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EV31A Magnesium vs. C49300 Brass

EV31A magnesium belongs to the magnesium alloys classification, while C49300 brass 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 C49300 brass.

EV31A (EV31A-T6, M12310) MagnesiumUNS C49300 Bismuth Brass
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 3.5
4.5 to 20
Poisson's Ratio 0.27
0.31
Shear Modulus, GPa 17
40
Shear Strength, MPa 170
270 to 290
Tensile Strength: Ultimate (UTS), MPa 260
430 to 520
Tensile Strength: Yield (Proof), MPa 170
210 to 410

Thermal Properties

Maximum Temperature: Mechanical, °C 200
120
Melting Onset (Solidus), °C 590
840
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 86
88
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
15
Electrical Conductivity: Equal Weight (Specific), % IACS 90
17

Otherwise Unclassified Properties

Density, g/cm3 1.8
8.0

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 8.1
21 to 71
Resilience: Unit (Modulus of Resilience), kJ/m3 330
220 to 800
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 65
19
Strength to Weight: Axial, points 40
15 to 18
Strength to Weight: Bending, points 50
16 to 18
Thermal Diffusivity, mm2/s 47
29
Thermal Shock Resistance, points 16
14 to 18