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EV31A Magnesium vs. C71000 Copper-nickel

EV31A magnesium belongs to the magnesium alloys classification, while C71000 copper-nickel belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (17, 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 C71000 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
130
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 17
49
Tensile Strength: Ultimate (UTS), MPa 260
320 to 560

Thermal Properties

Maximum Temperature: Mechanical, °C 200
240
Melting Onset (Solidus), °C 590
1150
Specific Heat Capacity, J/kg-K 1000
400
Thermal Conductivity, W/m-K 86
43
Thermal Expansion, µm/m-K 27
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 90
6.6

Otherwise Unclassified Properties

Density, g/cm3 1.8
8.9

Common Calculations

Stiffness to Weight: Axial, points 13
8.2
Stiffness to Weight: Bending, points 65
19
Strength to Weight: Axial, points 40
10 to 18
Strength to Weight: Bending, points 50
12 to 17
Thermal Diffusivity, mm2/s 47
12
Thermal Shock Resistance, points 16
12 to 20