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Zamak 2 vs. CC765S Brass

Zamak 2 belongs to the zinc alloys classification, while CC765S 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 29 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 2 and the bottom bar is CC765S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
130
Elastic (Young's, Tensile) Modulus, GPa 87
110
Elongation at Break, % 6.0
21
Poisson's Ratio 0.26
0.31
Shear Modulus, GPa 33
42
Tensile Strength: Ultimate (UTS), MPa 360
540
Tensile Strength: Yield (Proof), MPa 270
220

Thermal Properties

Latent Heat of Fusion, J/g 130
180
Maximum Temperature: Mechanical, °C 95
140
Melting Completion (Liquidus), °C 390
860
Melting Onset (Solidus), °C 380
820
Specific Heat Capacity, J/kg-K 410
400
Thermal Conductivity, W/m-K 110
91
Thermal Expansion, µm/m-K 28
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
30
Electrical Conductivity: Equal Weight (Specific), % IACS 35
34

Otherwise Unclassified Properties

Base Metal Price, % relative 12
24
Density, g/cm3 6.5
8.0
Embodied Carbon, kg CO2/kg material 3.0
3.0
Embodied Energy, MJ/kg 57
51
Embodied Water, L/kg 380
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
90
Resilience: Unit (Modulus of Resilience), kJ/m3 420
220
Stiffness to Weight: Axial, points 7.5
7.6
Stiffness to Weight: Bending, points 23
20
Strength to Weight: Axial, points 15
19
Strength to Weight: Bending, points 17
18
Thermal Diffusivity, mm2/s 41
28
Thermal Shock Resistance, points 11
17

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0.5 to 2.5
Antimony (Sb), % 0
0 to 0.080
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 2.5 to 3.3
51 to 65
Iron (Fe), % 0 to 0.1
0.5 to 2.0
Lead (Pb), % 0 to 0.0050
0 to 0.5
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0.3 to 3.0
Nickel (Ni), % 0 to 0.020
0 to 6.0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0 to 0.030
0 to 0.1
Tin (Sn), % 0 to 0.0030
0 to 1.0
Zinc (Zn), % 92.2 to 94
19.8 to 47.7