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CR019A Copper vs. Z21721 Zinc

CR019A copper belongs to the copper alloys classification, while Z21721 zinc belongs to the zinc alloys.

For each property being compared, the top bar is CR019A copper and the bottom bar is Z21721 zinc.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
87
Elongation at Break, % 15
40
Poisson's Ratio 0.34
0.25
Shear Modulus, GPa 43
35
Tensile Strength: Ultimate (UTS), MPa 220
150
Tensile Strength: Yield (Proof), MPa 130
120

Thermal Properties

Latent Heat of Fusion, J/g 210
110
Maximum Temperature: Mechanical, °C 200
90
Melting Completion (Liquidus), °C 1090
410
Melting Onset (Solidus), °C 1040
390
Specific Heat Capacity, J/kg-K 390
390
Thermal Conductivity, W/m-K 390
110
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
27
Electrical Conductivity: Equal Weight (Specific), % IACS 100
37

Otherwise Unclassified Properties

Base Metal Price, % relative 35
11
Density, g/cm3 9.0
6.6
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 42
53
Embodied Water, L/kg 390
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 29
57
Resilience: Unit (Modulus of Resilience), kJ/m3 76
88
Stiffness to Weight: Axial, points 7.2
7.3
Stiffness to Weight: Bending, points 18
22
Strength to Weight: Axial, points 6.8
6.4
Strength to Weight: Bending, points 9.0
9.6
Thermal Diffusivity, mm2/s 110
44
Thermal Shock Resistance, points 7.8
4.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.0020
Bismuth (Bi), % 0 to 0.00050
0
Cadmium (Cd), % 0
0 to 0.070
Copper (Cu), % 99.874 to 99.92
0 to 0.0050
Iron (Fe), % 0
0 to 0.010
Lead (Pb), % 0
0 to 1.0
Silver (Ag), % 0.080 to 0.12
0
Titanium (Ti), % 0
0 to 0.020
Zinc (Zn), % 0
98.9 to 100