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Zamak 7 vs. Solder Alloy 402

Zamak 7 belongs to the zinc alloys classification, while solder alloy 402 belongs to the otherwise unclassified metals. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is Zamak 7 and the bottom bar is solder alloy 402.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
52
Elongation at Break, % 13
20
Poisson's Ratio 0.25
0.36
Shear Modulus, GPa 33
19
Tensile Strength: Ultimate (UTS), MPa 280
57

Thermal Properties

Latent Heat of Fusion, J/g 120
64
Melting Completion (Liquidus), °C 390
310
Melting Onset (Solidus), °C 380
230
Specific Heat Capacity, J/kg-K 410
230
Thermal Conductivity, W/m-K 110
61
Thermal Expansion, µm/m-K 27
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
15
Electrical Conductivity: Equal Weight (Specific), % IACS 38
18

Otherwise Unclassified Properties

Density, g/cm3 6.4
7.3
Embodied Carbon, kg CO2/kg material 3.0
15
Embodied Energy, MJ/kg 57
250
Embodied Water, L/kg 380
1180

Common Calculations

Stiffness to Weight: Axial, points 7.5
3.9
Stiffness to Weight: Bending, points 23
17
Strength to Weight: Axial, points 12
2.2
Strength to Weight: Bending, points 15
4.5
Thermal Diffusivity, mm2/s 43
37
Thermal Shock Resistance, points 8.6
3.6

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0 to 0.0010
Antimony (Sb), % 0
0 to 0.1
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.1
Cadmium (Cd), % 0 to 0.0020
0 to 0.0020
Copper (Cu), % 0 to 0.25
2.5 to 3.5
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.075
0 to 0.020
Lead (Pb), % 0 to 0.0030
0 to 0.070
Magnesium (Mg), % 0.0050 to 0.020
0
Nickel (Ni), % 0.0050 to 0.020
0 to 0.010
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0 to 0.0010
95.9 to 97.5
Zinc (Zn), % 95.3 to 96.5
0 to 0.0010