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WE54A Magnesium vs. CC491K Bronze

WE54A magnesium belongs to the magnesium alloys classification, while CC491K bronze 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 CC491K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
73
Elastic (Young's, Tensile) Modulus, GPa 44
110
Elongation at Break, % 4.3 to 5.6
13
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 270 to 300
260
Tensile Strength: Yield (Proof), MPa 180
120

Thermal Properties

Latent Heat of Fusion, J/g 330
190
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 640
980
Melting Onset (Solidus), °C 570
900
Specific Heat Capacity, J/kg-K 960
370
Thermal Conductivity, W/m-K 52
71
Thermal Expansion, µm/m-K 25
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
15
Electrical Conductivity: Equal Weight (Specific), % IACS 47
15

Otherwise Unclassified Properties

Base Metal Price, % relative 34
31
Density, g/cm3 1.9
8.9
Embodied Carbon, kg CO2/kg material 29
3.1
Embodied Energy, MJ/kg 260
51
Embodied Water, L/kg 900
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10 to 14
27
Resilience: Unit (Modulus of Resilience), kJ/m3 360 to 380
67
Stiffness to Weight: Axial, points 13
6.7
Stiffness to Weight: Bending, points 62
18
Strength to Weight: Axial, points 39 to 43
8.1
Strength to Weight: Bending, points 49 to 51
10
Thermal Diffusivity, mm2/s 28
22
Thermal Shock Resistance, points 18 to 19
9.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0 to 0.030
81 to 87
Iron (Fe), % 0 to 0.010
0 to 0.3
Lead (Pb), % 0
4.0 to 6.0
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 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0 to 0.010
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
4.0 to 6.0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0