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K1A Magnesium vs. C40500 Penny Bronze

K1A magnesium belongs to the magnesium alloys classification, while C40500 penny 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 K1A magnesium and the bottom bar is C40500 penny bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 43
110
Elongation at Break, % 13
3.0 to 49
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 17
43
Shear Strength, MPa 55
210 to 310
Tensile Strength: Ultimate (UTS), MPa 180
270 to 540
Tensile Strength: Yield (Proof), MPa 51
79 to 520

Thermal Properties

Latent Heat of Fusion, J/g 350
200
Maximum Temperature: Mechanical, °C 120
190
Melting Completion (Liquidus), °C 650
1060
Melting Onset (Solidus), °C 650
1020
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 120
160
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
41
Electrical Conductivity: Equal Weight (Specific), % IACS 170
42

Otherwise Unclassified Properties

Base Metal Price, % relative 13
30
Density, g/cm3 1.6
8.8
Embodied Carbon, kg CO2/kg material 24
2.7
Embodied Energy, MJ/kg 170
43
Embodied Water, L/kg 970
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
16 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 30
28 to 1200
Stiffness to Weight: Axial, points 15
7.2
Stiffness to Weight: Bending, points 73
18
Strength to Weight: Axial, points 31
8.5 to 17
Strength to Weight: Bending, points 43
10 to 17
Thermal Diffusivity, mm2/s 75
48
Thermal Shock Resistance, points 11
9.5 to 19

Alloy Composition


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Copper (Cu), % 0
94 to 96
Iron (Fe), % 0
0 to 0.050
Lead (Pb), % 0
0 to 0.050
Magnesium (Mg), % 98.7 to 99.6
0
Tin (Sn), % 0
0.7 to 1.3
Zinc (Zn), % 0
2.1 to 5.3
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.5