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Solder Alloy 502 vs. S44660 Stainless Steel

Solder alloy 502 belongs to the otherwise unclassified metals classification, while S44660 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 502 and the bottom bar is S44660 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 53
210
Elongation at Break, % 34
20
Poisson's Ratio 0.36
0.27
Shear Modulus, GPa 19
81
Tensile Strength: Ultimate (UTS), MPa 58
660

Thermal Properties

Latent Heat of Fusion, J/g 66
300
Melting Completion (Liquidus), °C 350
1460
Melting Onset (Solidus), °C 220
1410
Specific Heat Capacity, J/kg-K 230
480
Thermal Conductivity, W/m-K 47
17
Thermal Expansion, µm/m-K 22
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 15
2.9

Otherwise Unclassified Properties

Density, g/cm3 7.4
7.7
Embodied Carbon, kg CO2/kg material 15
4.3
Embodied Energy, MJ/kg 260
61

Common Calculations

Stiffness to Weight: Axial, points 4.0
15
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 2.2
24
Strength to Weight: Bending, points 4.5
22
Thermal Diffusivity, mm2/s 28
4.5
Thermal Shock Resistance, points 3.6
21

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 0.080
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
25 to 28
Copper (Cu), % 3.5 to 4.5
0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
60.4 to 71
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0 to 0.010
1.0 to 3.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0.8 to 1.2
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 93.8 to 95.7
0
Titanium (Ti), % 0
0.2 to 1.0
Zinc (Zn), % 0 to 0.0010
0