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C67300 Bronze vs. ZK51A Magnesium

C67300 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 (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 C67300 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, % 12
4.7
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 41
18
Shear Strength, MPa 300
160
Tensile Strength: Ultimate (UTS), MPa 500
240
Tensile Strength: Yield (Proof), MPa 340
150

Thermal Properties

Latent Heat of Fusion, J/g 190
340
Maximum Temperature: Mechanical, °C 130
120
Melting Completion (Liquidus), °C 870
640
Melting Onset (Solidus), °C 830
550
Specific Heat Capacity, J/kg-K 390
970
Thermal Conductivity, W/m-K 95
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 8.0
1.8
Embodied Carbon, kg CO2/kg material 2.7
24
Embodied Energy, MJ/kg 46
160
Embodied Water, L/kg 320
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
10
Resilience: Unit (Modulus of Resilience), kJ/m3 550
260
Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 20
64
Strength to Weight: Axial, points 17
36
Strength to Weight: Bending, points 17
47
Thermal Diffusivity, mm2/s 30
61
Thermal Shock Resistance, points 16
15

Alloy Composition

Aluminum (Al), % 0 to 0.25
0
Copper (Cu), % 58 to 63
0 to 0.1
Iron (Fe), % 0 to 0.5
0
Lead (Pb), % 0.4 to 3.0
0
Magnesium (Mg), % 0
93.1 to 95.9
Manganese (Mn), % 2.0 to 3.5
0
Nickel (Ni), % 0 to 0.25
0 to 0.010
Silicon (Si), % 0.5 to 1.5
0
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 27.2 to 39.1
3.6 to 5.5
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3