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ZK40A Magnesium vs. C61400 Bronze

ZK40A magnesium belongs to the magnesium alloys classification, while C61400 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 ZK40A magnesium and the bottom bar is C61400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 4.2
34 to 40
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Shear Strength, MPa 160
370 to 380
Tensile Strength: Ultimate (UTS), MPa 280
540 to 570
Tensile Strength: Yield (Proof), MPa 260
220 to 270

Thermal Properties

Latent Heat of Fusion, J/g 340
220
Maximum Temperature: Mechanical, °C 120
220
Melting Completion (Liquidus), °C 600
1050
Melting Onset (Solidus), °C 540
1040
Specific Heat Capacity, J/kg-K 970
420
Thermal Conductivity, W/m-K 110
67
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
14
Electrical Conductivity: Equal Weight (Specific), % IACS 130
15

Otherwise Unclassified Properties

Base Metal Price, % relative 13
28
Density, g/cm3 1.8
8.5
Embodied Carbon, kg CO2/kg material 24
3.0
Embodied Energy, MJ/kg 160
48
Embodied Water, L/kg 950
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
160 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 740
210 to 310
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 65
19
Strength to Weight: Axial, points 43
18 to 19
Strength to Weight: Bending, points 53
17 to 18
Thermal Diffusivity, mm2/s 62
19
Thermal Shock Resistance, points 17
18 to 20

Alloy Composition


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Aluminum (Al), % 0
6.0 to 8.0
Copper (Cu), % 0
86 to 92.5
Iron (Fe), % 0
1.5 to 3.5
Lead (Pb), % 0
0 to 0.010
Magnesium (Mg), % 94.2 to 96.1
0
Manganese (Mn), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.015
Zinc (Zn), % 3.5 to 4.5
0 to 1.0
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.5