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EN-MC21320 Magnesium vs. C41500 Brass

EN-MC21320 magnesium belongs to the magnesium alloys classification, while C41500 brass belongs to the copper alloys. There are 29 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 EN-MC21320 magnesium and the bottom bar is C41500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 7.5
2.0 to 42
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
42
Shear Strength, MPa 130
220 to 360
Tensile Strength: Ultimate (UTS), MPa 230
340 to 560
Tensile Strength: Yield (Proof), MPa 140
190 to 550

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
120
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
28
Electrical Conductivity: Equal Weight (Specific), % IACS 91
29

Otherwise Unclassified Properties

Base Metal Price, % relative 12
30
Density, g/cm3 1.6
8.7
Embodied Carbon, kg CO2/kg material 23
2.8
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 980
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
11 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 200
160 to 1340
Stiffness to Weight: Axial, points 15
7.1
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 38
11 to 18
Strength to Weight: Bending, points 50
12 to 17
Thermal Diffusivity, mm2/s 40
37
Thermal Shock Resistance, points 13
12 to 20

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Copper (Cu), % 0 to 0.010
89 to 93
Iron (Fe), % 0 to 0.0050
0 to 0.050
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 92.5 to 95.9
0
Manganese (Mn), % 0.1 to 0.7
0
Nickel (Ni), % 0 to 0.0020
0
Silicon (Si), % 0.5 to 1.5
0
Tin (Sn), % 0
1.5 to 2.2
Zinc (Zn), % 0 to 0.2
4.2 to 9.5
Residuals, % 0 to 0.010
0 to 0.5