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Solder Alloy 136 vs. ASTM A369 Grade FP91

Solder alloy 136 belongs to the otherwise unclassified metals classification, while ASTM A369 grade FP91 belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is solder alloy 136 and the bottom bar is ASTM A369 grade FP91.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 25
190
Elongation at Break, % 19
19
Poisson's Ratio 0.42
0.28
Shear Modulus, GPa 8.9
75
Tensile Strength: Ultimate (UTS), MPa 34
670

Thermal Properties

Latent Heat of Fusion, J/g 34
270
Melting Completion (Liquidus), °C 260
1460
Melting Onset (Solidus), °C 190
1420
Specific Heat Capacity, J/kg-K 150
470
Thermal Conductivity, W/m-K 40
26
Thermal Expansion, µm/m-K 27
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.2
8.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.0
10

Otherwise Unclassified Properties

Base Metal Price, % relative 90
7.0
Density, g/cm3 10
7.8
Embodied Carbon, kg CO2/kg material 6.8
2.6
Embodied Energy, MJ/kg 110
37
Embodied Water, L/kg 680
88

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
24
Strength to Weight: Bending, points 2.3
22
Thermal Diffusivity, mm2/s 26
6.9
Thermal Shock Resistance, points 3.6
18

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0 to 0.020
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
0.080 to 0.12
Chromium (Cr), % 0
8.0 to 9.5
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
87.3 to 90.3
Lead (Pb), % 71.9 to 75
0
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.85 to 1.1
Nickel (Ni), % 0 to 0.010
0 to 0.4
Niobium (Nb), % 0
0.060 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0.2 to 0.5
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 24.5 to 25.5
0
Titanium (Ti), % 0
0 to 0.010
Vanadium (V), % 0
0.18 to 0.25
Zinc (Zn), % 0 to 0.0010
0
Zirconium (Zr), % 0
0 to 0.010