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EN-MC21320 Magnesium vs. C42600 Brass

EN-MC21320 magnesium belongs to the magnesium alloys classification, while C42600 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-MC21320 magnesium and the bottom bar is C42600 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 7.5
1.1 to 40
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
42
Shear Strength, MPa 130
280 to 470
Tensile Strength: Ultimate (UTS), MPa 230
410 to 830
Tensile Strength: Yield (Proof), MPa 140
220 to 810

Thermal Properties

Latent Heat of Fusion, J/g 370
200
Maximum Temperature: Mechanical, °C 110
180
Melting Completion (Liquidus), °C 600
1030
Melting Onset (Solidus), °C 530
1010
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 66
110
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
25
Electrical Conductivity: Equal Weight (Specific), % IACS 91
26

Otherwise Unclassified Properties

Base Metal Price, % relative 12
31
Density, g/cm3 1.6
8.7
Embodied Carbon, kg CO2/kg material 23
2.9
Embodied Energy, MJ/kg 160
48
Embodied Water, L/kg 980
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
9.4 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 200
230 to 2970
Stiffness to Weight: Axial, points 15
7.1
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 38
13 to 27
Strength to Weight: Bending, points 50
14 to 23
Thermal Diffusivity, mm2/s 40
33
Thermal Shock Resistance, points 13
15 to 29

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Copper (Cu), % 0 to 0.010
87 to 90
Iron (Fe), % 0 to 0.0050
0.050 to 0.2
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0.050 to 0.2
Phosphorus (P), % 0
0.020 to 0.050
Silicon (Si), % 0.5 to 1.5
0
Tin (Sn), % 0
2.5 to 4.0
Zinc (Zn), % 0 to 0.2
5.3 to 10.4
Residuals, % 0 to 0.010
0 to 0.2