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CC750S Brass vs. Zamak 3

CC750S brass belongs to the copper alloys classification, while Zamak 3 belongs to the zinc alloys. They have a modest 31% 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 CC750S brass and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 54
83
Elastic (Young's, Tensile) Modulus, GPa 110
86
Elongation at Break, % 13
11
Poisson's Ratio 0.31
0.25
Shear Modulus, GPa 40
33
Tensile Strength: Ultimate (UTS), MPa 200
280
Tensile Strength: Yield (Proof), MPa 80
210

Thermal Properties

Latent Heat of Fusion, J/g 170
120
Maximum Temperature: Mechanical, °C 130
95
Melting Completion (Liquidus), °C 860
390
Melting Onset (Solidus), °C 810
380
Specific Heat Capacity, J/kg-K 380
410
Thermal Conductivity, W/m-K 110
110
Thermal Expansion, µm/m-K 20
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
27
Electrical Conductivity: Equal Weight (Specific), % IACS 26
38

Otherwise Unclassified Properties

Base Metal Price, % relative 25
11
Density, g/cm3 8.2
6.4
Embodied Carbon, kg CO2/kg material 2.8
3.0
Embodied Energy, MJ/kg 46
57
Embodied Water, L/kg 330
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22
28
Resilience: Unit (Modulus of Resilience), kJ/m3 30
260
Stiffness to Weight: Axial, points 7.1
7.5
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 6.8
12
Strength to Weight: Bending, points 9.3
15
Thermal Diffusivity, mm2/s 35
43
Thermal Shock Resistance, points 6.7
8.6

Alloy Composition

Aluminum (Al), % 0 to 0.1
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 62 to 67
0 to 0.25
Iron (Fe), % 0 to 0.8
0 to 0.1
Lead (Pb), % 1.0 to 3.0
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Manganese (Mn), % 0 to 0.2
0
Nickel (Ni), % 0 to 1.0
0 to 0.020
Phosphorus (P), % 0 to 0.050
0
Silicon (Si), % 0 to 0.050
0 to 0.030
Tin (Sn), % 0 to 1.5
0 to 0.0030
Zinc (Zn), % 26.3 to 36
95.3 to 96.5