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Zamak 2 vs. CC750S Brass

Zamak 2 belongs to the zinc alloys classification, while CC750S brass belongs to the copper alloys. They have a modest 34% 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 CC750S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 100
54
Elastic (Young's, Tensile) Modulus, GPa 87
110
Elongation at Break, % 6.0
13
Poisson's Ratio 0.26
0.31
Shear Modulus, GPa 33
40
Tensile Strength: Ultimate (UTS), MPa 360
200
Tensile Strength: Yield (Proof), MPa 270
80

Thermal Properties

Latent Heat of Fusion, J/g 130
170
Maximum Temperature: Mechanical, °C 95
130
Melting Completion (Liquidus), °C 390
860
Melting Onset (Solidus), °C 380
810
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 28
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
24
Electrical Conductivity: Equal Weight (Specific), % IACS 35
26

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 6.5
8.2
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 57
46
Embodied Water, L/kg 380
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
22
Resilience: Unit (Modulus of Resilience), kJ/m3 420
30
Stiffness to Weight: Axial, points 7.5
7.1
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 15
6.8
Strength to Weight: Bending, points 17
9.3
Thermal Diffusivity, mm2/s 41
35
Thermal Shock Resistance, points 11
6.7

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0 to 0.1
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 2.5 to 3.3
62 to 67
Iron (Fe), % 0 to 0.1
0 to 0.8
Lead (Pb), % 0 to 0.0050
1.0 to 3.0
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.020
0 to 1.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 0 to 0.030
0 to 0.050
Tin (Sn), % 0 to 0.0030
0 to 1.5
Zinc (Zn), % 92.2 to 94
26.3 to 36