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Solder Alloy 701 vs. S35140 Stainless Steel

Solder alloy 701 belongs to the otherwise unclassified metals classification, while S35140 stainless steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is solder alloy 701 and the bottom bar is S35140 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 51
200
Elongation at Break, % 37
34
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
78
Tensile Strength: Ultimate (UTS), MPa 54
690

Thermal Properties

Latent Heat of Fusion, J/g 61
300
Melting Completion (Liquidus), °C 230
1420
Melting Onset (Solidus), °C 220
1370
Specific Heat Capacity, J/kg-K 220
470
Thermal Conductivity, W/m-K 52
14
Thermal Expansion, µm/m-K 22
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 17
1.9

Otherwise Unclassified Properties

Density, g/cm3 7.4
8.0
Embodied Carbon, kg CO2/kg material 18
5.5
Embodied Energy, MJ/kg 300
78

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 2.0
24
Strength to Weight: Bending, points 4.3
22
Thermal Diffusivity, mm2/s 32
3.7
Thermal Shock Resistance, points 3.5
16

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.1
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 0.050
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), % 0 to 0.070
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), % 3.5 to 3.9
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 95.6 to 96.5
0
Zinc (Zn), % 0 to 0.0010
0