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Solder Alloy 181 vs. Grade FDSiCrV Steel

Solder alloy 181 belongs to the otherwise unclassified metals classification, while grade FDSiCrV steel belongs to the iron alloys. There are 21 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 181 and the bottom bar is grade FDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 18
190
Poisson's Ratio 0.44
0.29
Shear Modulus, GPa 6.1
80
Tensile Strength: Ultimate (UTS), MPa 27
2100

Thermal Properties

Latent Heat of Fusion, J/g 26
270
Melting Completion (Liquidus), °C 310
1440
Melting Onset (Solidus), °C 300
1400
Specific Heat Capacity, J/kg-K 130
480
Thermal Conductivity, W/m-K 24
47
Thermal Expansion, µm/m-K 29
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.4
8.6

Otherwise Unclassified Properties

Density, g/cm3 11
7.7
Embodied Carbon, kg CO2/kg material 6.2
1.9
Embodied Energy, MJ/kg 100
26

Common Calculations

Stiffness to Weight: Axial, points 0.86
13
Stiffness to Weight: Bending, points 7.7
25
Strength to Weight: Axial, points 0.66
75
Strength to Weight: Bending, points 1.8
47
Thermal Diffusivity, mm2/s 16
13
Thermal Shock Resistance, points 3.8
63

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), % 0 to 0.0020
0
Carbon (C), % 0
0.5 to 0.7
Chromium (Cr), % 0
0.5 to 1.0
Copper (Cu), % 0 to 0.080
0 to 0.12
Gold (Au), % 0 to 0.050
0
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
96 to 97.8
Lead (Pb), % 96.2 to 98
0
Manganese (Mn), % 0
0.4 to 0.9
Nickel (Ni), % 0 to 0.010
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
1.2 to 1.7
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.25
0
Vanadium (V), % 0
0.1 to 0.25
Zinc (Zn), % 0 to 0.0010
0