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ZK40A Magnesium vs. C86200 Bronze

ZK40A magnesium belongs to the magnesium alloys classification, while C86200 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (2, 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 C86200 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 4.2
21
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
42
Tensile Strength: Ultimate (UTS), MPa 280
710
Tensile Strength: Yield (Proof), MPa 260
350

Thermal Properties

Latent Heat of Fusion, J/g 340
190
Maximum Temperature: Mechanical, °C 120
160
Melting Completion (Liquidus), °C 600
940
Melting Onset (Solidus), °C 540
900
Specific Heat Capacity, J/kg-K 970
410
Thermal Conductivity, W/m-K 110
35
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 130
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
23
Density, g/cm3 1.8
8.0
Embodied Carbon, kg CO2/kg material 24
2.9
Embodied Energy, MJ/kg 160
49
Embodied Water, L/kg 950
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
120
Resilience: Unit (Modulus of Resilience), kJ/m3 740
540
Stiffness to Weight: Axial, points 14
7.8
Stiffness to Weight: Bending, points 65
20
Strength to Weight: Axial, points 43
25
Strength to Weight: Bending, points 53
22
Thermal Diffusivity, mm2/s 62
11
Thermal Shock Resistance, points 17
23

Alloy Composition


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Aluminum (Al), % 0
3.0 to 4.9
Copper (Cu), % 0
60 to 66
Iron (Fe), % 0
2.0 to 4.0
Lead (Pb), % 0
0 to 0.2
Magnesium (Mg), % 94.2 to 96.1
0
Manganese (Mn), % 0
2.5 to 5.0
Nickel (Ni), % 0
0 to 1.0
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 3.5 to 4.5
22 to 28
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0 to 1.0