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Zamak 7 vs. CR012A Copper

Zamak 7 belongs to the zinc alloys classification, while CR012A copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is Zamak 7 and the bottom bar is CR012A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
120
Elongation at Break, % 13
15
Poisson's Ratio 0.25
0.34
Shear Modulus, GPa 33
43
Tensile Strength: Ultimate (UTS), MPa 280
220
Tensile Strength: Yield (Proof), MPa 250
130

Thermal Properties

Latent Heat of Fusion, J/g 120
210
Maximum Temperature: Mechanical, °C 95
200
Melting Completion (Liquidus), °C 390
1090
Melting Onset (Solidus), °C 380
1040
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 110
390
Thermal Expansion, µm/m-K 27
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
100
Electrical Conductivity: Equal Weight (Specific), % IACS 38
100

Otherwise Unclassified Properties

Base Metal Price, % relative 11
33
Density, g/cm3 6.4
9.0
Embodied Carbon, kg CO2/kg material 3.0
2.7
Embodied Energy, MJ/kg 57
42
Embodied Water, L/kg 380
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
29
Resilience: Unit (Modulus of Resilience), kJ/m3 370
76
Stiffness to Weight: Axial, points 7.5
7.2
Stiffness to Weight: Bending, points 23
18
Strength to Weight: Axial, points 12
6.8
Strength to Weight: Bending, points 15
9.0
Thermal Diffusivity, mm2/s 43
110
Thermal Shock Resistance, points 8.6
7.8

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0
Bismuth (Bi), % 0
0 to 0.00050
Cadmium (Cd), % 0 to 0.0020
0
Copper (Cu), % 0 to 0.25
99.85 to 99.94
Iron (Fe), % 0 to 0.075
0
Lead (Pb), % 0 to 0.0030
0
Magnesium (Mg), % 0.0050 to 0.020
0
Nickel (Ni), % 0.0050 to 0.020
0
Oxygen (O), % 0
0 to 0.040
Silver (Ag), % 0
0.060 to 0.080
Tin (Sn), % 0 to 0.0010
0
Zinc (Zn), % 95.3 to 96.5
0