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Zamak 3 vs. C85200 Brass

Zamak 3 belongs to the zinc alloys classification, while C85200 brass belongs to the copper alloys. They have a modest 24% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 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 Zamak 3 and the bottom bar is C85200 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
110
Elongation at Break, % 11
28
Poisson's Ratio 0.25
0.32
Shear Modulus, GPa 33
40
Tensile Strength: Ultimate (UTS), MPa 280
270
Tensile Strength: Yield (Proof), MPa 210
95

Thermal Properties

Latent Heat of Fusion, J/g 120
180
Maximum Temperature: Mechanical, °C 95
140
Melting Completion (Liquidus), °C 390
940
Melting Onset (Solidus), °C 380
930
Specific Heat Capacity, J/kg-K 410
380
Thermal Conductivity, W/m-K 110
84
Thermal Expansion, µm/m-K 27
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
18
Electrical Conductivity: Equal Weight (Specific), % IACS 38
19

Otherwise Unclassified Properties

Base Metal Price, % relative 11
26
Density, g/cm3 6.4
8.4
Embodied Carbon, kg CO2/kg material 3.0
2.8
Embodied Energy, MJ/kg 57
46
Embodied Water, L/kg 380
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28
59
Resilience: Unit (Modulus of Resilience), kJ/m3 260
42
Stiffness to Weight: Axial, points 7.5
7.0
Stiffness to Weight: Bending, points 23
19
Strength to Weight: Axial, points 12
8.9
Strength to Weight: Bending, points 15
11
Thermal Diffusivity, mm2/s 43
27
Thermal Shock Resistance, points 8.6
9.3

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Cadmium (Cd), % 0 to 0.0050
0
Copper (Cu), % 0 to 0.25
70 to 74
Iron (Fe), % 0 to 0.1
0 to 0.6
Lead (Pb), % 0 to 0.0050
1.5 to 3.8
Magnesium (Mg), % 0.020 to 0.060
0
Nickel (Ni), % 0 to 0.020
0 to 1.0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0 to 0.030
0 to 0.050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0 to 0.0030
0.7 to 2.0
Zinc (Zn), % 95.3 to 96.5
20 to 27
Residuals, % 0
0 to 0.9