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Commercially Pure Zinc vs. CC765S Brass

Commercially pure zinc belongs to the zinc alloys classification, while CC765S brass belongs to the copper alloys. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. 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 commercially pure zinc and the bottom bar is CC765S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
110
Elongation at Break, % 38
21
Poisson's Ratio 0.25
0.31
Shear Modulus, GPa 35
42
Tensile Strength: Ultimate (UTS), MPa 97
540
Tensile Strength: Yield (Proof), MPa 79
220

Thermal Properties

Latent Heat of Fusion, J/g 110
180
Maximum Temperature: Mechanical, °C 90
140
Melting Completion (Liquidus), °C 410
860
Melting Onset (Solidus), °C 400
820
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 110
91
Thermal Expansion, µm/m-K 26
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
30
Electrical Conductivity: Equal Weight (Specific), % IACS 37
34

Otherwise Unclassified Properties

Base Metal Price, % relative 11
24
Density, g/cm3 6.6
8.0
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 53
51
Embodied Water, L/kg 340
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
90
Resilience: Unit (Modulus of Resilience), kJ/m3 36
220
Stiffness to Weight: Axial, points 7.4
7.6
Stiffness to Weight: Bending, points 23
20
Strength to Weight: Axial, points 4.1
19
Strength to Weight: Bending, points 7.1
18
Thermal Diffusivity, mm2/s 44
28
Thermal Shock Resistance, points 3.0
17

Alloy Composition

Aluminum (Al), % 0 to 0.010
0.5 to 2.5
Antimony (Sb), % 0
0 to 0.080
Cadmium (Cd), % 0 to 0.010
0
Copper (Cu), % 0 to 0.080
51 to 65
Iron (Fe), % 0 to 0.020
0.5 to 2.0
Lead (Pb), % 0 to 0.030
0 to 0.5
Manganese (Mn), % 0
0.3 to 3.0
Nickel (Ni), % 0
0 to 6.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.1
Tin (Sn), % 0 to 0.0030
0 to 1.0
Titanium (Ti), % 0 to 0.020
0
Zinc (Zn), % 99.827 to 100
19.8 to 47.7