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Solder Alloy 115 vs. S82031 Stainless Steel

Solder alloy 115 belongs to the otherwise unclassified metals classification, while S82031 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 115 and the bottom bar is S82031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 28
200
Elongation at Break, % 22
39
Poisson's Ratio 0.41
0.28
Shear Modulus, GPa 10
78
Tensile Strength: Ultimate (UTS), MPa 36
780

Thermal Properties

Latent Heat of Fusion, J/g 36
290
Melting Completion (Liquidus), °C 250
1430
Melting Onset (Solidus), °C 180
1390
Specific Heat Capacity, J/kg-K 160
480
Thermal Conductivity, W/m-K 43
15
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 95
13
Density, g/cm3 9.9
7.7
Embodied Carbon, kg CO2/kg material 7.8
2.8
Embodied Energy, MJ/kg 130
39
Embodied Water, L/kg 730
150

Common Calculations

Stiffness to Weight: Axial, points 1.6
14
Stiffness to Weight: Bending, points 10
25
Strength to Weight: Axial, points 1.0
28
Strength to Weight: Bending, points 2.4
24
Thermal Diffusivity, mm2/s 27
3.9
Thermal Shock Resistance, points 3.4
22

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.5
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 0.050
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 0 to 0.080
0 to 1.0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
68 to 78.3
Lead (Pb), % 63.4 to 65.5
0
Manganese (Mn), % 0
0 to 2.5
Molybdenum (Mo), % 0
0.6 to 1.4
Nickel (Ni), % 0 to 0.010
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.24
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.8
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.0050
Tin (Sn), % 34.5 to 35.5
0
Zinc (Zn), % 0 to 0.0010
0