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EN-MC21230 Magnesium vs. C44300 Brass

EN-MC21230 magnesium belongs to the magnesium alloys classification, while C44300 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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 C44300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
41
Tensile Strength: Ultimate (UTS), MPa 220
350
Tensile Strength: Yield (Proof), MPa 140
120

Thermal Properties

Latent Heat of Fusion, J/g 350
180
Maximum Temperature: Mechanical, °C 120
140
Melting Completion (Liquidus), °C 600
940
Melting Onset (Solidus), °C 520
900
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 72
110
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
25
Electrical Conductivity: Equal Weight (Specific), % IACS 63
27

Otherwise Unclassified Properties

Base Metal Price, % relative 12
26
Density, g/cm3 1.7
8.3
Embodied Carbon, kg CO2/kg material 23
2.8
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 990
330

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 200
65
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 36
12
Strength to Weight: Bending, points 48
13
Thermal Diffusivity, mm2/s 43
35
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 5.5 to 8.5
0
Arsenic (As), % 0
0.020 to 0.060
Copper (Cu), % 0 to 0.010
70 to 73
Iron (Fe), % 0 to 0.0050
0 to 0.060
Lead (Pb), % 0
0 to 0.070
Magnesium (Mg), % 90.5 to 94.4
0
Manganese (Mn), % 0.1 to 0.6
0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0 to 0.1
0
Tin (Sn), % 0
0.9 to 1.2
Zinc (Zn), % 0 to 0.3
25.2 to 29.1
Residuals, % 0 to 0.010
0 to 0.4