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AM60B Magnesium vs. C95700 Bronze

AM60B magnesium belongs to the magnesium alloys classification, while C95700 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 AM60B magnesium and the bottom bar is C95700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
130
Elongation at Break, % 11
23
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
47
Tensile Strength: Ultimate (UTS), MPa 230
680
Tensile Strength: Yield (Proof), MPa 130
310

Thermal Properties

Latent Heat of Fusion, J/g 350
230
Maximum Temperature: Mechanical, °C 120
220
Melting Completion (Liquidus), °C 620
990
Melting Onset (Solidus), °C 540
950
Specific Heat Capacity, J/kg-K 1000
440
Thermal Conductivity, W/m-K 61
12
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 72
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
26
Density, g/cm3 1.7
8.2
Embodied Carbon, kg CO2/kg material 23
3.3
Embodied Energy, MJ/kg 160
54
Embodied Water, L/kg 990
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
130
Resilience: Unit (Modulus of Resilience), kJ/m3 190
390
Stiffness to Weight: Axial, points 15
8.5
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 38
23
Strength to Weight: Bending, points 50
21
Thermal Diffusivity, mm2/s 37
3.3
Thermal Shock Resistance, points 14
21

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
7.0 to 8.5
Copper (Cu), % 0 to 0.010
71 to 78.5
Iron (Fe), % 0 to 0.0050
2.0 to 4.0
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 92.6 to 94.3
0
Manganese (Mn), % 0.24 to 0.6
11 to 14
Nickel (Ni), % 0 to 0.0020
1.5 to 3.0
Silicon (Si), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.22
0
Residuals, % 0
0 to 0.5