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As-cast C95410 Bronze vs. AZ91C-F Magnesium

As-cast C95410 bronze belongs to the copper alloys classification, while AZ91C-F 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 as-cast C95410 bronze and the bottom bar is AZ91C-F magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
46
Elongation at Break, % 13
4.2
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
18
Tensile Strength: Ultimate (UTS), MPa 620
170
Tensile Strength: Yield (Proof), MPa 260
83

Thermal Properties

Latent Heat of Fusion, J/g 230
350
Maximum Temperature: Mechanical, °C 230
130
Melting Completion (Liquidus), °C 1040
600
Melting Onset (Solidus), °C 1030
470
Specific Heat Capacity, J/kg-K 440
990
Thermal Conductivity, W/m-K 59
73
Thermal Expansion, µm/m-K 18
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 13
12
Electrical Conductivity: Equal Weight (Specific), % IACS 14
60

Otherwise Unclassified Properties

Base Metal Price, % relative 28
12
Density, g/cm3 8.2
1.7
Embodied Carbon, kg CO2/kg material 3.3
22
Embodied Energy, MJ/kg 54
160
Embodied Water, L/kg 390
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 64
5.8
Resilience: Unit (Modulus of Resilience), kJ/m3 280
75
Stiffness to Weight: Axial, points 7.8
15
Stiffness to Weight: Bending, points 20
69
Strength to Weight: Axial, points 21
27
Strength to Weight: Bending, points 20
39
Thermal Diffusivity, mm2/s 16
43
Thermal Shock Resistance, points 22
9.9

Alloy Composition

Aluminum (Al), % 10 to 11.5
8.1 to 9.3
Copper (Cu), % 83 to 85.5
0 to 0.1
Iron (Fe), % 3.0 to 5.0
0
Magnesium (Mg), % 0
88.6 to 91.4
Manganese (Mn), % 0 to 0.5
0.13 to 0.35
Nickel (Ni), % 1.5 to 2.5
0 to 0.010
Silicon (Si), % 0
0 to 0.3
Zinc (Zn), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3