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AWS E240 vs. Solder Alloy 137

AWS E240 belongs to the iron alloys classification, while solder alloy 137 belongs to the otherwise unclassified metals. 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 AWS E240 and the bottom bar is solder alloy 137.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
24
Elongation at Break, % 17
19
Poisson's Ratio 0.28
0.42
Shear Modulus, GPa 77
8.3
Tensile Strength: Ultimate (UTS), MPa 770
34

Thermal Properties

Latent Heat of Fusion, J/g 290
33
Melting Completion (Liquidus), °C 1390
270
Melting Onset (Solidus), °C 1350
190
Specific Heat Capacity, J/kg-K 480
150
Thermal Conductivity, W/m-K 15
38
Thermal Expansion, µm/m-K 15
27

Otherwise Unclassified Properties

Base Metal Price, % relative 14
85
Density, g/cm3 7.7
10
Embodied Carbon, kg CO2/kg material 3.0
6.3
Embodied Energy, MJ/kg 42
100
Embodied Water, L/kg 160
660

Common Calculations

Stiffness to Weight: Axial, points 14
1.3
Stiffness to Weight: Bending, points 25
9.2
Strength to Weight: Axial, points 28
0.9
Strength to Weight: Bending, points 24
2.2
Thermal Diffusivity, mm2/s 3.9
25
Thermal Shock Resistance, points 19
3.7

Alloy Composition

Aluminum (Al), % 0
0 to 0.0010
Antimony (Sb), % 0
0.5 to 3.0
Arsenic (As), % 0
0 to 0.030
Bismuth (Bi), % 0
0 to 0.25
Cadmium (Cd), % 0
0 to 0.0050
Carbon (C), % 0 to 0.060
0
Chromium (Cr), % 17 to 19
0
Copper (Cu), % 0 to 0.75
0 to 0.080
Gold (Au), % 0
0 to 0.050
Indium (In), % 0
0 to 0.1
Iron (Fe), % 58.6 to 68.4
0 to 0.020
Lead (Pb), % 0
75.9 to 80
Manganese (Mn), % 10.5 to 13.5
0
Molybdenum (Mo), % 0 to 0.75
0
Nickel (Ni), % 4.0 to 6.0
0 to 0.010
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
19.5 to 20.5
Zinc (Zn), % 0
0 to 0.0010