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C67600 Bronze vs. ZK61A Magnesium

C67600 bronze belongs to the copper alloys classification, while ZK61A magnesium belongs to the magnesium 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 C67600 bronze and the bottom bar is ZK61A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
46
Elongation at Break, % 13 to 33
5.8 to 7.1
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 40
18
Shear Strength, MPa 270 to 350
170 to 180
Tensile Strength: Ultimate (UTS), MPa 430 to 570
290 to 310
Tensile Strength: Yield (Proof), MPa 170 to 380
180 to 200

Thermal Properties

Latent Heat of Fusion, J/g 170
330
Maximum Temperature: Mechanical, °C 120
120
Melting Completion (Liquidus), °C 890
640
Melting Onset (Solidus), °C 870
530
Specific Heat Capacity, J/kg-K 380
960
Thermal Conductivity, W/m-K 110
120
Thermal Expansion, µm/m-K 21
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
29
Electrical Conductivity: Equal Weight (Specific), % IACS 27
130

Otherwise Unclassified Properties

Base Metal Price, % relative 23
13
Density, g/cm3 8.0
1.9
Embodied Carbon, kg CO2/kg material 2.8
23
Embodied Energy, MJ/kg 47
160
Embodied Water, L/kg 330
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63 to 130
15 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 680
370 to 420
Stiffness to Weight: Axial, points 7.2
13
Stiffness to Weight: Bending, points 20
62
Strength to Weight: Axial, points 15 to 20
42 to 45
Strength to Weight: Bending, points 16 to 19
50 to 53
Thermal Diffusivity, mm2/s 35
65
Thermal Shock Resistance, points 14 to 19
17 to 18

Alloy Composition

Copper (Cu), % 57 to 60
0 to 0.1
Iron (Fe), % 0.4 to 1.3
0
Lead (Pb), % 0.5 to 1.0
0
Magnesium (Mg), % 0
92.1 to 93.9
Manganese (Mn), % 0.050 to 0.5
0
Nickel (Ni), % 0
0 to 0.010
Tin (Sn), % 0.5 to 1.5
0
Zinc (Zn), % 35.2 to 41.6
5.5 to 6.5
Zirconium (Zr), % 0
0.6 to 1.0
Residuals, % 0
0 to 0.3