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ZK40A Magnesium vs. CC499K Bronze

ZK40A magnesium belongs to the magnesium alloys classification, while CC499K bronze belongs to the copper alloys. There are 28 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 ZK40A magnesium and the bottom bar is CC499K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 4.2
13
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
41
Tensile Strength: Ultimate (UTS), MPa 280
260
Tensile Strength: Yield (Proof), MPa 260
120

Thermal Properties

Latent Heat of Fusion, J/g 340
190
Maximum Temperature: Mechanical, °C 120
170
Melting Completion (Liquidus), °C 600
1000
Melting Onset (Solidus), °C 540
920
Specific Heat Capacity, J/kg-K 970
370
Thermal Conductivity, W/m-K 110
73
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
12
Electrical Conductivity: Equal Weight (Specific), % IACS 130
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
32
Density, g/cm3 1.8
8.8
Embodied Carbon, kg CO2/kg material 24
3.1
Embodied Energy, MJ/kg 160
51
Embodied Water, L/kg 950
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
27
Resilience: Unit (Modulus of Resilience), kJ/m3 740
65
Stiffness to Weight: Axial, points 14
6.9
Stiffness to Weight: Bending, points 65
18
Strength to Weight: Axial, points 43
8.1
Strength to Weight: Bending, points 53
10
Thermal Diffusivity, mm2/s 62
22
Thermal Shock Resistance, points 17
9.2

Alloy Composition


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Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.020
Cadmium (Cd), % 0
0 to 0.020
Chromium (Cr), % 0
0 to 0.020
Copper (Cu), % 0
84 to 88
Iron (Fe), % 0
0 to 0.3
Lead (Pb), % 0
0 to 3.0
Magnesium (Mg), % 94.2 to 96.1
0
Nickel (Ni), % 0
0 to 0.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.010
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0
4.0 to 6.0
Zinc (Zn), % 3.5 to 4.5
4.0 to 6.0
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0