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ISO-WD43150 Magnesium vs. C68300 Brass

ISO-WD43150 magnesium belongs to the magnesium alloys classification, while C68300 brass belongs to the copper alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, 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 C68300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 2.8
15
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
40
Shear Strength, MPa 140
260
Tensile Strength: Ultimate (UTS), MPa 250
430
Tensile Strength: Yield (Proof), MPa 150
260

Thermal Properties

Latent Heat of Fusion, J/g 350
180
Maximum Temperature: Mechanical, °C 95
120
Melting Completion (Liquidus), °C 610
900
Melting Onset (Solidus), °C 590
890
Specific Heat Capacity, J/kg-K 990
390
Thermal Conductivity, W/m-K 140
120
Thermal Expansion, µm/m-K 27
20

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.7
8.0
Embodied Carbon, kg CO2/kg material 24
2.8
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 970
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.1
56
Resilience: Unit (Modulus of Resilience), kJ/m3 250
330
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 41
15
Strength to Weight: Bending, points 52
16
Thermal Diffusivity, mm2/s 81
38
Thermal Shock Resistance, points 14
14

Alloy Composition


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Antimony (Sb), % 0
0.3 to 1.0
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 0 to 0.050
59 to 63
Lead (Pb), % 0
0 to 0.090
Magnesium (Mg), % 97.5 to 98.8
0
Manganese (Mn), % 1.2 to 2.0
0
Nickel (Ni), % 0 to 0.010
0
Silicon (Si), % 0 to 0.1
0.3 to 1.0
Tin (Sn), % 0
0.050 to 0.2
Zinc (Zn), % 0
34.2 to 40.4
Residuals, % 0 to 0.3
0 to 0.5