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Solder Alloy 124 vs. S35140 Stainless Steel

Solder alloy 124 belongs to the otherwise unclassified metals classification, while S35140 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 124 and the bottom bar is S35140 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 17
200
Elongation at Break, % 46
34
Poisson's Ratio 0.44
0.28
Shear Modulus, GPa 5.8
78
Tensile Strength: Ultimate (UTS), MPa 27
690

Thermal Properties

Latent Heat of Fusion, J/g 24
300
Melting Completion (Liquidus), °C 330
1420
Melting Onset (Solidus), °C 320
1370
Specific Heat Capacity, J/kg-K 130
470
Thermal Conductivity, W/m-K 22
14
Thermal Expansion, µm/m-K 29
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 7.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 70
31
Density, g/cm3 11
8.0
Embodied Carbon, kg CO2/kg material 4.1
5.5
Embodied Energy, MJ/kg 68
78
Embodied Water, L/kg 470
190

Common Calculations

Stiffness to Weight: Axial, points 0.83
14
Stiffness to Weight: Bending, points 7.6
24
Strength to Weight: Axial, points 0.65
24
Strength to Weight: Bending, points 1.8
22
Thermal Diffusivity, mm2/s 15
3.7
Thermal Shock Resistance, points 3.9
16

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.12
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 0.1
Chromium (Cr), % 0
20 to 22
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
44.1 to 52.7
Lead (Pb), % 97.2 to 98.2
0
Manganese (Mn), % 0
1.0 to 3.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0 to 0.010
25 to 27
Niobium (Nb), % 0
0.25 to 0.75
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 0.75
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.8 to 2.2
0
Zinc (Zn), % 0 to 0.0010
0