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K1A Magnesium vs. C95520 Bronze

K1A magnesium belongs to the magnesium alloys classification, while C95520 bronze belongs to the copper 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 K1A magnesium and the bottom bar is C95520 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 43
120
Elongation at Break, % 13
2.6
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
44
Tensile Strength: Ultimate (UTS), MPa 180
970
Tensile Strength: Yield (Proof), MPa 51
530

Thermal Properties

Latent Heat of Fusion, J/g 350
240
Maximum Temperature: Mechanical, °C 120
240
Melting Completion (Liquidus), °C 650
1070
Melting Onset (Solidus), °C 650
1020
Specific Heat Capacity, J/kg-K 1000
450
Thermal Conductivity, W/m-K 120
40
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
11
Electrical Conductivity: Equal Weight (Specific), % IACS 170
12

Otherwise Unclassified Properties

Base Metal Price, % relative 13
29
Density, g/cm3 1.6
8.2
Embodied Carbon, kg CO2/kg material 24
3.6
Embodied Energy, MJ/kg 170
58
Embodied Water, L/kg 970
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
21
Resilience: Unit (Modulus of Resilience), kJ/m3 30
1210
Stiffness to Weight: Axial, points 15
8.0
Stiffness to Weight: Bending, points 73
20
Strength to Weight: Axial, points 31
33
Strength to Weight: Bending, points 43
27
Thermal Diffusivity, mm2/s 75
11
Thermal Shock Resistance, points 11
33

Alloy Composition


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Aluminum (Al), % 0
10.5 to 11.5
Chromium (Cr), % 0
0 to 0.050
Cobalt (Co), % 0
0 to 0.2
Copper (Cu), % 0
74.5 to 81.3
Iron (Fe), % 0
4.0 to 5.5
Lead (Pb), % 0
0 to 0.030
Magnesium (Mg), % 98.7 to 99.6
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
4.2 to 6.0
Silicon (Si), % 0
0 to 0.15
Tin (Sn), % 0
0 to 0.25
Zinc (Zn), % 0
0 to 0.3
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.5