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Commercially Pure Zinc vs. C38000 Brass

Commercially pure zinc belongs to the zinc alloys classification, while C38000 brass belongs to the copper alloys. They have a modest 40% 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 (3, in this case) are not shown.

For each property being compared, the top bar is commercially pure zinc and the bottom bar is C38000 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
100
Elongation at Break, % 38
17
Poisson's Ratio 0.25
0.31
Shear Modulus, GPa 35
39
Tensile Strength: Ultimate (UTS), MPa 97
380
Tensile Strength: Yield (Proof), MPa 79
120

Thermal Properties

Latent Heat of Fusion, J/g 110
170
Maximum Temperature: Mechanical, °C 90
110
Melting Completion (Liquidus), °C 410
800
Melting Onset (Solidus), °C 400
760
Specific Heat Capacity, J/kg-K 390
380
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 26
21

Otherwise Unclassified Properties

Base Metal Price, % relative 11
22
Density, g/cm3 6.6
8.0
Embodied Carbon, kg CO2/kg material 2.8
2.7
Embodied Energy, MJ/kg 53
46
Embodied Water, L/kg 340
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
50
Resilience: Unit (Modulus of Resilience), kJ/m3 36
74
Stiffness to Weight: Axial, points 7.4
7.1
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 4.1
13
Strength to Weight: Bending, points 7.1
14
Thermal Diffusivity, mm2/s 44
37
Thermal Shock Resistance, points 3.0
13

Alloy Composition

Aluminum (Al), % 0 to 0.010
0 to 0.5
Cadmium (Cd), % 0 to 0.010
0
Copper (Cu), % 0 to 0.080
55 to 60
Iron (Fe), % 0 to 0.020
0 to 0.35
Lead (Pb), % 0 to 0.030
1.5 to 2.5
Tin (Sn), % 0 to 0.0030
0 to 0.3
Titanium (Ti), % 0 to 0.020
0
Zinc (Zn), % 99.827 to 100
35.9 to 43.5
Residuals, % 0
0 to 0.5