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Solder Alloy 151 vs. ZA-27

Solder alloy 151 belongs to the otherwise unclassified metals classification, while ZA-27 belongs to the zinc alloys. There are 23 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is solder alloy 151 and the bottom bar is ZA-27.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 39
78
Elongation at Break, % 37
2.0 to 4.5
Poisson's Ratio 0.37
0.27
Shear Modulus, GPa 14
31
Tensile Strength: Ultimate (UTS), MPa 46
400 to 430

Thermal Properties

Latent Heat of Fusion, J/g 47
130
Melting Completion (Liquidus), °C 150
480
Melting Onset (Solidus), °C 150
380
Specific Heat Capacity, J/kg-K 190
530
Thermal Conductivity, W/m-K 44
130
Thermal Expansion, µm/m-K 26
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
30
Electrical Conductivity: Equal Weight (Specific), % IACS 10
53

Otherwise Unclassified Properties

Density, g/cm3 8.8
5.0
Embodied Carbon, kg CO2/kg material 9.2
4.2
Embodied Energy, MJ/kg 160
80
Embodied Water, L/kg 920
570

Common Calculations

Stiffness to Weight: Axial, points 2.5
8.6
Stiffness to Weight: Bending, points 13
28
Strength to Weight: Axial, points 1.4
22 to 24
Strength to Weight: Bending, points 3.2
24 to 25
Thermal Diffusivity, mm2/s 26
47
Thermal Shock Resistance, points 3.2
14 to 15

Alloy Composition

Aluminum (Al), % 0 to 0.0010
25 to 28
Antimony (Sb), % 0 to 0.2
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 17.5 to 18.5
0 to 0.0060
Copper (Cu), % 0 to 0.080
2.0 to 2.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.1
Lead (Pb), % 30.3 to 33
0 to 0.0060
Magnesium (Mg), % 0
0.010 to 0.020
Nickel (Ni), % 0 to 0.010
0 to 0.020
Silicon (Si), % 0
0 to 0.080
Silver (Ag), % 0 to 0.1
0
Tin (Sn), % 49.5 to 50.5
0 to 0.0030
Zinc (Zn), % 0 to 0.0010
69.3 to 73