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CC755S Brass vs. Zamak 2

CC755S brass belongs to the copper alloys classification, while Zamak 2 belongs to the zinc alloys. They have 41% of their average alloy composition in common. 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 CC755S brass and the bottom bar is Zamak 2.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 110
100
Elastic (Young's, Tensile) Modulus, GPa 100
87
Elongation at Break, % 9.5
6.0
Poisson's Ratio 0.31
0.26
Shear Modulus, GPa 40
33
Tensile Strength: Ultimate (UTS), MPa 390
360
Tensile Strength: Yield (Proof), MPa 250
270

Thermal Properties

Latent Heat of Fusion, J/g 170
130
Maximum Temperature: Mechanical, °C 120
95
Melting Completion (Liquidus), °C 820
390
Melting Onset (Solidus), °C 780
380
Specific Heat Capacity, J/kg-K 390
410
Thermal Conductivity, W/m-K 120
110
Thermal Expansion, µm/m-K 21
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
25
Electrical Conductivity: Equal Weight (Specific), % IACS 30
35

Otherwise Unclassified Properties

Base Metal Price, % relative 23
12
Density, g/cm3 8.1
6.5
Embodied Carbon, kg CO2/kg material 2.7
3.0
Embodied Energy, MJ/kg 46
57
Embodied Water, L/kg 330
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 33
20
Resilience: Unit (Modulus of Resilience), kJ/m3 290
420
Stiffness to Weight: Axial, points 7.1
7.5
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 14
15
Strength to Weight: Bending, points 15
17
Thermal Diffusivity, mm2/s 38
41
Thermal Shock Resistance, points 13
11

Alloy Composition

Aluminum (Al), % 0.4 to 0.7
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Copper (Cu), % 59.5 to 61
2.5 to 3.3
Iron (Fe), % 0.050 to 0.2
0 to 0.1
Lead (Pb), % 1.2 to 1.7
0 to 0.0050
Magnesium (Mg), % 0
0.020 to 0.060
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0 to 0.2
0 to 0.020
Silicon (Si), % 0 to 0.050
0 to 0.030
Tin (Sn), % 0 to 0.3
0 to 0.0030
Zinc (Zn), % 35.8 to 38.9
92.2 to 94