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C62500 Bronze vs. ZK51A Magnesium

C62500 bronze belongs to the copper alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 30 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 C62500 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, % 1.0
4.7
Fatigue Strength, MPa 460
62
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 42
18
Shear Strength, MPa 410
160
Tensile Strength: Ultimate (UTS), MPa 690
240
Tensile Strength: Yield (Proof), MPa 410
150

Thermal Properties

Latent Heat of Fusion, J/g 230
340
Maximum Temperature: Mechanical, °C 230
120
Melting Completion (Liquidus), °C 1050
640
Melting Onset (Solidus), °C 1050
550
Specific Heat Capacity, J/kg-K 460
970
Thermal Conductivity, W/m-K 47
110
Thermal Expansion, µm/m-K 18
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
28
Electrical Conductivity: Equal Weight (Specific), % IACS 11
140

Otherwise Unclassified Properties

Base Metal Price, % relative 26
13
Density, g/cm3 8.1
1.8
Embodied Carbon, kg CO2/kg material 3.3
24
Embodied Energy, MJ/kg 55
160
Embodied Water, L/kg 410
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.0
10
Resilience: Unit (Modulus of Resilience), kJ/m3 750
260
Stiffness to Weight: Axial, points 7.8
14
Stiffness to Weight: Bending, points 20
64
Strength to Weight: Axial, points 24
36
Strength to Weight: Bending, points 22
47
Thermal Diffusivity, mm2/s 13
61
Thermal Shock Resistance, points 24
15

Alloy Composition

Aluminum (Al), % 12.5 to 13.5
0
Copper (Cu), % 78.5 to 84
0 to 0.1
Iron (Fe), % 3.5 to 5.5
0
Magnesium (Mg), % 0
93.1 to 95.9
Manganese (Mn), % 0 to 2.0
0
Nickel (Ni), % 0
0 to 0.010
Zinc (Zn), % 0
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3