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Solder Alloy 181 vs. S38815 Stainless Steel

Solder alloy 181 belongs to the otherwise unclassified metals classification, while S38815 stainless steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is solder alloy 181 and the bottom bar is S38815 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
190
Elongation at Break, % 41
34
Poisson's Ratio 0.44
0.29
Shear Modulus, GPa 6.1
74
Tensile Strength: Ultimate (UTS), MPa 27
610

Thermal Properties

Latent Heat of Fusion, J/g 26
370
Melting Completion (Liquidus), °C 310
1360
Melting Onset (Solidus), °C 300
1310
Specific Heat Capacity, J/kg-K 130
500
Thermal Expansion, µm/m-K 29
15

Otherwise Unclassified Properties

Density, g/cm3 11
7.5
Embodied Carbon, kg CO2/kg material 6.2
3.8
Embodied Energy, MJ/kg 100
54

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
22
Strength to Weight: Bending, points 1.8
21
Thermal Shock Resistance, points 3.8
15

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.3
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
13 to 15
Copper (Cu), % 0 to 0.080
0.75 to 1.5
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
56.1 to 67
Lead (Pb), % 96.2 to 98
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.75 to 1.5
Nickel (Ni), % 0 to 0.010
13 to 17
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
5.5 to 6.5
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.0010
0