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Zamak 5 vs. C99700 Brass

Zamak 5 belongs to the zinc alloys classification, while C99700 brass belongs to the copper alloys. They have a modest 25% 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 (9, in this case) are not shown.

For each property being compared, the top bar is Zamak 5 and the bottom bar is C99700 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 87
120
Elongation at Break, % 6.3
25
Poisson's Ratio 0.25
0.32
Shear Modulus, GPa 33
46
Tensile Strength: Ultimate (UTS), MPa 330
380
Tensile Strength: Yield (Proof), MPa 240
170

Thermal Properties

Latent Heat of Fusion, J/g 120
200
Maximum Temperature: Mechanical, °C 95
160
Melting Completion (Liquidus), °C 390
900
Melting Onset (Solidus), °C 380
880
Specific Heat Capacity, J/kg-K 410
410
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 37
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 6.4
8.1
Embodied Carbon, kg CO2/kg material 3.0
3.3
Embodied Energy, MJ/kg 57
53
Embodied Water, L/kg 380
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
78
Resilience: Unit (Modulus of Resilience), kJ/m3 330
120
Stiffness to Weight: Axial, points 7.5
8.3
Stiffness to Weight: Bending, points 23
20
Strength to Weight: Axial, points 14
13
Strength to Weight: Bending, points 16
14
Thermal Shock Resistance, points 9.9
11

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0.5 to 3.0
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0.7 to 1.3
54 to 65.5
Iron (Fe), % 0 to 0.1
0 to 1.0
Lead (Pb), % 0 to 0.0050
0 to 2.0
Magnesium (Mg), % 0.025 to 0.080
0
Manganese (Mn), % 0
11 to 15
Nickel (Ni), % 0 to 0.020
4.0 to 6.0
Silicon (Si), % 0 to 0.030
0
Tin (Sn), % 0 to 0.0030
0 to 1.0
Zinc (Zn), % 94.3 to 95.7
19 to 25
Residuals, % 0
0 to 0.3