Solder Alloy 123 vs. Grade 19 Titanium
Solder alloy 123 belongs to the otherwise unclassified metals classification, while grade 19 titanium belongs to the titanium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 123 and the bottom bar is grade 19 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 18 | |
| 120 |
| Elongation at Break, % | 45 | |
| 5.6 to 17 |
| Poisson's Ratio | 0.44 | |
| 0.32 |
| Shear Modulus, GPa | 6.2 | |
| 47 |
| Tensile Strength: Ultimate (UTS), MPa | 28 | |
| 890 to 1300 |
Thermal Properties
| Latent Heat of Fusion, J/g | 26 | |
| 400 |
| Melting Completion (Liquidus), °C | 310 | |
| 1660 |
| Melting Onset (Solidus), °C | 300 | |
| 1600 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 520 |
| Thermal Conductivity, W/m-K | 23 | |
| 6.2 |
| Thermal Expansion, µm/m-K | 29 | |
| 9.1 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 45 |
| Density, g/cm3 | 11 | |
| 5.0 |
| Embodied Carbon, kg CO2/kg material | 4.5 | |
| 47 |
| Embodied Energy, MJ/kg | 74 | |
| 760 |
| Embodied Water, L/kg | 500 | |
| 230 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.9 | |
| 14 |
| Stiffness to Weight: Bending, points | 7.8 | |
| 33 |
| Strength to Weight: Axial, points | 0.69 | |
| 49 to 72 |
| Strength to Weight: Bending, points | 1.8 | |
| 41 to 53 |
| Thermal Diffusivity, mm2/s | 16 | |
| 2.4 |
| Thermal Shock Resistance, points | 3.8 | |
| 57 to 83 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.0010 | |
| 3.0 to 4.0 |
| Antimony (Sb), % | 0 to 0.5 | |
| 0 |
| Arsenic (As), % | 0 to 0.030 | |
| 0 |
| Bismuth (Bi), % | 0 to 0.1 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.0050 | |
| 0 |
| Carbon (C), % | 0 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 5.5 to 6.5 |
| Copper (Cu), % | 0 to 0.080 | |
| 0 |
| Gold (Au), % | 0 to 0.050 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.020 |
| Indium (In), % | 0 to 0.1 | |
| 0 |
| Iron (Fe), % | 0 to 0.020 | |
| 0 to 0.3 |
| Lead (Pb), % | 93.5 to 95.5 | |
| 0 |
| Molybdenum (Mo), % | 0 | |
| 3.5 to 4.5 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.030 |
| Oxygen (O), % | 0 | |
| 0 to 0.12 |
| Silver (Ag), % | 0 to 0.1 | |
| 0 |
| Tin (Sn), % | 4.5 to 5.5 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 71.1 to 77 |
| Vanadium (V), % | 0 | |
| 7.5 to 8.5 |
| Zinc (Zn), % | 0 to 0.0010 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 3.5 to 4.5 |
| Residuals, % | 0 | |
| 0 to 0.4 |