Solder Alloy 121 vs. EN 1.4612 Stainless Steel
Solder alloy 121 belongs to the otherwise unclassified metals classification, while EN 1.4612 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is solder alloy 121 and the bottom bar is EN 1.4612 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 21 | |
| 190 |
| Elongation at Break, % | 25 | |
| 11 |
| Poisson's Ratio | 0.43 | |
| 0.28 |
| Shear Modulus, GPa | 7.5 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 32 | |
| 1690 to 1850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 29 | |
| 280 |
| Melting Completion (Liquidus), °C | 290 | |
| 1450 |
| Melting Onset (Solidus), °C | 230 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 480 |
| Thermal Expansion, µm/m-K | 28 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 80 | |
| 16 |
| Density, g/cm3 | 11 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 5.6 | |
| 3.6 |
| Embodied Energy, MJ/kg | 93 | |
| 50 |
| Embodied Water, L/kg | 580 | |
| 140 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.1 | |
| 14 |
| Stiffness to Weight: Bending, points | 8.6 | |
| 25 |
| Strength to Weight: Axial, points | 0.84 | |
| 60 to 65 |
| Strength to Weight: Bending, points | 2.1 | |
| 40 to 43 |
| Thermal Shock Resistance, points | 3.9 | |
| 58 to 63 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.0010 | |
| 1.4 to 1.8 |
| 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 to 0.015 |
| Chromium (Cr), % | 0 | |
| 11 to 12.5 |
| 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 | |
| 71.5 to 75.5 |
| Lead (Pb), % | 83.4 to 85.5 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 0 | |
| 1.8 to 2.3 |
| Nickel (Ni), % | 0 to 0.010 | |
| 10.2 to 11.3 |
| Nitrogen (N), % | 0 | |
| 0 to 0.010 |
| Phosphorus (P), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Silver (Ag), % | 0 to 0.1 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.0050 |
| Tin (Sn), % | 14.5 to 15.5 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0.2 to 0.5 |
| Zinc (Zn), % | 0 to 0.0010 | |
| 0 |