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Solder Alloy 103 vs. S31727 Stainless Steel

Solder alloy 103 belongs to the otherwise unclassified metals classification, while S31727 stainless steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is solder alloy 103 and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 37
200
Elongation at Break, % 47
40
Poisson's Ratio 0.39
0.28
Shear Modulus, GPa 13
78
Tensile Strength: Ultimate (UTS), MPa 52
630

Thermal Properties

Latent Heat of Fusion, J/g 45
290
Melting Completion (Liquidus), °C 190
1440
Melting Onset (Solidus), °C 180
1390
Specific Heat Capacity, J/kg-K 180
470
Thermal Expansion, µm/m-K 24
16

Otherwise Unclassified Properties

Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 10
4.7
Embodied Energy, MJ/kg 180
64
Embodied Water, L/kg 910
180

Common Calculations

Stiffness to Weight: Axial, points 2.3
14
Stiffness to Weight: Bending, points 12
24
Strength to Weight: Axial, points 1.6
22
Strength to Weight: Bending, points 3.5
20
Thermal Shock Resistance, points 4.3
14

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
17.5 to 19
Copper (Cu), % 0 to 0.080
2.8 to 4.0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
53.7 to 61.3
Lead (Pb), % 38.8 to 40.5
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.8 to 4.5
Nickel (Ni), % 0 to 0.010
14.5 to 16.5
Nitrogen (N), % 0
0.15 to 0.21
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 59.5 to 60.5
0
Zinc (Zn), % 0 to 0.0010
0