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C91700 Bronze vs. Z21721 Zinc

C91700 bronze belongs to the copper alloys classification, while Z21721 zinc belongs to the zinc alloys. There are 28 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C91700 bronze and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
87
Elongation at Break, % 13
40
Poisson's Ratio 0.34
0.25
Shear Modulus, GPa 41
35
Tensile Strength: Ultimate (UTS), MPa 330
150
Tensile Strength: Yield (Proof), MPa 170
120

Thermal Properties

Latent Heat of Fusion, J/g 190
110
Maximum Temperature: Mechanical, °C 170
90
Melting Completion (Liquidus), °C 1020
410
Melting Onset (Solidus), °C 850
390
Specific Heat Capacity, J/kg-K 370
390
Thermal Conductivity, W/m-K 71
110
Thermal Expansion, µm/m-K 18
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
27
Electrical Conductivity: Equal Weight (Specific), % IACS 10
37

Otherwise Unclassified Properties

Base Metal Price, % relative 36
11
Density, g/cm3 8.7
6.6
Embodied Carbon, kg CO2/kg material 3.9
2.8
Embodied Energy, MJ/kg 63
53
Embodied Water, L/kg 400
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35
57
Resilience: Unit (Modulus of Resilience), kJ/m3 140
88
Stiffness to Weight: Axial, points 6.9
7.3
Stiffness to Weight: Bending, points 18
22
Strength to Weight: Axial, points 11
6.4
Strength to Weight: Bending, points 12
9.6
Thermal Diffusivity, mm2/s 22
44
Thermal Shock Resistance, points 12
4.8

Alloy Composition

Aluminum (Al), % 0 to 0.0050
0 to 0.0020
Antimony (Sb), % 0 to 0.2
0
Cadmium (Cd), % 0
0 to 0.070
Copper (Cu), % 84.2 to 87.5
0 to 0.0050
Iron (Fe), % 0 to 0.2
0 to 0.010
Lead (Pb), % 0 to 0.25
0 to 1.0
Nickel (Ni), % 1.2 to 2.0
0
Phosphorus (P), % 0 to 0.3
0
Silicon (Si), % 0 to 0.0050
0
Sulfur (S), % 0 to 0.050
0
Tin (Sn), % 11.3 to 12.5
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.25
98.9 to 100