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Z20301 Zinc vs. C68700 Brass

Z20301 zinc belongs to the zinc alloys classification, while C68700 brass belongs to the copper alloys. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is Z20301 zinc and the bottom bar is C68700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
110
Poisson's Ratio 0.25
0.32
Shear Modulus, GPa 35
41
Tensile Strength: Ultimate (UTS), MPa 160
390
Tensile Strength: Yield (Proof), MPa 130
140

Thermal Properties

Latent Heat of Fusion, J/g 110
190
Maximum Temperature: Mechanical, °C 90
160
Melting Completion (Liquidus), °C 410
970
Melting Onset (Solidus), °C 400
930
Specific Heat Capacity, J/kg-K 390
400
Thermal Conductivity, W/m-K 110
100
Thermal Expansion, µm/m-K 26
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
23
Electrical Conductivity: Equal Weight (Specific), % IACS 37
25

Otherwise Unclassified Properties

Base Metal Price, % relative 11
26
Density, g/cm3 6.6
8.3
Embodied Carbon, kg CO2/kg material 2.8
2.8
Embodied Energy, MJ/kg 53
46
Embodied Water, L/kg 340
340

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 96
90
Stiffness to Weight: Axial, points 7.4
7.3
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 6.7
13
Strength to Weight: Bending, points 9.9
14
Thermal Diffusivity, mm2/s 44
30
Thermal Shock Resistance, points 5.0
13

Alloy Composition

Aluminum (Al), % 0 to 0.0020
1.8 to 2.5
Arsenic (As), % 0
0.020 to 0.1
Cadmium (Cd), % 0 to 0.010
0
Copper (Cu), % 0 to 0.0050
76 to 79
Iron (Fe), % 0 to 0.010
0 to 0.060
Lead (Pb), % 0 to 0.1
0 to 0.070
Titanium (Ti), % 0 to 0.020
0
Zinc (Zn), % 99.853 to 100
17.8 to 22.2
Residuals, % 0
0 to 0.5