 to 5.0
0
Antimony (Sb), % 0
0 to 0.00040
Arsenic (As), % 0
0 to 0.00050
Bismuth (Bi), % 0
0 to 0.00020
Cadmium (Cd), % 0
0 to 0.00010
Copper (Cu), % 0 to 0.010
99.99 to 99.999
Iron (Fe), % 0 to 0.0050
0 to 0.0010
Lead (Pb), % 0
0 to 0.00050
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0 to 0.00050
Nickel (Ni), % 0 to 0.0020
0 to 0.0010
Phosphorus (P), % 0
0.0010 to 0.0060
Selenium (Se), % 0
0 to 0.00020
Silicon (Si), % 0.5 to 1.5
0
Silver (Ag), % 0
0 to 0.0025
Sulfur (S), % 0
0 to 0.0015
Tellurium (Te), % 0
0 to 0.00020
Tin (Sn), % 0
0 to 0.00020
Zinc (Zn), % 0 to 0.2
0 to 0.00010
Residuals, % 0 to 0.010
0