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C95200 Bronze vs. ZK51A Magnesium

C95200 bronze belongs to the copper alloys classification, while ZK51A magnesium belongs to the magnesium 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 C95200 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, % 29
4.7
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 42
18
Tensile Strength: Ultimate (UTS), MPa 520
240
Tensile Strength: Yield (Proof), MPa 190
150

Thermal Properties

Latent Heat of Fusion, J/g 230
340
Maximum Temperature: Mechanical, °C 220
120
Melting Completion (Liquidus), °C 1050
640
Melting Onset (Solidus), °C 1040
550
Specific Heat Capacity, J/kg-K 430
970
Thermal Conductivity, W/m-K 50
110
Thermal Expansion, µm/m-K 18
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
28
Electrical Conductivity: Equal Weight (Specific), % IACS 12
140

Otherwise Unclassified Properties

Base Metal Price, % relative 28
13
Density, g/cm3 8.3
1.8
Embodied Carbon, kg CO2/kg material 3.0
24
Embodied Energy, MJ/kg 50
160
Embodied Water, L/kg 380
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
10
Resilience: Unit (Modulus of Resilience), kJ/m3 170
260
Stiffness to Weight: Axial, points 7.6
14
Stiffness to Weight: Bending, points 19
64
Strength to Weight: Axial, points 17
36
Strength to Weight: Bending, points 17
47
Thermal Diffusivity, mm2/s 14
61
Thermal Shock Resistance, points 19
15

Alloy Composition

Aluminum (Al), % 8.5 to 9.5
0
Copper (Cu), % 86 to 89
0 to 0.1
Iron (Fe), % 2.5 to 4.0
0
Magnesium (Mg), % 0
93.1 to 95.9
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