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6261 Aluminum vs. Zamak 3

6261 aluminum belongs to the aluminum alloys classification, while Zamak 3 belongs to the zinc alloys. There are 30 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 6261 aluminum and the bottom bar is Zamak 3.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
86
Elongation at Break, % 9.0 to 16
11
Fatigue Strength, MPa 60 to 120
48
Poisson's Ratio 0.33
0.25
Shear Modulus, GPa 26
33
Shear Strength, MPa 90 to 180
210
Tensile Strength: Ultimate (UTS), MPa 150 to 300
280
Tensile Strength: Yield (Proof), MPa 100 to 260
210

Thermal Properties

Latent Heat of Fusion, J/g 400
120
Maximum Temperature: Mechanical, °C 160
95
Melting Completion (Liquidus), °C 640
390
Melting Onset (Solidus), °C 610
380
Specific Heat Capacity, J/kg-K 900
410
Thermal Conductivity, W/m-K 180
110
Thermal Expansion, µm/m-K 23
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 48
27
Electrical Conductivity: Equal Weight (Specific), % IACS 160
38

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
11
Density, g/cm3 2.7
6.4
Embodied Carbon, kg CO2/kg material 8.3
3.0
Embodied Energy, MJ/kg 150
57
Embodied Water, L/kg 1180
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 27
28
Resilience: Unit (Modulus of Resilience), kJ/m3 77 to 500
260
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 50
23
Strength to Weight: Axial, points 15 to 31
12
Strength to Weight: Bending, points 23 to 37
15
Thermal Diffusivity, mm2/s 75
43
Thermal Shock Resistance, points 6.5 to 13
8.6

Alloy Composition

Aluminum (Al), % 96.6 to 98.6
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0050
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0.15 to 0.4
0 to 0.25
Iron (Fe), % 0 to 0.4
0 to 0.1
Lead (Pb), % 0
0 to 0.0050
Magnesium (Mg), % 0.7 to 1.0
0.020 to 0.060
Manganese (Mn), % 0.2 to 0.35
0
Nickel (Ni), % 0
0 to 0.020
Silicon (Si), % 0.4 to 0.7
0 to 0.030
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.2
95.3 to 96.5
Residuals, % 0 to 0.15
0