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AZ91A Magnesium vs. C60800 Bronze

AZ91A magnesium belongs to the magnesium alloys classification, while C60800 bronze belongs to the copper alloys. There are 29 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 AZ91A magnesium and the bottom bar is C60800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
110
Elongation at Break, % 5.0
55
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
46
Shear Strength, MPa 140
290
Tensile Strength: Ultimate (UTS), MPa 240
390
Tensile Strength: Yield (Proof), MPa 160
150

Thermal Properties

Latent Heat of Fusion, J/g 360
220
Maximum Temperature: Mechanical, °C 130
210
Melting Completion (Liquidus), °C 600
1060
Melting Onset (Solidus), °C 470
1050
Specific Heat Capacity, J/kg-K 990
410
Thermal Conductivity, W/m-K 73
80
Thermal Expansion, µm/m-K 26
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
17
Electrical Conductivity: Equal Weight (Specific), % IACS 52
18

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.7
8.6
Embodied Carbon, kg CO2/kg material 22
2.9
Embodied Energy, MJ/kg 160
48
Embodied Water, L/kg 990
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
170
Resilience: Unit (Modulus of Resilience), kJ/m3 280
94
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 69
19
Strength to Weight: Axial, points 38
13
Strength to Weight: Bending, points 49
14
Thermal Diffusivity, mm2/s 42
23
Thermal Shock Resistance, points 14
14

Alloy Composition


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Aluminum (Al), % 8.3 to 9.7
5.0 to 6.5
Arsenic (As), % 0
0.020 to 0.35
Copper (Cu), % 0 to 0.1
92.5 to 95
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 88.2 to 91.2
0
Manganese (Mn), % 0.13 to 0.5
0
Nickel (Ni), % 0 to 0.030
0
Silicon (Si), % 0 to 0.5
0
Zinc (Zn), % 0.35 to 1.0
0
Residuals, % 0
0 to 0.5