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EN-MC21320 Magnesium vs. C43400 Brass

EN-MC21320 magnesium belongs to the magnesium alloys classification, while C43400 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 C43400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 7.5
3.0 to 49
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
42
Shear Strength, MPa 130
250 to 390
Tensile Strength: Ultimate (UTS), MPa 230
310 to 690
Tensile Strength: Yield (Proof), MPa 140
110 to 560

Thermal Properties

Latent Heat of Fusion, J/g 370
190
Maximum Temperature: Mechanical, °C 110
170
Melting Completion (Liquidus), °C 600
1020
Melting Onset (Solidus), °C 530
990
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 66
140
Thermal Expansion, µm/m-K 26
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
31
Electrical Conductivity: Equal Weight (Specific), % IACS 91
32

Otherwise Unclassified Properties

Base Metal Price, % relative 12
28
Density, g/cm3 1.6
8.6
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
44
Embodied Water, L/kg 980
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
19 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 200
57 to 1420
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 72
19
Strength to Weight: Axial, points 38
10 to 22
Strength to Weight: Bending, points 50
12 to 20
Thermal Diffusivity, mm2/s 40
41
Thermal Shock Resistance, points 13
11 to 24

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Copper (Cu), % 0 to 0.010
84 to 87
Iron (Fe), % 0 to 0.0050
0 to 0.050
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
Silicon (Si), % 0.5 to 1.5
0
Tin (Sn), % 0
0.4 to 1.0
Zinc (Zn), % 0 to 0.2
11.4 to 15.6
Residuals, % 0 to 0.010
0 to 0.5