Solder Alloy 121 vs. EN 1.5026 Steel
Solder alloy 121 belongs to the otherwise unclassified metals classification, while EN 1.5026 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is solder alloy 121 and the bottom bar is EN 1.5026 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 11 | |
| 200 to 480 |
| Elastic (Young's, Tensile) Modulus, GPa | 21 | |
| 190 |
| Poisson's Ratio | 0.43 | |
| 0.29 |
| Shear Modulus, GPa | 7.5 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 32 | |
| 660 to 1980 |
Thermal Properties
| Latent Heat of Fusion, J/g | 29 | |
| 280 |
| Melting Completion (Liquidus), °C | 290 | |
| 1440 |
| Melting Onset (Solidus), °C | 230 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 480 |
| Thermal Conductivity, W/m-K | 31 | |
| 47 |
| Thermal Expansion, µm/m-K | 28 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 8.8 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.4 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 80 | |
| 1.9 |
| Density, g/cm3 | 11 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 5.6 | |
| 1.5 |
| Embodied Energy, MJ/kg | 93 | |
| 19 |
| Embodied Water, L/kg | 580 | |
| 46 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 8.6 | |
| 25 |
| Strength to Weight: Axial, points | 0.84 | |
| 24 to 71 |
| Strength to Weight: Bending, points | 2.1 | |
| 22 to 45 |
| Thermal Diffusivity, mm2/s | 20 | |
| 13 |
| Thermal Shock Resistance, points | 3.9 | |
| 20 to 60 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.0010 | |
| 0 |
| Antimony (Sb), % | 0 to 0.5 | |
| 0 |
| Arsenic (As), % | 0 to 0.030 | |
| 0 |
| Bismuth (Bi), % | 0 to 0.25 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.0050 | |
| 0 |
| Carbon (C), % | 0 | |
| 0.52 to 0.6 |
| Copper (Cu), % | 0 to 0.080 | |
| 0 |
| Gold (Au), % | 0 to 0.050 | |
| 0 |
| Indium (In), % | 0 to 0.1 | |
| 0 |
| Iron (Fe), % | 0 to 0.020 | |
| 96.5 to 97.3 |
| Lead (Pb), % | 83.4 to 85.5 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0.6 to 0.9 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 | |
| 1.6 to 2.0 |
| Silver (Ag), % | 0 to 0.1 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.025 |
| Tin (Sn), % | 14.5 to 15.5 | |
| 0 |
| Zinc (Zn), % | 0 to 0.0010 | |
| 0 |