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EN-MC21230 Magnesium vs. C26200 Brass

EN-MC21230 magnesium belongs to the magnesium alloys classification, while C26200 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-MC21230 magnesium and the bottom bar is C26200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 10
3.0 to 180
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
41
Shear Strength, MPa 130
230 to 390
Tensile Strength: Ultimate (UTS), MPa 220
330 to 770
Tensile Strength: Yield (Proof), MPa 140
110 to 490

Thermal Properties

Latent Heat of Fusion, J/g 350
180
Maximum Temperature: Mechanical, °C 120
140
Melting Completion (Liquidus), °C 600
950
Melting Onset (Solidus), °C 520
920
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 72
120
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
28
Electrical Conductivity: Equal Weight (Specific), % IACS 63
31

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 1.7
8.2
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 990
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
19 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 200
62 to 1110
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 71
19
Strength to Weight: Axial, points 36
11 to 26
Strength to Weight: Bending, points 48
13 to 23
Thermal Diffusivity, mm2/s 43
38
Thermal Shock Resistance, points 13
11 to 26

Alloy Composition

Aluminum (Al), % 5.5 to 8.5
0
Copper (Cu), % 0 to 0.010
67 to 70
Iron (Fe), % 0 to 0.0050
0 to 0.050
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
Zinc (Zn), % 0 to 0.3
29.6 to 33
Residuals, % 0 to 0.010
0 to 0.3