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Solder Alloy 131 vs. S41041 Stainless Steel

Solder alloy 131 belongs to the otherwise unclassified metals classification, while S41041 stainless steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is solder alloy 131 and the bottom bar is S41041 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
190
Elongation at Break, % 47
17
Poisson's Ratio 0.39
0.28
Shear Modulus, GPa 14
76
Tensile Strength: Ultimate (UTS), MPa 31
910

Thermal Properties

Latent Heat of Fusion, J/g 46
270
Melting Completion (Liquidus), °C 180
1450
Melting Onset (Solidus), °C 180
1410
Specific Heat Capacity, J/kg-K 190
480
Thermal Conductivity, W/m-K 55
29
Thermal Expansion, µm/m-K 25
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 12
3.3

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 11
2.2
Embodied Energy, MJ/kg 180
31
Embodied Water, L/kg 940
100

Common Calculations

Stiffness to Weight: Axial, points 2.4
14
Stiffness to Weight: Bending, points 13
25
Strength to Weight: Axial, points 1.0
32
Strength to Weight: Bending, points 2.5
27
Thermal Diffusivity, mm2/s 33
7.8
Thermal Shock Resistance, points 2.4
33

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.050
Antimony (Sb), % 0.2 to 0.5
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
0.13 to 0.18
Chromium (Cr), % 0
11.5 to 13
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
84.5 to 87.8
Lead (Pb), % 35.5 to 37.3
0
Manganese (Mn), % 0
0.4 to 0.6
Molybdenum (Mo), % 0
0 to 0.2
Nickel (Ni), % 0 to 0.010
0 to 0.5
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 62.5 to 63.5
0
Zinc (Zn), % 0 to 0.0010
0