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K1A Magnesium vs. C31600 Bronze

K1A magnesium belongs to the magnesium alloys classification, while C31600 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 C31600 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 43
110
Elongation at Break, % 13
6.7 to 28
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 17
42
Shear Strength, MPa 55
170 to 270
Tensile Strength: Ultimate (UTS), MPa 180
270 to 460
Tensile Strength: Yield (Proof), MPa 51
80 to 390

Thermal Properties

Latent Heat of Fusion, J/g 350
200
Maximum Temperature: Mechanical, °C 120
180
Melting Completion (Liquidus), °C 650
1040
Melting Onset (Solidus), °C 650
1010
Specific Heat Capacity, J/kg-K 1000
380
Thermal Conductivity, W/m-K 120
140
Thermal Expansion, µm/m-K 27
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
32
Electrical Conductivity: Equal Weight (Specific), % IACS 170
33

Otherwise Unclassified Properties

Base Metal Price, % relative 13
29
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
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 17
30 to 58
Resilience: Unit (Modulus of Resilience), kJ/m3 30
28 to 690
Stiffness to Weight: Axial, points 15
7.1
Stiffness to Weight: Bending, points 73
18
Strength to Weight: Axial, points 31
8.5 to 15
Strength to Weight: Bending, points 43
11 to 15
Thermal Diffusivity, mm2/s 75
42
Thermal Shock Resistance, points 11
9.4 to 16

Alloy Composition


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Copper (Cu), % 0
87.5 to 90.5
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0
1.3 to 2.5
Magnesium (Mg), % 98.7 to 99.6
0
Nickel (Ni), % 0
0.7 to 1.2
Phosphorus (P), % 0
0.040 to 0.1
Zinc (Zn), % 0
5.2 to 10.5
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0 to 0.4