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C44500 Brass vs. Zamak 7

C44500 brass belongs to the copper alloys classification, while Zamak 7 belongs to the zinc alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is C44500 brass and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
86
Poisson's Ratio 0.32
0.25
Shear Modulus, GPa 41
33
Tensile Strength: Ultimate (UTS), MPa 350
280
Tensile Strength: Yield (Proof), MPa 120
250

Thermal Properties

Latent Heat of Fusion, J/g 180
120
Maximum Temperature: Mechanical, °C 140
95
Melting Completion (Liquidus), °C 940
390
Melting Onset (Solidus), °C 900
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 25
27
Electrical Conductivity: Equal Weight (Specific), % IACS 27
38

Otherwise Unclassified Properties

Base Metal Price, % relative 26
11
Density, g/cm3 8.3
6.4
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: Unit (Modulus of Resilience), kJ/m3 65
370
Stiffness to Weight: Axial, points 7.2
7.5
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 12
12
Strength to Weight: Bending, points 13
15
Thermal Diffusivity, mm2/s 35
43
Thermal Shock Resistance, points 12
8.6

Alloy Composition

Aluminum (Al), % 0
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Copper (Cu), % 70 to 73
0 to 0.25
Iron (Fe), % 0 to 0.060
0 to 0.075
Lead (Pb), % 0 to 0.070
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Nickel (Ni), % 0
0.0050 to 0.020
Phosphorus (P), % 0.020 to 0.1
0
Tin (Sn), % 0.9 to 1.2
0 to 0.0010
Zinc (Zn), % 25.2 to 29.1
95.3 to 96.5
Residuals, % 0 to 0.4
0