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AM60A Magnesium vs. C95820 Bronze

AM60A magnesium belongs to the magnesium alloys classification, while C95820 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 AM60A magnesium and the bottom bar is C95820 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
120
Elongation at Break, % 8.8
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
44
Tensile Strength: Ultimate (UTS), MPa 230
730
Tensile Strength: Yield (Proof), MPa 130
310

Thermal Properties

Latent Heat of Fusion, J/g 350
230
Maximum Temperature: Mechanical, °C 120
230
Melting Completion (Liquidus), °C 620
1080
Melting Onset (Solidus), °C 550
1020
Specific Heat Capacity, J/kg-K 1000
440
Thermal Conductivity, W/m-K 62
38
Thermal Expansion, µm/m-K 26
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 69
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.7
8.3
Embodied Carbon, kg CO2/kg material 23
3.5
Embodied Energy, MJ/kg 160
56
Embodied Water, L/kg 990
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
86
Resilience: Unit (Modulus of Resilience), kJ/m3 190
400
Stiffness to Weight: Axial, points 15
8.0
Stiffness to Weight: Bending, points 71
20
Strength to Weight: Axial, points 37
24
Strength to Weight: Bending, points 49
22
Thermal Diffusivity, mm2/s 37
11
Thermal Shock Resistance, points 14
25

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
9.0 to 10
Copper (Cu), % 0 to 0.35
77.5 to 82.5
Iron (Fe), % 0
4.0 to 5.0
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 91.8 to 94.4
0
Manganese (Mn), % 0.13 to 0.6
0 to 1.5
Nickel (Ni), % 0 to 0.030
4.5 to 5.8
Silicon (Si), % 0 to 0.5
0 to 0.1
Tin (Sn), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.22
0 to 0.2
Residuals, % 0
0 to 0.8