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EN-MC65220 Magnesium vs. C38000 Brass

EN-MC65220 magnesium belongs to the magnesium alloys classification, while C38000 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (5, 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-MC65220 magnesium and the bottom bar is C38000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 2.2
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 17
39
Shear Strength, MPa 150
230
Tensile Strength: Ultimate (UTS), MPa 270
380
Tensile Strength: Yield (Proof), MPa 200
120

Thermal Properties

Latent Heat of Fusion, J/g 340
170
Maximum Temperature: Mechanical, °C 160
110
Melting Completion (Liquidus), °C 610
800
Melting Onset (Solidus), °C 550
760
Specific Heat Capacity, J/kg-K 980
380
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 26
21

Otherwise Unclassified Properties

Base Metal Price, % relative 80
22
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 27
2.7
Embodied Energy, MJ/kg 210
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
50
Resilience: Unit (Modulus of Resilience), kJ/m3 450
74
Stiffness to Weight: Axial, points 13
7.1
Stiffness to Weight: Bending, points 62
19
Strength to Weight: Axial, points 40
13
Strength to Weight: Bending, points 49
14
Thermal Diffusivity, mm2/s 61
37
Thermal Shock Resistance, points 17
13

Alloy Composition


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Aluminum (Al), % 0
0 to 0.5
Copper (Cu), % 0.050 to 0.1
55 to 60
Iron (Fe), % 0 to 0.010
0 to 0.35
Lead (Pb), % 0
1.5 to 2.5
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Silicon (Si), % 0 to 0.010
0
Silver (Ag), % 1.3 to 1.7
0
Tin (Sn), % 0
0 to 0.3
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
35.9 to 43.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.5