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Solder Alloy 124 vs. AWS E240

Solder alloy 124 belongs to the otherwise unclassified metals classification, while AWS E240 belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is solder alloy 124 and the bottom bar is AWS E240.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 17
200
Elongation at Break, % 46
17
Poisson's Ratio 0.44
0.28
Shear Modulus, GPa 5.8
77
Tensile Strength: Ultimate (UTS), MPa 27
770

Thermal Properties

Latent Heat of Fusion, J/g 24
290
Melting Completion (Liquidus), °C 330
1390
Melting Onset (Solidus), °C 320
1350
Specific Heat Capacity, J/kg-K 130
480
Thermal Conductivity, W/m-K 22
15
Thermal Expansion, µm/m-K 29
15

Otherwise Unclassified Properties

Base Metal Price, % relative 70
14
Density, g/cm3 11
7.7
Embodied Carbon, kg CO2/kg material 4.1
3.0
Embodied Energy, MJ/kg 68
42
Embodied Water, L/kg 470
160

Common Calculations

Stiffness to Weight: Axial, points 0.83
14
Stiffness to Weight: Bending, points 7.6
25
Strength to Weight: Axial, points 0.65
28
Strength to Weight: Bending, points 1.8
24
Thermal Diffusivity, mm2/s 15
3.9
Thermal Shock Resistance, points 3.9
19

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 0.060
Chromium (Cr), % 0
17 to 19
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
58.6 to 68.4
Lead (Pb), % 97.2 to 98.2
0
Manganese (Mn), % 0
10.5 to 13.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0 to 0.010
4.0 to 6.0
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), % 1.8 to 2.2
0
Zinc (Zn), % 0 to 0.0010
0