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EV31A Magnesium vs. C70260 Copper

EV31A magnesium belongs to the magnesium alloys classification, while C70260 copper belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (10, 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 EV31A magnesium and the bottom bar is C70260 copper.

EV31A (EV31A-T6, M12310) MagnesiumUNS C70260 (CW111C) Nickel-Silicon Copper
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
120
Elongation at Break, % 3.5
9.5 to 19
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 17
44
Shear Strength, MPa 170
320 to 450
Tensile Strength: Ultimate (UTS), MPa 260
520 to 760
Tensile Strength: Yield (Proof), MPa 170
410 to 650

Thermal Properties

Maximum Temperature: Mechanical, °C 200
200
Melting Onset (Solidus), °C 590
1040
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 86
160
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
40 to 50
Electrical Conductivity: Equal Weight (Specific), % IACS 90
40 to 51

Otherwise Unclassified Properties

Density, g/cm3 1.8
8.9

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1
46 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 330
710 to 1810
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 65
18
Strength to Weight: Axial, points 40
16 to 24
Strength to Weight: Bending, points 50
16 to 21
Thermal Diffusivity, mm2/s 47
45
Thermal Shock Resistance, points 16
18 to 27