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CC763S Brass vs. Zamak 7

CC763S brass belongs to the copper alloys classification, while Zamak 7 belongs to the zinc alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 27 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 CC763S brass and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 130
80
Elastic (Young's, Tensile) Modulus, GPa 110
86
Elongation at Break, % 7.3
13
Poisson's Ratio 0.31
0.25
Shear Modulus, GPa 41
33
Tensile Strength: Ultimate (UTS), MPa 490
280
Tensile Strength: Yield (Proof), MPa 270
250

Thermal Properties

Latent Heat of Fusion, J/g 190
120
Maximum Temperature: Mechanical, °C 140
95
Melting Completion (Liquidus), °C 870
390
Melting Onset (Solidus), °C 830
380
Specific Heat Capacity, J/kg-K 400
410
Thermal Expansion, µm/m-K 20
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
27
Electrical Conductivity: Equal Weight (Specific), % IACS 32
38

Otherwise Unclassified Properties

Base Metal Price, % relative 24
11
Density, g/cm3 8.0
6.4
Embodied Carbon, kg CO2/kg material 2.9
3.0
Embodied Energy, MJ/kg 49
57
Embodied Water, L/kg 330
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30
36
Resilience: Unit (Modulus of Resilience), kJ/m3 340
370
Stiffness to Weight: Axial, points 7.5
7.5
Stiffness to Weight: Bending, points 20
23
Strength to Weight: Axial, points 17
12
Strength to Weight: Bending, points 17
15
Thermal Shock Resistance, points 16
8.6

Alloy Composition

Aluminum (Al), % 1.0 to 2.5
3.5 to 4.3
Antimony (Sb), % 0 to 0.080
0
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 56.5 to 67
0 to 0.25
Iron (Fe), % 0.5 to 2.0
0 to 0.075
Lead (Pb), % 0 to 1.5
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Manganese (Mn), % 1.0 to 3.5
0
Nickel (Ni), % 0 to 2.5
0.0050 to 0.020
Silicon (Si), % 0 to 1.0
0
Tin (Sn), % 0 to 1.0
0 to 0.0010
Zinc (Zn), % 18.9 to 41
95.3 to 96.5