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WE54A Magnesium vs. C85400 Brass

WE54A magnesium belongs to the magnesium alloys classification, while C85400 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 WE54A magnesium and the bottom bar is C85400 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
55
Elastic (Young's, Tensile) Modulus, GPa 44
100
Elongation at Break, % 4.3 to 5.6
23
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 270 to 300
220
Tensile Strength: Yield (Proof), MPa 180
85

Thermal Properties

Latent Heat of Fusion, J/g 330
180
Maximum Temperature: Mechanical, °C 170
130
Melting Completion (Liquidus), °C 640
940
Melting Onset (Solidus), °C 570
940
Specific Heat Capacity, J/kg-K 960
380
Thermal Conductivity, W/m-K 52
89
Thermal Expansion, µm/m-K 25
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
20
Electrical Conductivity: Equal Weight (Specific), % IACS 47
22

Otherwise Unclassified Properties

Base Metal Price, % relative 34
25
Density, g/cm3 1.9
8.3
Embodied Carbon, kg CO2/kg material 29
2.8
Embodied Energy, MJ/kg 260
46
Embodied Water, L/kg 900
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 14
40
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
35
Stiffness to Weight: Axial, points 13
7.0
Stiffness to Weight: Bending, points 62
19
Strength to Weight: Axial, points 39 to 43
7.5
Strength to Weight: Bending, points 49 to 51
9.9
Thermal Diffusivity, mm2/s 28
28
Thermal Shock Resistance, points 18 to 19
7.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Copper (Cu), % 0 to 0.030
65 to 70
Iron (Fe), % 0 to 0.010
0 to 0.7
Lead (Pb), % 0
1.5 to 3.8
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.7 to 93.4
0
Manganese (Mn), % 0 to 0.030
0
Nickel (Ni), % 0 to 0.0050
0 to 1.0
Silicon (Si), % 0 to 0.010
0 to 0.050
Tin (Sn), % 0
0.5 to 1.5
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
24 to 32
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 1.1