Solder Alloy 121 vs. Grade 8 Babbitt Metal
Both solder alloy 121 and grade 8 Babbitt Metal are otherwise unclassified metals. Both are furnished in the as-fabricated (no temper or treatment) condition. They have 85% of their average alloy composition in common. There are 18 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is solder alloy 121 and the bottom bar is grade 8 Babbitt Metal.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 11 | |
| 15 |
| Elastic (Young's, Tensile) Modulus, GPa | 21 | |
| 24 |
| Poisson's Ratio | 0.43 | |
| 0.41 |
| Shear Modulus, GPa | 7.5 | |
| 8.5 |
Thermal Properties
| Latent Heat of Fusion, J/g | 29 | |
| 46 |
| Melting Completion (Liquidus), °C | 290 | |
| 270 |
| Melting Onset (Solidus), °C | 230 | |
| 240 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 150 |
| Thermal Conductivity, W/m-K | 31 | |
| 24 |
| Thermal Expansion, µm/m-K | 28 | |
| 24 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 80 | |
| 19 |
| Density, g/cm3 | 11 | |
| 10 |
| Embodied Carbon, kg CO2/kg material | 5.6 | |
| 3.9 |
| Embodied Energy, MJ/kg | 93 | |
| 53 |
| Embodied Water, L/kg | 580 | |
| 840 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.1 | |
| 1.3 |
| Stiffness to Weight: Bending, points | 8.6 | |
| 9.2 |
| Thermal Diffusivity, mm2/s | 20 | |
| 16 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.0010 | |
| 0 to 0.0050 |
| Antimony (Sb), % | 0 to 0.5 | |
| 14 to 16 |
| Arsenic (As), % | 0 to 0.030 | |
| 0.3 to 0.6 |
| Bismuth (Bi), % | 0 to 0.25 | |
| 0 to 0.1 |
| Cadmium (Cd), % | 0 to 0.0050 | |
| 0 to 0.050 |
| 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 0.1 |
| Lead (Pb), % | 83.4 to 85.5 | |
| 77.1 to 81.2 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 |
| Silver (Ag), % | 0 to 0.1 | |
| 0 |
| Tin (Sn), % | 14.5 to 15.5 | |
| 4.5 to 5.5 |
| Zinc (Zn), % | 0 to 0.0010 | |
| 0 to 0.0050 |