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C90700 Bronze vs. ZE63A Magnesium

C90700 bronze belongs to the copper alloys classification, while ZE63A magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 C90700 bronze and the bottom bar is ZE63A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 90
73
Elastic (Young's, Tensile) Modulus, GPa 110
46
Elongation at Break, % 12
7.7
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 40
17
Tensile Strength: Ultimate (UTS), MPa 330
300
Tensile Strength: Yield (Proof), MPa 180
190

Thermal Properties

Latent Heat of Fusion, J/g 190
330
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 1000
510
Melting Onset (Solidus), °C 830
390
Specific Heat Capacity, J/kg-K 370
950
Thermal Conductivity, W/m-K 71
110
Thermal Expansion, µm/m-K 18
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
31
Electrical Conductivity: Equal Weight (Specific), % IACS 10
140

Otherwise Unclassified Properties

Base Metal Price, % relative 35
22
Density, g/cm3 8.7
2.0
Embodied Carbon, kg CO2/kg material 3.7
24
Embodied Energy, MJ/kg 60
180
Embodied Water, L/kg 390
920

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
20
Resilience: Unit (Modulus of Resilience), kJ/m3 150
400
Stiffness to Weight: Axial, points 6.9
12
Stiffness to Weight: Bending, points 18
58
Strength to Weight: Axial, points 10
40
Strength to Weight: Bending, points 12
48
Thermal Diffusivity, mm2/s 22
57
Thermal Shock Resistance, points 12
17

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0
Antimony (Sb), % 0 to 0.2
0
Copper (Cu), % 88 to 90
0 to 0.1
Iron (Fe), % 0 to 0.15
0
Lead (Pb), % 0 to 0.5
0
Magnesium (Mg), % 0
89.6 to 92
Nickel (Ni), % 0 to 0.5
0 to 0.010
Phosphorus (P), % 0 to 1.5
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 10 to 12
0
Unspecified Rare Earths, % 0
2.1 to 3.0
Zinc (Zn), % 0 to 0.5
5.5 to 6.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3