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EN-MC21230 Magnesium vs. C32000 Brass

EN-MC21230 magnesium belongs to the magnesium alloys classification, while C32000 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-MC21230 magnesium and the bottom bar is C32000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 10
6.8 to 29
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
41
Shear Strength, MPa 130
180 to 280
Tensile Strength: Ultimate (UTS), MPa 220
270 to 470
Tensile Strength: Yield (Proof), MPa 140
78 to 390

Thermal Properties

Latent Heat of Fusion, J/g 350
190
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 600
1020
Melting Onset (Solidus), °C 520
990
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 72
160
Thermal Expansion, µm/m-K 27
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
36
Electrical Conductivity: Equal Weight (Specific), % IACS 63
37

Otherwise Unclassified Properties

Base Metal Price, % relative 12
28
Density, g/cm3 1.7
8.7
Embodied Carbon, kg CO2/kg material 23
2.6
Embodied Energy, MJ/kg 160
42
Embodied Water, L/kg 990
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
30 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 200
28 to 680
Stiffness to Weight: Axial, points 15
7.1
Stiffness to Weight: Bending, points 71
18
Strength to Weight: Axial, points 36
8.8 to 15
Strength to Weight: Bending, points 48
11 to 16
Thermal Diffusivity, mm2/s 43
47
Thermal Shock Resistance, points 13
9.5 to 16

Alloy Composition

Aluminum (Al), % 5.5 to 8.5
0
Copper (Cu), % 0 to 0.010
83.5 to 86.5
Iron (Fe), % 0 to 0.0050
0 to 0.1
Lead (Pb), % 0
1.5 to 2.2
Magnesium (Mg), % 90.5 to 94.4
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0 to 0.25
Silicon (Si), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.3
10.6 to 15
Residuals, % 0 to 0.010
0 to 0.4