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ZC63A Magnesium vs. C86700 Bronze

ZC63A magnesium belongs to the magnesium alloys classification, while C86700 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 ZC63A magnesium and the bottom bar is C86700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 48
110
Elongation at Break, % 3.3
17
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 19
41
Tensile Strength: Ultimate (UTS), MPa 220
630
Tensile Strength: Yield (Proof), MPa 130
250

Thermal Properties

Latent Heat of Fusion, J/g 330
180
Maximum Temperature: Mechanical, °C 98
130
Melting Completion (Liquidus), °C 550
880
Melting Onset (Solidus), °C 470
860
Specific Heat Capacity, J/kg-K 950
400
Thermal Conductivity, W/m-K 120
89
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 32
17
Electrical Conductivity: Equal Weight (Specific), % IACS 140
19

Otherwise Unclassified Properties

Base Metal Price, % relative 13
23
Density, g/cm3 2.1
7.9
Embodied Carbon, kg CO2/kg material 22
2.9
Embodied Energy, MJ/kg 150
49
Embodied Water, L/kg 920
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
86
Resilience: Unit (Modulus of Resilience), kJ/m3 190
290
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 58
20
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 38
21
Thermal Diffusivity, mm2/s 58
28
Thermal Shock Resistance, points 12
21

Alloy Composition


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Aluminum (Al), % 0
1.0 to 3.0
Copper (Cu), % 2.4 to 3.0
55 to 60
Iron (Fe), % 0
1.0 to 3.0
Lead (Pb), % 0
0.5 to 1.5
Magnesium (Mg), % 89.2 to 91.9
0
Manganese (Mn), % 0.25 to 0.75
1.0 to 3.5
Nickel (Ni), % 0 to 0.010
0 to 1.0
Silicon (Si), % 0 to 0.2
0
Tin (Sn), % 0
0 to 1.5
Zinc (Zn), % 5.5 to 6.5
30 to 38
Residuals, % 0 to 0.3
0 to 1.0