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C95700 Bronze vs. ZE41A Magnesium

C95700 bronze belongs to the copper alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, 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 C95700 bronze and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
45
Elongation at Break, % 23
3.3
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 47
18
Tensile Strength: Ultimate (UTS), MPa 680
210
Tensile Strength: Yield (Proof), MPa 310
140

Thermal Properties

Latent Heat of Fusion, J/g 230
330
Maximum Temperature: Mechanical, °C 220
150
Melting Completion (Liquidus), °C 990
640
Melting Onset (Solidus), °C 950
540
Specific Heat Capacity, J/kg-K 440
970
Thermal Conductivity, W/m-K 12
110
Thermal Expansion, µm/m-K 18
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.0
27
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
130

Otherwise Unclassified Properties

Base Metal Price, % relative 26
18
Density, g/cm3 8.2
1.9
Embodied Carbon, kg CO2/kg material 3.3
24
Embodied Energy, MJ/kg 54
170
Embodied Water, L/kg 360
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 390
220
Stiffness to Weight: Axial, points 8.5
13
Stiffness to Weight: Bending, points 20
63
Strength to Weight: Axial, points 23
31
Strength to Weight: Bending, points 21
41
Thermal Diffusivity, mm2/s 3.3
59
Thermal Shock Resistance, points 21
12

Alloy Composition

Aluminum (Al), % 7.0 to 8.5
0
Copper (Cu), % 71 to 78.5
0 to 0.1
Iron (Fe), % 2.0 to 4.0
0
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 11 to 14
0 to 0.15
Nickel (Ni), % 1.5 to 3.0
0 to 0.010
Silicon (Si), % 0 to 0.1
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3