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EN-MC21230 Magnesium vs. C46500 Brass

EN-MC21230 magnesium belongs to the magnesium alloys classification, while C46500 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 C46500 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 10
18 to 50
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
40
Shear Strength, MPa 130
280 to 380
Tensile Strength: Ultimate (UTS), MPa 220
380 to 610
Tensile Strength: Yield (Proof), MPa 140
190 to 490

Thermal Properties

Latent Heat of Fusion, J/g 350
170
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 600
900
Melting Onset (Solidus), °C 520
890
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 72
120
Thermal Expansion, µm/m-K 27
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
26
Electrical Conductivity: Equal Weight (Specific), % IACS 63
29

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 1.7
8.0
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
47
Embodied Water, L/kg 990
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
99 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 200
170 to 1170
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 36
13 to 21
Strength to Weight: Bending, points 48
15 to 20
Thermal Diffusivity, mm2/s 43
38
Thermal Shock Resistance, points 13
13 to 20

Alloy Composition

Aluminum (Al), % 5.5 to 8.5
0
Arsenic (As), % 0
0.020 to 0.060
Copper (Cu), % 0 to 0.010
59 to 62
Iron (Fe), % 0 to 0.0050
0 to 0.1
Lead (Pb), % 0
0 to 0.2
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
0.5 to 1.0
Zinc (Zn), % 0 to 0.3
36.2 to 40.5
Residuals, % 0 to 0.010
0 to 0.4