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Solder Alloy 117 vs. SAE-AISI 81B45 Steel

Solder alloy 117 belongs to the otherwise unclassified metals classification, while SAE-AISI 81B45 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is solder alloy 117 and the bottom bar is SAE-AISI 81B45 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 11
160 to 200
Elastic (Young's, Tensile) Modulus, GPa 23
190
Elongation at Break, % 20
12 to 24
Poisson's Ratio 0.42
0.29
Shear Modulus, GPa 8.1
73
Tensile Strength: Ultimate (UTS), MPa 33
540 to 670

Thermal Properties

Latent Heat of Fusion, J/g 31
250
Melting Completion (Liquidus), °C 280
1460
Melting Onset (Solidus), °C 180
1420
Specific Heat Capacity, J/kg-K 150
470
Thermal Conductivity, W/m-K 37
40
Thermal Expansion, µm/m-K 28
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.7
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 7.5
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 85
2.3
Density, g/cm3 11
7.8
Embodied Carbon, kg CO2/kg material 6.1
1.5
Embodied Energy, MJ/kg 100
20
Embodied Water, L/kg 610
49

Common Calculations

Stiffness to Weight: Axial, points 1.2
13
Stiffness to Weight: Bending, points 9.0
24
Strength to Weight: Axial, points 0.88
19 to 24
Strength to Weight: Bending, points 2.2
19 to 22
Thermal Diffusivity, mm2/s 24
11
Thermal Shock Resistance, points 3.7
17 to 21

Alloy Composition

Aluminum (Al), % 0 to 0.0010
0
Antimony (Sb), % 0 to 0.5
0
Arsenic (As), % 0 to 0.030
0
Bismuth (Bi), % 0 to 0.25
0
Boron (B), % 0
0.00050 to 0.0030
Cadmium (Cd), % 0 to 0.0050
0
Carbon (C), % 0
0.43 to 0.48
Chromium (Cr), % 0
0.35 to 0.55
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
97 to 98
Lead (Pb), % 78.4 to 80.5
0
Manganese (Mn), % 0
0.75 to 1.0
Molybdenum (Mo), % 0
0.080 to 0.15
Nickel (Ni), % 0 to 0.010
0.2 to 0.4
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Silver (Ag), % 0 to 0.1
0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 19.5 to 20.5
0
Zinc (Zn), % 0 to 0.0010
0