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Solder Alloy 301 vs. Zamak 7

Solder alloy 301 belongs to the otherwise unclassified metals classification, while Zamak 7 belongs to the zinc alloys. There are 26 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 solder alloy 301 and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 23
80
Elastic (Young's, Tensile) Modulus, GPa 40
86
Elongation at Break, % 51
13
Poisson's Ratio 0.34
0.25
Shear Modulus, GPa 15
33
Tensile Strength: Ultimate (UTS), MPa 55
280
Tensile Strength: Yield (Proof), MPa 49
250

Thermal Properties

Latent Heat of Fusion, J/g 55
120
Melting Completion (Liquidus), °C 140
390
Melting Onset (Solidus), °C 140
380
Specific Heat Capacity, J/kg-K 160
410
Thermal Conductivity, W/m-K 19
110
Thermal Expansion, µm/m-K 14
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
27
Electrical Conductivity: Equal Weight (Specific), % IACS 4.9
38

Otherwise Unclassified Properties

Density, g/cm3 8.7
6.4
Embodied Carbon, kg CO2/kg material 13
3.0
Embodied Energy, MJ/kg 210
57

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
36
Resilience: Unit (Modulus of Resilience), kJ/m3 30
370
Stiffness to Weight: Axial, points 2.5
7.5
Stiffness to Weight: Bending, points 13
23
Strength to Weight: Axial, points 1.8
12
Strength to Weight: Bending, points 3.7
15
Thermal Diffusivity, mm2/s 13
43
Thermal Shock Resistance, points 7.2
8.6

Alloy Composition

Aluminum (Al), % 0 to 0.0010
3.5 to 4.3
Antimony (Sb), % 0 to 0.1
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 56.5 to 59
0
Cadmium (Cd), % 0 to 0.0020
0 to 0.0020
Copper (Cu), % 0 to 0.050
0 to 0.25
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.075
Lead (Pb), % 0 to 0.070
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Nickel (Ni), % 0 to 0.010
0.0050 to 0.020
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 41 to 43
0 to 0.0010
Zinc (Zn), % 0 to 0.0010
95.3 to 96.5