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Solder Alloy 124 vs. AWS E320

Solder alloy 124 belongs to the otherwise unclassified metals classification, while AWS E320 belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is solder alloy 124 and the bottom bar is AWS E320.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 17
200
Elongation at Break, % 46
34
Poisson's Ratio 0.44
0.28
Shear Modulus, GPa 5.8
77
Tensile Strength: Ultimate (UTS), MPa 27
620

Thermal Properties

Latent Heat of Fusion, J/g 24
300
Melting Completion (Liquidus), °C 330
1410
Melting Onset (Solidus), °C 320
1360
Specific Heat Capacity, J/kg-K 130
460
Thermal Expansion, µm/m-K 29
14

Otherwise Unclassified Properties

Base Metal Price, % relative 70
38
Density, g/cm3 11
8.2
Embodied Carbon, kg CO2/kg material 4.1
6.5
Embodied Energy, MJ/kg 68
91
Embodied Water, L/kg 470
220

Common Calculations

Stiffness to Weight: Axial, points 0.83
13
Stiffness to Weight: Bending, points 7.6
24
Strength to Weight: Axial, points 0.65
21
Strength to Weight: Bending, points 1.8
20
Thermal Shock Resistance, points 3.9
16

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.12
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.1
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 0 to 0.080
3.0 to 4.0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
31.8 to 43.5
Lead (Pb), % 97.2 to 98.2
0
Manganese (Mn), % 0
0.5 to 2.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.010
32 to 36
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.6
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.8 to 2.2
0
Zinc (Zn), % 0 to 0.0010
0