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AS41A Magnesium vs. CC497K Bronze

AS41A magnesium belongs to the magnesium alloys classification, while CC497K 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 AS41A magnesium and the bottom bar is CC497K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
93
Elongation at Break, % 11
6.7
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 17
34
Tensile Strength: Ultimate (UTS), MPa 230
190
Tensile Strength: Yield (Proof), MPa 140
91

Thermal Properties

Latent Heat of Fusion, J/g 370
160
Maximum Temperature: Mechanical, °C 110
130
Melting Completion (Liquidus), °C 620
870
Melting Onset (Solidus), °C 570
800
Specific Heat Capacity, J/kg-K 1000
330
Thermal Conductivity, W/m-K 68
53
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 92
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 12
29
Density, g/cm3 1.6
9.3
Embodied Carbon, kg CO2/kg material 23
3.0
Embodied Energy, MJ/kg 160
48
Embodied Water, L/kg 980
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
10
Resilience: Unit (Modulus of Resilience), kJ/m3 220
45
Stiffness to Weight: Axial, points 15
5.5
Stiffness to Weight: Bending, points 72
16
Strength to Weight: Axial, points 38
5.6
Strength to Weight: Bending, points 50
7.8
Thermal Diffusivity, mm2/s 41
17
Thermal Shock Resistance, points 14
7.2

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0 to 0.010
Antimony (Sb), % 0
0 to 0.75
Copper (Cu), % 0 to 0.060
67.5 to 77.5
Iron (Fe), % 0
0 to 0.25
Lead (Pb), % 0
18 to 23
Magnesium (Mg), % 92.8 to 95.8
0
Manganese (Mn), % 0.2 to 0.5
0 to 0.2
Nickel (Ni), % 0 to 0.030
0.5 to 2.5
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0.5 to 1.5
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Zinc (Zn), % 0 to 0.12
0 to 2.0