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EV31A Magnesium vs. C95400 Bronze

EV31A magnesium belongs to the magnesium alloys classification, while C95400 bronze 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 C95400 bronze.

EV31A (EV31A-T6, M12310) MagnesiumUNS C95400 Aluminum Bronze
Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 70
160 to 200
Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 3.5
8.1 to 16
Poisson's Ratio 0.27
0.34
Shear Modulus, GPa 17
43
Tensile Strength: Ultimate (UTS), MPa 260
600 to 710
Tensile Strength: Yield (Proof), MPa 170
240 to 360

Thermal Properties

Maximum Temperature: Mechanical, °C 200
230
Melting Onset (Solidus), °C 590
1030
Specific Heat Capacity, J/kg-K 1000
440
Thermal Conductivity, W/m-K 86
59
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
13
Electrical Conductivity: Equal Weight (Specific), % IACS 90
14

Otherwise Unclassified Properties

Density, g/cm3 1.8
8.2

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1
48 to 75
Resilience: Unit (Modulus of Resilience), kJ/m3 330
250 to 560
Stiffness to Weight: Axial, points 13
7.7
Stiffness to Weight: Bending, points 65
20
Strength to Weight: Axial, points 40
20 to 24
Strength to Weight: Bending, points 50
19 to 22
Thermal Diffusivity, mm2/s 47
16
Thermal Shock Resistance, points 16
21 to 25