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Solder Alloy 191 vs. R56401 Titanium

Solder alloy 191 belongs to the otherwise unclassified metals classification, while R56401 titanium belongs to the titanium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is solder alloy 191 and the bottom bar is R56401 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 19
110
Elongation at Break, % 32
9.1
Poisson's Ratio 0.43
0.32
Shear Modulus, GPa 6.5
40
Tensile Strength: Ultimate (UTS), MPa 29
940

Thermal Properties

Latent Heat of Fusion, J/g 27
410
Melting Completion (Liquidus), °C 300
1610
Melting Onset (Solidus), °C 300
1560
Specific Heat Capacity, J/kg-K 130
560
Thermal Conductivity, W/m-K 24
7.1
Thermal Expansion, µm/m-K 29
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.8
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
2.0

Otherwise Unclassified Properties

Density, g/cm3 11
4.5
Embodied Carbon, kg CO2/kg material 5.8
38
Embodied Energy, MJ/kg 95
610

Common Calculations

Stiffness to Weight: Axial, points 0.93
13
Stiffness to Weight: Bending, points 8.0
35
Strength to Weight: Axial, points 0.72
59
Strength to Weight: Bending, points 1.9
48
Thermal Diffusivity, mm2/s 16
2.9
Thermal Shock Resistance, points 3.9
67

Alloy Composition

Aluminum (Al), % 0 to 0.0010
5.5 to 6.5
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 to 0.080
Copper (Cu), % 0 to 0.080
0
Gold (Au), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.012
Indium (In), % 0 to 0.1
0
Iron (Fe), % 0 to 0.020
0 to 0.25
Lead (Pb), % 92.4 to 94
0
Nickel (Ni), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.13
Silver (Ag), % 1.2 to 1.8
0
Tin (Sn), % 4.8 to 5.2
0
Titanium (Ti), % 0
88.5 to 91
Vanadium (V), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 0.0010
0