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EN-MC21320 Magnesium vs. C26000 Brass

EN-MC21320 magnesium belongs to the magnesium alloys classification, while C26000 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 C26000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 7.5
2.5 to 66
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
41
Shear Strength, MPa 130
230 to 390
Tensile Strength: Ultimate (UTS), MPa 230
320 to 680
Tensile Strength: Yield (Proof), MPa 140
110 to 570

Thermal Properties

Latent Heat of Fusion, J/g 370
180
Maximum Temperature: Mechanical, °C 110
140
Melting Completion (Liquidus), °C 600
950
Melting Onset (Solidus), °C 530
920
Specific Heat Capacity, J/kg-K 1000
390
Thermal Conductivity, W/m-K 66
120
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
28
Electrical Conductivity: Equal Weight (Specific), % IACS 91
31

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 1.6
8.2
Embodied Carbon, kg CO2/kg material 23
2.7
Embodied Energy, MJ/kg 160
45
Embodied Water, L/kg 980
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15
6.1 to 420
Resilience: Unit (Modulus of Resilience), kJ/m3 200
51 to 1490
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 72
19
Strength to Weight: Axial, points 38
11 to 23
Strength to Weight: Bending, points 50
13 to 21
Thermal Diffusivity, mm2/s 40
38
Thermal Shock Resistance, points 13
11 to 23

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Bismuth (Bi), % 0
0 to 0.0059
Copper (Cu), % 0 to 0.010
68.5 to 71.5
Iron (Fe), % 0 to 0.0050
0 to 0.050
Lead (Pb), % 0
0 to 0.070
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
28.1 to 31.5
Residuals, % 0 to 0.010
0 to 0.3