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Solder Alloy 501 vs. S31254 Stainless Steel

Solder alloy 501 belongs to the otherwise unclassified metals classification, while S31254 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is solder alloy 501 and the bottom bar is S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 14
190
Elastic (Young's, Tensile) Modulus, GPa 51
200
Elongation at Break, % 22
40
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 19
80
Tensile Strength: Ultimate (UTS), MPa 29
720

Thermal Properties

Latent Heat of Fusion, J/g 60
300
Melting Completion (Liquidus), °C 230
1460
Melting Onset (Solidus), °C 220
1420
Specific Heat Capacity, J/kg-K 220
460
Thermal Conductivity, W/m-K 67
14
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 14
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 17
2.3

Otherwise Unclassified Properties

Density, g/cm3 7.3
8.0
Embodied Carbon, kg CO2/kg material 15
5.5
Embodied Energy, MJ/kg 260
74
Embodied Water, L/kg 1390
190

Common Calculations

Stiffness to Weight: Axial, points 3.8
14
Stiffness to Weight: Bending, points 17
24
Strength to Weight: Axial, points 1.1
25
Strength to Weight: Bending, points 2.9
22
Thermal Diffusivity, mm2/s 41
3.8
Thermal Shock Resistance, points 1.9
15

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 0.060
0
Cadmium (Cd), % 0 to 0.0020
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 0.5 to 0.9
0.5 to 1.0
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
51.4 to 56.3
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 6.5
Nickel (Ni), % 0 to 0.010
17.5 to 18.5
Nitrogen (N), % 0
0.18 to 0.22
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.8
Silver (Ag), % 0.2 to 0.4
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 98.3 to 99.3
0
Zinc (Zn), % 0 to 0.0010
0