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EN-MC21320 Magnesium vs. C41300 Brass

EN-MC21320 magnesium belongs to the magnesium alloys classification, while C41300 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 C41300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 7.5
2.0 to 44
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 18
42
Shear Strength, MPa 130
230 to 370
Tensile Strength: Ultimate (UTS), MPa 230
300 to 630
Tensile Strength: Yield (Proof), MPa 140
120 to 570

Thermal Properties

Latent Heat of Fusion, J/g 370
200
Maximum Temperature: Mechanical, °C 110
180
Melting Completion (Liquidus), °C 600
1040
Melting Onset (Solidus), °C 530
1010
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 66
130
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
30
Electrical Conductivity: Equal Weight (Specific), % IACS 91
31

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.6
8.7
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
11 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 200
69 to 1440
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 72
18
Strength to Weight: Axial, points 38
9.6 to 20
Strength to Weight: Bending, points 50
11 to 19
Thermal Diffusivity, mm2/s 40
40
Thermal Shock Resistance, points 13
11 to 22

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0
Copper (Cu), % 0 to 0.010
89 to 93
Iron (Fe), % 0 to 0.0050
0 to 0.050
Lead (Pb), % 0
0 to 0.1
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
0.7 to 1.3
Zinc (Zn), % 0 to 0.2
5.1 to 10.3
Residuals, % 0 to 0.010
0 to 0.5