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Solder Alloy 123 vs. AWS E209

Solder alloy 123 belongs to the otherwise unclassified metals classification, while AWS E209 belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 123 and the bottom bar is AWS E209.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
200
Elongation at Break, % 45
17
Poisson's Ratio 0.44
0.28
Shear Modulus, GPa 6.2
79
Tensile Strength: Ultimate (UTS), MPa 28
770

Thermal Properties

Latent Heat of Fusion, J/g 26
300
Melting Completion (Liquidus), °C 310
1420
Melting Onset (Solidus), °C 300
1370
Specific Heat Capacity, J/kg-K 130
480
Thermal Expansion, µm/m-K 29
14

Otherwise Unclassified Properties

Base Metal Price, % relative 75
21
Density, g/cm3 11
7.8
Embodied Carbon, kg CO2/kg material 4.5
4.4
Embodied Energy, MJ/kg 74
63
Embodied Water, L/kg 500
180

Common Calculations

Stiffness to Weight: Axial, points 0.9
14
Stiffness to Weight: Bending, points 7.8
25
Strength to Weight: Axial, points 0.69
28
Strength to Weight: Bending, points 1.8
24
Thermal Shock Resistance, points 3.8
19

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.060
Chromium (Cr), % 0
20.5 to 24
Copper (Cu), % 0 to 0.080
0 to 0.75
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
51.5 to 64.3
Lead (Pb), % 93.5 to 95.5
0
Manganese (Mn), % 0
4.0 to 7.0
Molybdenum (Mo), % 0
1.5 to 3.0
Nickel (Ni), % 0 to 0.010
9.5 to 12
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 4.5 to 5.5
0
Vanadium (V), % 0
0.1 to 0.3
Zinc (Zn), % 0 to 0.0010
0