Solder Alloy 401 vs. ASTM A204 Steel
Solder alloy 401 belongs to the otherwise unclassified metals classification, while ASTM A204 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is solder alloy 401 and the bottom bar is ASTM A204 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 9.0 | |
| 160 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 50 | |
| 190 |
| Elongation at Break, % | 21 | |
| 18 to 22 |
| Poisson's Ratio | 0.36 | |
| 0.29 |
| Shear Modulus, GPa | 19 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 29 | |
| 520 to 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 60 | |
| 250 |
| Melting Completion (Liquidus), °C | 230 | |
| 1470 |
| Melting Onset (Solidus), °C | 230 | |
| 1420 to 1430 |
| Specific Heat Capacity, J/kg-K | 220 | |
| 470 |
| Thermal Conductivity, W/m-K | 66 | |
| 52 |
| Thermal Expansion, µm/m-K | 22 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 14 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 17 | |
| 8.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.3 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 15 | |
| 1.5 |
| Embodied Energy, MJ/kg | 250 | |
| 20 |
| Embodied Water, L/kg | 1200 | |
| 47 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.8 | |
| 13 |
| Stiffness to Weight: Bending, points | 17 | |
| 24 |
| Strength to Weight: Axial, points | 1.1 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 2.9 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 40 | |
| 14 |
| Thermal Shock Resistance, points | 1.9 | |
| 15 to 17 |