Solder Alloy 191 vs. Nickel 685
Solder alloy 191 belongs to the otherwise unclassified metals classification, while nickel 685 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is solder alloy 191 and the bottom bar is nickel 685.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 19 | |
| 200 |
| Elongation at Break, % | 32 | |
| 17 |
| Poisson's Ratio | 0.43 | |
| 0.29 |
| Shear Modulus, GPa | 6.5 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 29 | |
| 1250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 27 | |
| 320 |
| Melting Completion (Liquidus), °C | 300 | |
| 1380 |
| Melting Onset (Solidus), °C | 300 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 460 |
| Thermal Conductivity, W/m-K | 24 | |
| 13 |
| Thermal Expansion, µm/m-K | 29 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 11 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 5.8 | |
| 10 |
| Embodied Energy, MJ/kg | 95 | |
| 140 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.93 | |
| 13 |
| Stiffness to Weight: Bending, points | 8.0 | |
| 23 |
| Strength to Weight: Axial, points | 0.72 | |
| 42 |
| Strength to Weight: Bending, points | 1.9 | |
| 31 |
| Thermal Diffusivity, mm2/s | 16 | |
| 3.3 |
| Thermal Shock Resistance, points | 3.9 | |
| 37 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.0010 | |
| 1.2 to 1.6 |
| Antimony (Sb), % | 0 to 0.2 | |
| 0 |
| Arsenic (As), % | 0 to 0.030 | |
| 0 |
| Bismuth (Bi), % | 0 to 0.1 | |
| 0 |
| Boron (B), % | 0 | |
| 0.0030 to 0.010 |
| Cadmium (Cd), % | 0 to 0.0020 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.030 to 0.1 |
| Chromium (Cr), % | 0 | |
| 18 to 21 |
| Cobalt (Co), % | 0 | |
| 12 to 15 |
| Copper (Cu), % | 0 to 0.080 | |
| 0 to 0.5 |
| Gold (Au), % | 0 to 0.050 | |
| 0 |
| Indium (In), % | 0 to 0.1 | |
| 0 |
| Iron (Fe), % | 0 to 0.020 | |
| 0 to 2.0 |
| Lead (Pb), % | 92.4 to 94 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 3.5 to 5.0 |
| Nickel (Ni), % | 0 to 0.010 | |
| 49.6 to 62.5 |
| Phosphorus (P), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0 to 0.75 |
| Silver (Ag), % | 1.2 to 1.8 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tin (Sn), % | 4.8 to 5.2 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 2.8 to 3.3 |
| Zinc (Zn), % | 0 to 0.0010 | |
| 0.020 to 0.12 |