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EN-MC95310 Magnesium vs. C69430 Brass

EN-MC95310 magnesium belongs to the magnesium alloys classification, while C69430 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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-MC95310 magnesium and the bottom bar is C69430 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 2.2
17
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
42
Shear Strength, MPa 160
350
Tensile Strength: Ultimate (UTS), MPa 280
570
Tensile Strength: Yield (Proof), MPa 190
280

Thermal Properties

Latent Heat of Fusion, J/g 330
260
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 650
920
Melting Onset (Solidus), °C 540
820
Specific Heat Capacity, J/kg-K 960
410
Thermal Conductivity, W/m-K 51
26
Thermal Expansion, µm/m-K 25
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
6.2
Electrical Conductivity: Equal Weight (Specific), % IACS 50
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 34
27
Density, g/cm3 1.9
8.3
Embodied Carbon, kg CO2/kg material 29
2.7
Embodied Energy, MJ/kg 260
44
Embodied Water, L/kg 900
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
80
Resilience: Unit (Modulus of Resilience), kJ/m3 420
340
Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 61
19
Strength to Weight: Axial, points 40
19
Strength to Weight: Bending, points 49
18
Thermal Diffusivity, mm2/s 28
7.7
Thermal Shock Resistance, points 18
20

Alloy Composition


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Arsenic (As), % 0
0.030 to 0.060
Copper (Cu), % 0 to 0.030
80 to 83
Iron (Fe), % 0 to 0.010
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
3.5 to 4.5
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
11.4 to 16.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5