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Solder Alloy 137 vs. S41050 Stainless Steel

Solder alloy 137 belongs to the otherwise unclassified metals classification, while S41050 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is solder alloy 137 and the bottom bar is S41050 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 24
190
Elongation at Break, % 19
25
Poisson's Ratio 0.42
0.28
Shear Modulus, GPa 8.3
76
Tensile Strength: Ultimate (UTS), MPa 34
470

Thermal Properties

Latent Heat of Fusion, J/g 33
270
Melting Completion (Liquidus), °C 270
1440
Melting Onset (Solidus), °C 190
1400
Specific Heat Capacity, J/kg-K 150
480
Thermal Conductivity, W/m-K 38
27
Thermal Expansion, µm/m-K 27
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.9
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 7.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 85
7.0
Density, g/cm3 10
7.8
Embodied Carbon, kg CO2/kg material 6.3
1.9
Embodied Energy, MJ/kg 100
27
Embodied Water, L/kg 660
97

Common Calculations

Stiffness to Weight: Axial, points 1.3
14
Stiffness to Weight: Bending, points 9.2
25
Strength to Weight: Axial, points 0.9
17
Strength to Weight: Bending, points 2.2
17
Thermal Diffusivity, mm2/s 25
7.2
Thermal Shock Resistance, points 3.7
17

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0.5 to 3.0
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.25
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
10.5 to 12.5
Copper (Cu), % 0 to 0.080
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
84.2 to 88.9
Lead (Pb), % 75.9 to 80
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.010
0.6 to 1.1
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 19.5 to 20.5
0
Zinc (Zn), % 0 to 0.0010
0