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WE43B Magnesium vs. C95700 Bronze

WE43B magnesium belongs to the magnesium alloys classification, while C95700 bronze belongs to the copper alloys. There are 28 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 WE43B magnesium and the bottom bar is C95700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
130
Elongation at Break, % 2.2
23
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
47
Tensile Strength: Ultimate (UTS), MPa 250
680
Tensile Strength: Yield (Proof), MPa 200
310

Thermal Properties

Latent Heat of Fusion, J/g 330
230
Maximum Temperature: Mechanical, °C 180
220
Melting Completion (Liquidus), °C 640
990
Melting Onset (Solidus), °C 550
950
Specific Heat Capacity, J/kg-K 960
440
Thermal Conductivity, W/m-K 51
12
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 53
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 34
26
Density, g/cm3 1.9
8.2
Embodied Carbon, kg CO2/kg material 28
3.3
Embodied Energy, MJ/kg 250
54
Embodied Water, L/kg 910
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.2
130
Resilience: Unit (Modulus of Resilience), kJ/m3 430
390
Stiffness to Weight: Axial, points 13
8.5
Stiffness to Weight: Bending, points 61
20
Strength to Weight: Axial, points 36
23
Strength to Weight: Bending, points 46
21
Thermal Diffusivity, mm2/s 28
3.3
Thermal Shock Resistance, points 15
21

Alloy Composition


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Aluminum (Al), % 0
7.0 to 8.5
Copper (Cu), % 0 to 0.020
71 to 78.5
Iron (Fe), % 0 to 0.010
2.0 to 4.0
Lead (Pb), % 0
0 to 0.030
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 89.8 to 93.5
0
Manganese (Mn), % 0 to 0.030
11 to 14
Nickel (Ni), % 0 to 0.0050
1.5 to 3.0
Silicon (Si), % 0
0 to 0.1
Unspecified Rare Earths, % 2.4 to 4.4
0
Yttrium (Y), % 3.7 to 4.3
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0
0 to 0.5