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C86700 Bronze vs. Commercially Pure Zinc

C86700 bronze belongs to the copper alloys classification, while commercially pure zinc belongs to the zinc alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much.

For each property being compared, the top bar is C86700 bronze and the bottom bar is commercially pure zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
87
Elongation at Break, % 17
38
Poisson's Ratio 0.31
0.25
Shear Modulus, GPa 41
35
Tensile Strength: Ultimate (UTS), MPa 630
97
Tensile Strength: Yield (Proof), MPa 250
79

Thermal Properties

Latent Heat of Fusion, J/g 180
110
Maximum Temperature: Mechanical, °C 130
90
Melting Completion (Liquidus), °C 880
410
Melting Onset (Solidus), °C 860
400
Specific Heat Capacity, J/kg-K 400
390
Thermal Conductivity, W/m-K 89
110
Thermal Expansion, µm/m-K 20
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
27
Electrical Conductivity: Equal Weight (Specific), % IACS 19
37

Otherwise Unclassified Properties

Base Metal Price, % relative 23
11
Density, g/cm3 7.9
6.6
Embodied Carbon, kg CO2/kg material 2.9
2.8
Embodied Energy, MJ/kg 49
53
Embodied Water, L/kg 340
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 86
34
Resilience: Unit (Modulus of Resilience), kJ/m3 290
36
Stiffness to Weight: Axial, points 7.5
7.4
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 22
4.1
Strength to Weight: Bending, points 21
7.1
Thermal Diffusivity, mm2/s 28
44
Thermal Shock Resistance, points 21
3.0

Alloy Composition

Aluminum (Al), % 1.0 to 3.0
0 to 0.010
Cadmium (Cd), % 0
0 to 0.010
Copper (Cu), % 55 to 60
0 to 0.080
Iron (Fe), % 1.0 to 3.0
0 to 0.020
Lead (Pb), % 0.5 to 1.5
0 to 0.030
Manganese (Mn), % 1.0 to 3.5
0
Nickel (Ni), % 0 to 1.0
0
Tin (Sn), % 0 to 1.5
0 to 0.0030
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 30 to 38
99.827 to 100
Residuals, % 0 to 1.0
0