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AS41A Magnesium vs. CC495K Bronze

AS41A magnesium belongs to the magnesium alloys classification, while CC495K 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 CC495K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 11
7.0
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 17
37
Tensile Strength: Ultimate (UTS), MPa 230
240
Tensile Strength: Yield (Proof), MPa 140
120

Thermal Properties

Latent Heat of Fusion, J/g 370
180
Maximum Temperature: Mechanical, °C 110
140
Melting Completion (Liquidus), °C 620
930
Melting Onset (Solidus), °C 570
820
Specific Heat Capacity, J/kg-K 1000
350
Thermal Conductivity, W/m-K 68
48
Thermal Expansion, µm/m-K 26
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
10
Electrical Conductivity: Equal Weight (Specific), % IACS 92
10

Otherwise Unclassified Properties

Base Metal Price, % relative 12
33
Density, g/cm3 1.6
9.0
Embodied Carbon, kg CO2/kg material 23
3.6
Embodied Energy, MJ/kg 160
58
Embodied Water, L/kg 980
400

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
14
Resilience: Unit (Modulus of Resilience), kJ/m3 220
68
Stiffness to Weight: Axial, points 15
6.2
Stiffness to Weight: Bending, points 72
17
Strength to Weight: Axial, points 38
7.3
Strength to Weight: Bending, points 50
9.4
Thermal Diffusivity, mm2/s 41
15
Thermal Shock Resistance, points 14
8.8

Alloy Composition

Aluminum (Al), % 3.5 to 5.0
0 to 0.010
Antimony (Sb), % 0
0 to 0.5
Copper (Cu), % 0 to 0.060
76 to 82
Iron (Fe), % 0
0 to 0.25
Lead (Pb), % 0
8.0 to 11
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 to 2.0
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
9.0 to 11
Zinc (Zn), % 0 to 0.12
0 to 2.0