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Zamak 3 vs. Solder Alloy 121

Zamak 3 belongs to the zinc alloys classification, while solder alloy 121 belongs to the otherwise unclassified metals. There are 25 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 3 and the bottom bar is solder alloy 121.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 83
11
Elastic (Young's, Tensile) Modulus, GPa 86
21
Elongation at Break, % 11
25
Poisson's Ratio 0.25
0.43
Shear Modulus, GPa 33
7.5
Tensile Strength: Ultimate (UTS), MPa 280
32

Thermal Properties

Latent Heat of Fusion, J/g 120
29
Melting Completion (Liquidus), °C 390
290
Melting Onset (Solidus), °C 380
230
Specific Heat Capacity, J/kg-K 410
140
Thermal Conductivity, W/m-K 110
31
Thermal Expansion, µm/m-K 27
28

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
8.8
Electrical Conductivity: Equal Weight (Specific), % IACS 38
7.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
80
Density, g/cm3 6.4
11
Embodied Carbon, kg CO2/kg material 3.0
5.6
Embodied Energy, MJ/kg 57
93
Embodied Water, L/kg 380
580

Common Calculations

Stiffness to Weight: Axial, points 7.5
1.1
Stiffness to Weight: Bending, points 23
8.6
Strength to Weight: Axial, points 12
0.84
Strength to Weight: Bending, points 15
2.1
Thermal Diffusivity, mm2/s 43
20
Thermal Shock Resistance, points 8.6
3.9

Alloy Composition

Aluminum (Al), % 3.5 to 4.3
0 to 0.0010
Antimony (Sb), % 0
0 to 0.5
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0 to 0.0050
0 to 0.0050
Copper (Cu), % 0 to 0.25
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 0 to 0.1
0 to 0.020
Lead (Pb), % 0 to 0.0050
83.4 to 85.5
Magnesium (Mg), % 0.020 to 0.060
0
Nickel (Ni), % 0 to 0.020
0 to 0.010
Silicon (Si), % 0 to 0.030
0
Silver (Ag), % 0
0 to 0.1
Tin (Sn), % 0 to 0.0030
14.5 to 15.5
Zinc (Zn), % 95.3 to 96.5
0 to 0.0010