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Commercially Pure Zinc vs. C37700 Brass

Commercially pure zinc belongs to the zinc alloys classification, while C37700 brass belongs to the copper alloys. They have a modest 38% 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 (2, in this case) are not shown.

For each property being compared, the top bar is commercially pure zinc and the bottom bar is C37700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
100
Elongation at Break, % 38
40
Poisson's Ratio 0.25
0.31
Shear Modulus, GPa 35
39
Tensile Strength: Ultimate (UTS), MPa 97
400
Tensile Strength: Yield (Proof), MPa 79
160

Thermal Properties

Latent Heat of Fusion, J/g 110
170
Maximum Temperature: Mechanical, °C 90
120
Melting Completion (Liquidus), °C 410
890
Melting Onset (Solidus), °C 400
880
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 110
120
Thermal Expansion, µm/m-K 26
21

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 11
23
Density, g/cm3 6.6
8.1
Embodied Carbon, kg CO2/kg material 2.8
2.6
Embodied Energy, MJ/kg 53
45
Embodied Water, L/kg 340
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
130
Resilience: Unit (Modulus of Resilience), kJ/m3 36
120
Stiffness to Weight: Axial, points 7.4
7.1
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 4.1
14
Strength to Weight: Bending, points 7.1
15
Thermal Diffusivity, mm2/s 44
39
Thermal Shock Resistance, points 3.0
13

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Cadmium (Cd), % 0 to 0.010
0
Copper (Cu), % 0 to 0.080
58 to 61
Iron (Fe), % 0 to 0.020
0 to 0.3
Lead (Pb), % 0 to 0.030
1.5 to 2.5
Tin (Sn), % 0 to 0.0030
0
Titanium (Ti), % 0 to 0.020
0
Zinc (Zn), % 99.827 to 100
35.7 to 40.5
Residuals, % 0
0 to 0.5