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Solder Alloy 151 vs. S40975 Stainless Steel

Solder alloy 151 belongs to the otherwise unclassified metals classification, while S40975 stainless steel belongs to the iron alloys. There are 23 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 151 and the bottom bar is S40975 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 39
190
Elongation at Break, % 37
22
Poisson's Ratio 0.37
0.28
Shear Modulus, GPa 14
75
Tensile Strength: Ultimate (UTS), MPa 46
460

Thermal Properties

Latent Heat of Fusion, J/g 47
270
Melting Completion (Liquidus), °C 150
1450
Melting Onset (Solidus), °C 150
1400
Specific Heat Capacity, J/kg-K 190
480
Thermal Conductivity, W/m-K 44
26
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 10
3.3

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.8
Embodied Carbon, kg CO2/kg material 9.2
2.0
Embodied Energy, MJ/kg 160
28
Embodied Water, L/kg 920
95

Common Calculations

Stiffness to Weight: Axial, points 2.5
14
Stiffness to Weight: Bending, points 13
25
Strength to Weight: Axial, points 1.4
17
Strength to Weight: Bending, points 3.2
17
Thermal Diffusivity, mm2/s 26
7.0
Thermal Shock Resistance, points 3.2
17

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), % 17.5 to 18.5
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
10.5 to 11.7
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
84.4 to 89
Lead (Pb), % 30.3 to 33
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.010
0.5 to 1.0
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 49.5 to 50.5
0
Titanium (Ti), % 0
0 to 0.75
Zinc (Zn), % 0 to 0.0010
0