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Solder Alloy 181 vs. S32760 Stainless Steel

Solder alloy 181 belongs to the otherwise unclassified metals classification, while S32760 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is solder alloy 181 and the bottom bar is S32760 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
200
Elongation at Break, % 41
28
Poisson's Ratio 0.44
0.27
Shear Modulus, GPa 6.1
80
Tensile Strength: Ultimate (UTS), MPa 27
850

Thermal Properties

Latent Heat of Fusion, J/g 26
300
Melting Completion (Liquidus), °C 310
1460
Melting Onset (Solidus), °C 300
1410
Specific Heat Capacity, J/kg-K 130
470
Thermal Conductivity, W/m-K 24
15
Thermal Expansion, µm/m-K 29
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
2.5

Otherwise Unclassified Properties

Density, g/cm3 11
7.9
Embodied Carbon, kg CO2/kg material 6.2
4.1
Embodied Energy, MJ/kg 100
57

Common Calculations

Stiffness to Weight: Axial, points 0.86
14
Stiffness to Weight: Bending, points 7.7
25
Strength to Weight: Axial, points 0.66
30
Strength to Weight: Bending, points 1.8
25
Thermal Diffusivity, mm2/s 16
4.0
Thermal Shock Resistance, points 3.8
23

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.2
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 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0 to 0.080
0.5 to 1.0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
57.6 to 65.8
Lead (Pb), % 96.2 to 98
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.010
6.0 to 8.0
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.25
0
Tungsten (W), % 0
0.5 to 1.0
Zinc (Zn), % 0 to 0.0010
0