Solder Alloy 137 vs. EN 1.4729 Stainless Steel
Solder alloy 137 belongs to the otherwise unclassified metals classification, while EN 1.4729 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is solder alloy 137 and the bottom bar is EN 1.4729 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 24 | |
| 190 |
| Elongation at Break, % | 19 | |
| 15 |
| Poisson's Ratio | 0.42 | |
| 0.28 |
| Shear Modulus, GPa | 8.3 | |
| 75 |
Thermal Properties
| Latent Heat of Fusion, J/g | 33 | |
| 300 |
| Melting Completion (Liquidus), °C | 270 | |
| 1420 |
| Melting Onset (Solidus), °C | 190 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 150 | |
| 490 |
| Thermal Conductivity, W/m-K | 38 | |
| 24 |
| Thermal Expansion, µm/m-K | 27 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 8.9 | |
| 2.8 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.7 | |
| 3.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 85 | |
| 7.5 |
| Density, g/cm3 | 10 | |
| 7.6 |
| Embodied Carbon, kg CO2/kg material | 6.3 | |
| 2.1 |
| Embodied Energy, MJ/kg | 100 | |
| 29 |
| Embodied Water, L/kg | 660 | |
| 100 |
Common Calculations
| Stiffness to Weight: Axial, points | 1.3 | |
| 14 |
| Stiffness to Weight: Bending, points | 9.2 | |
| 25 |
| Thermal Diffusivity, mm2/s | 25 | |
| 6.5 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.0010 | |
| 0 |
| Antimony (Sb), % | 0.5 to 3.0 | |
| 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 | |
| 0.3 to 0.5 |
| Chromium (Cr), % | 0 | |
| 12 to 14 |
| 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 | |
| 80.4 to 86.7 |
| Lead (Pb), % | 75.9 to 80 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 1.0 to 2.5 |
| Silver (Ag), % | 0 to 0.1 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tin (Sn), % | 19.5 to 20.5 | |
| 0 |
| Zinc (Zn), % | 0 to 0.0010 | |
| 0 |