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C67000 Bronze vs. ZK51A Magnesium

C67000 bronze belongs to the copper alloys classification, while ZK51A magnesium belongs to the magnesium alloys. There are 29 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 C67000 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, % 5.6 to 11
4.7
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 42
18
Shear Strength, MPa 390 to 510
160
Tensile Strength: Ultimate (UTS), MPa 660 to 880
240
Tensile Strength: Yield (Proof), MPa 350 to 540
150

Thermal Properties

Latent Heat of Fusion, J/g 190
340
Maximum Temperature: Mechanical, °C 160
120
Melting Completion (Liquidus), °C 900
640
Melting Onset (Solidus), °C 850
550
Specific Heat Capacity, J/kg-K 410
970
Thermal Conductivity, W/m-K 99
110
Thermal Expansion, µm/m-K 20
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 22
28
Electrical Conductivity: Equal Weight (Specific), % IACS 25
140

Otherwise Unclassified Properties

Base Metal Price, % relative 23
13
Density, g/cm3 7.9
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 43 to 62
10
Resilience: Unit (Modulus of Resilience), kJ/m3 560 to 1290
260
Stiffness to Weight: Axial, points 7.8
14
Stiffness to Weight: Bending, points 20
64
Strength to Weight: Axial, points 23 to 31
36
Strength to Weight: Bending, points 21 to 26
47
Thermal Diffusivity, mm2/s 30
61
Thermal Shock Resistance, points 21 to 29
15

Alloy Composition

Aluminum (Al), % 3.0 to 6.0
0
Copper (Cu), % 63 to 68
0 to 0.1
Iron (Fe), % 2.0 to 4.0
0
Lead (Pb), % 0 to 0.2
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 0.5
0
Zinc (Zn), % 21.8 to 32.5
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3