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CR025A Copper vs. Zamak 2

CR025A copper belongs to the copper alloys classification, while Zamak 2 belongs to the zinc alloys. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is CR025A copper and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
87
Elongation at Break, % 15
6.0
Poisson's Ratio 0.34
0.26
Shear Modulus, GPa 43
33
Tensile Strength: Ultimate (UTS), MPa 230
360
Tensile Strength: Yield (Proof), MPa 140
270

Thermal Properties

Latent Heat of Fusion, J/g 210
130
Maximum Temperature: Mechanical, °C 200
95
Melting Completion (Liquidus), °C 1090
390
Melting Onset (Solidus), °C 1040
380
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 370
110
Thermal Expansion, µm/m-K 17
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 99
25
Electrical Conductivity: Equal Weight (Specific), % IACS 99
35

Otherwise Unclassified Properties

Base Metal Price, % relative 31
12
Density, g/cm3 9.0
6.5
Embodied Carbon, kg CO2/kg material 2.6
3.0
Embodied Energy, MJ/kg 41
57
Embodied Water, L/kg 320
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 31
20
Resilience: Unit (Modulus of Resilience), kJ/m3 83
420
Stiffness to Weight: Axial, points 7.2
7.5
Stiffness to Weight: Bending, points 18
23
Strength to Weight: Axial, points 7.1
15
Strength to Weight: Bending, points 9.3
17
Thermal Diffusivity, mm2/s 110
41
Thermal Shock Resistance, points 8.1
11

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Bismuth (Bi), % 0 to 0.00050
0
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 99.9 to 99.96
2.5 to 3.3
Iron (Fe), % 0
0 to 0.1
Lead (Pb), % 0 to 0.0050
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Nickel (Ni), % 0
0 to 0.020
Phosphorus (P), % 0.040 to 0.060
0
Silicon (Si), % 0
0 to 0.030
Silver (Ag), % 0 to 0.015
0
Tin (Sn), % 0
0 to 0.0030
Zinc (Zn), % 0
92.2 to 94