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C86100 Bronze vs. ZK51A Magnesium

C86100 bronze belongs to the copper alloys classification, while ZK51A magnesium belongs to the magnesium 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 C86100 bronze and the bottom bar is ZK51A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 20
4.7
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 43
18
Tensile Strength: Ultimate (UTS), MPa 660
240
Tensile Strength: Yield (Proof), MPa 350
150

Thermal Properties

Latent Heat of Fusion, J/g 200
340
Maximum Temperature: Mechanical, °C 170
120
Melting Completion (Liquidus), °C 940
640
Melting Onset (Solidus), °C 900
550
Specific Heat Capacity, J/kg-K 420
970
Thermal Conductivity, W/m-K 35
110
Thermal Expansion, µm/m-K 20
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
28
Electrical Conductivity: Equal Weight (Specific), % IACS 9.0
140

Otherwise Unclassified Properties

Base Metal Price, % relative 24
13
Density, g/cm3 8.0
1.8
Embodied Carbon, kg CO2/kg material 2.9
24
Embodied Energy, MJ/kg 49
160
Embodied Water, L/kg 350
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
10
Resilience: Unit (Modulus of Resilience), kJ/m3 530
260
Stiffness to Weight: Axial, points 7.8
14
Stiffness to Weight: Bending, points 20
64
Strength to Weight: Axial, points 23
36
Strength to Weight: Bending, points 21
47
Thermal Diffusivity, mm2/s 10
61
Thermal Shock Resistance, points 21
15

Alloy Composition

Aluminum (Al), % 4.5 to 5.5
0
Copper (Cu), % 66 to 68
0 to 0.1
Iron (Fe), % 2.0 to 4.0
0
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0
93.1 to 95.9
Manganese (Mn), % 2.5 to 5.0
0
Nickel (Ni), % 0
0 to 0.010
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 17.3 to 25
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3