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Solder Alloy 131 vs. S35315 Stainless Steel

Solder alloy 131 belongs to the otherwise unclassified metals classification, while S35315 stainless steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is solder alloy 131 and the bottom bar is S35315 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 38
200
Elongation at Break, % 47
46
Poisson's Ratio 0.39
0.28
Shear Modulus, GPa 14
78
Tensile Strength: Ultimate (UTS), MPa 31
740

Thermal Properties

Latent Heat of Fusion, J/g 46
330
Melting Completion (Liquidus), °C 180
1370
Melting Onset (Solidus), °C 180
1330
Specific Heat Capacity, J/kg-K 190
480
Thermal Conductivity, W/m-K 55
12
Thermal Expansion, µm/m-K 25
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 12
2.0

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 11
5.7
Embodied Energy, MJ/kg 180
81
Embodied Water, L/kg 940
220

Common Calculations

Stiffness to Weight: Axial, points 2.4
14
Stiffness to Weight: Bending, points 13
25
Strength to Weight: Axial, points 1.0
26
Strength to Weight: Bending, points 2.5
23
Thermal Diffusivity, mm2/s 33
3.1
Thermal Shock Resistance, points 2.4
17

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
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
0.040 to 0.080
Cerium (Ce), % 0
0.030 to 0.1
Chromium (Cr), % 0
24 to 26
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
33.6 to 40.6
Lead (Pb), % 35.5 to 37.3
0
Manganese (Mn), % 0
0 to 2.0
Nickel (Ni), % 0 to 0.010
34 to 36
Nitrogen (N), % 0
0.12 to 0.18
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
1.2 to 2.0
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