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EN-MC21320 Magnesium vs. C33200 Brass

EN-MC21320 magnesium belongs to the magnesium alloys classification, while C33200 brass belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, 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 C33200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 7.5
7.0 to 60
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
40
Shear Strength, MPa 130
240 to 300
Tensile Strength: Ultimate (UTS), MPa 230
320 to 520
Tensile Strength: Yield (Proof), MPa 140
110 to 450

Thermal Properties

Latent Heat of Fusion, J/g 370
170
Maximum Temperature: Mechanical, °C 110
130
Melting Completion (Liquidus), °C 600
930
Melting Onset (Solidus), °C 530
900
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 66
120
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
26
Electrical Conductivity: Equal Weight (Specific), % IACS 91
28

Otherwise Unclassified Properties

Base Metal Price, % relative 12
24
Density, g/cm3 1.6
8.2
Embodied Carbon, kg CO2/kg material 23
2.6
Embodied Energy, MJ/kg 160
44
Embodied Water, L/kg 980
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
35 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 200
60 to 960
Stiffness to Weight: Axial, points 15
7.1
Stiffness to Weight: Bending, points 72
19
Strength to Weight: Axial, points 38
11 to 17
Strength to Weight: Bending, points 50
13 to 17
Thermal Diffusivity, mm2/s 40
37
Thermal Shock Resistance, points 13
11 to 17

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Copper (Cu), % 0 to 0.010
65 to 68
Iron (Fe), % 0 to 0.0050
0 to 0.070
Lead (Pb), % 0
1.5 to 2.5
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
Zinc (Zn), % 0 to 0.2
29 to 33.5
Residuals, % 0 to 0.010
0 to 0.4