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Solder Alloy 136 vs. S81921 Stainless Steel

Solder alloy 136 belongs to the otherwise unclassified metals classification, while S81921 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 136 and the bottom bar is S81921 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 25
200
Elongation at Break, % 19
29
Poisson's Ratio 0.42
0.28
Shear Modulus, GPa 8.9
79
Tensile Strength: Ultimate (UTS), MPa 34
710

Thermal Properties

Latent Heat of Fusion, J/g 34
290
Melting Completion (Liquidus), °C 260
1430
Melting Onset (Solidus), °C 190
1390
Specific Heat Capacity, J/kg-K 150
480
Thermal Conductivity, W/m-K 40
15
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 90
14
Density, g/cm3 10
7.7
Embodied Carbon, kg CO2/kg material 6.8
2.9
Embodied Energy, MJ/kg 110
41
Embodied Water, L/kg 680
150

Common Calculations

Stiffness to Weight: Axial, points 1.4
14
Stiffness to Weight: Bending, points 9.5
25
Strength to Weight: Axial, points 0.92
25
Strength to Weight: Bending, points 2.3
23
Thermal Diffusivity, mm2/s 26
4.0
Thermal Shock Resistance, points 3.6
20

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0.5 to 2.0
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.25
0
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
19 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
66.7 to 75.9
Lead (Pb), % 71.9 to 75
0
Manganese (Mn), % 0
2.0 to 4.0
Molybdenum (Mo), % 0
1.0 to 2.0
Nickel (Ni), % 0 to 0.010
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.2
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), % 24.5 to 25.5
0
Zinc (Zn), % 0 to 0.0010
0