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Zamak 3 vs. CC751S Brass

Zamak 3 belongs to the zinc alloys classification, while CC751S brass belongs to the copper alloys. They have a modest 32% 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 (7, in this case) are not shown.

For each property being compared, the top bar is Zamak 3 and the bottom bar is CC751S brass.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 83
130
Elastic (Young's, Tensile) Modulus, GPa 86
110
Elongation at Break, % 11
5.6
Poisson's Ratio 0.25
0.31
Shear Modulus, GPa 33
40
Tensile Strength: Ultimate (UTS), MPa 280
450
Tensile Strength: Yield (Proof), MPa 210
320

Thermal Properties

Latent Heat of Fusion, J/g 120
190
Maximum Temperature: Mechanical, °C 95
130
Melting Completion (Liquidus), °C 390
850
Melting Onset (Solidus), °C 380
810
Specific Heat Capacity, J/kg-K 410
390
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
25
Electrical Conductivity: Equal Weight (Specific), % IACS 38
28

Otherwise Unclassified Properties

Base Metal Price, % relative 11
24
Density, g/cm3 6.4
8.1
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 28
23
Resilience: Unit (Modulus of Resilience), kJ/m3 260
480
Stiffness to Weight: Axial, points 7.5
7.2
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 12
15
Strength to Weight: Bending, points 15
16
Thermal Diffusivity, mm2/s 43
35
Thermal Shock Resistance, points 8.6
15

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0 to 0.1
Antimony (Sb), % 0
0 to 0.5
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0 to 0.25
62.7 to 66
Iron (Fe), % 0 to 0.1
0.25 to 0.5
Lead (Pb), % 0 to 0.0050
0.8 to 2.2
Magnesium (Mg), % 0.020 to 0.060
0
Manganese (Mn), % 0
0 to 0.15
Nickel (Ni), % 0 to 0.020
0 to 0.8
Silicon (Si), % 0 to 0.030
0.65 to 1.1
Tin (Sn), % 0 to 0.0030
0 to 0.8
Zinc (Zn), % 95.3 to 96.5
27.9 to 35.6