Solder Alloy 191 vs. ASTM A217 Cast Steel
Solder alloy 191 belongs to the otherwise unclassified metals classification, while ASTM A217 cast steel belongs to the iron alloys. There are 22 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 191 and the bottom bar is ASTM A217 cast steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 19 | |
| 190 |
| Elongation at Break, % | 32 | |
| 21 to 27 |
| Poisson's Ratio | 0.43 | |
| 0.28 to 0.29 |
| Shear Modulus, GPa | 6.5 | |
| 73 to 75 |
| Tensile Strength: Ultimate (UTS), MPa | 29 | |
| 540 to 710 |
Thermal Properties
| Latent Heat of Fusion, J/g | 27 | |
| 250 to 270 |
| Melting Completion (Liquidus), °C | 300 | |
| 1450 to 1460 |
| Melting Onset (Solidus), °C | 300 | |
| 1410 to 1420 |
| Specific Heat Capacity, J/kg-K | 130 | |
| 470 |
| Thermal Conductivity, W/m-K | 24 | |
| 26 to 50 |
| Thermal Expansion, µm/m-K | 29 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 8.8 | |
| 7.3 to 9.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.2 | |
| 8.4 to 11 |
Otherwise Unclassified Properties
| Density, g/cm3 | 11 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 5.8 | |
| 1.5 to 2.1 |
| Embodied Energy, MJ/kg | 95 | |
| 20 to 28 |
Common Calculations
| Stiffness to Weight: Axial, points | 0.93 | |
| 13 to 14 |
| Stiffness to Weight: Bending, points | 8.0 | |
| 24 to 25 |
| Strength to Weight: Axial, points | 0.72 | |
| 19 to 25 |
| Strength to Weight: Bending, points | 1.9 | |
| 19 to 23 |
| Thermal Diffusivity, mm2/s | 16 | |
| 6.9 to 14 |
| Thermal Shock Resistance, points | 3.9 | |
| 16 to 20 |