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C86400 Bronze vs. ZK61A Magnesium

C86400 bronze belongs to the copper alloys classification, while ZK61A 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 C86400 bronze and the bottom bar is ZK61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
46
Elongation at Break, % 17
5.8 to 7.1
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
18
Tensile Strength: Ultimate (UTS), MPa 470
290 to 310
Tensile Strength: Yield (Proof), MPa 150
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 170
330
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 880
640
Melting Onset (Solidus), °C 860
530
Specific Heat Capacity, J/kg-K 390
960
Thermal Conductivity, W/m-K 88
120
Thermal Expansion, µm/m-K 21
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 19
29
Electrical Conductivity: Equal Weight (Specific), % IACS 22
130

Otherwise Unclassified Properties

Base Metal Price, % relative 23
13
Density, g/cm3 7.9
1.9
Embodied Carbon, kg CO2/kg material 2.8
23
Embodied Energy, MJ/kg 48
160
Embodied Water, L/kg 330
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 110
370 to 420
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 20
62
Strength to Weight: Axial, points 16
42 to 45
Strength to Weight: Bending, points 17
50 to 53
Thermal Diffusivity, mm2/s 29
65
Thermal Shock Resistance, points 16
17 to 18

Alloy Composition

Aluminum (Al), % 0.5 to 1.5
0
Copper (Cu), % 56 to 62
0 to 0.1
Iron (Fe), % 0.4 to 2.0
0
Lead (Pb), % 0.5 to 1.5
0
Magnesium (Mg), % 0
92.1 to 93.9
Manganese (Mn), % 0.1 to 1.0
0
Nickel (Ni), % 0 to 1.0
0 to 0.010
Tin (Sn), % 0.5 to 1.5
0
Zinc (Zn), % 34 to 42
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3