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ISO-WD43150 Magnesium vs. C68400 Brass

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while C68400 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 ISO-WD43150 magnesium and the bottom bar is C68400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 2.8
18
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
41
Shear Strength, MPa 140
330
Tensile Strength: Ultimate (UTS), MPa 250
540
Tensile Strength: Yield (Proof), MPa 150
310

Thermal Properties

Latent Heat of Fusion, J/g 350
210
Maximum Temperature: Mechanical, °C 95
130
Melting Completion (Liquidus), °C 610
840
Melting Onset (Solidus), °C 590
820
Specific Heat Capacity, J/kg-K 990
400
Thermal Conductivity, W/m-K 140
66
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
87
Electrical Conductivity: Equal Weight (Specific), % IACS 170
99

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.7
7.9
Embodied Carbon, kg CO2/kg material 24
2.7
Embodied Energy, MJ/kg 160
47
Embodied Water, L/kg 970
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
81
Resilience: Unit (Modulus of Resilience), kJ/m3 250
460
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 41
19
Strength to Weight: Bending, points 52
19
Thermal Diffusivity, mm2/s 81
21
Thermal Shock Resistance, points 14
18

Alloy Composition


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Aluminum (Al), % 0
0 to 0.5
Boron (B), % 0
0.0010 to 0.030
Copper (Cu), % 0 to 0.050
59 to 64
Iron (Fe), % 0
0 to 1.0
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0.2 to 1.5
Nickel (Ni), % 0 to 0.010
0 to 0.5
Phosphorus (P), % 0
0.030 to 0.3
Silicon (Si), % 0 to 0.1
1.5 to 2.5
Tin (Sn), % 0
0 to 0.5
Zinc (Zn), % 0
28.6 to 39.3
Residuals, % 0 to 0.3
0 to 0.5