Solder Alloy 721 vs. Type 2 Pewter
Both solder alloy 721 and Type 2 pewter are otherwise unclassified metals. They have a moderately high 92% of their average alloy composition in common. There are 17 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 721 and the bottom bar is Type 2 pewter.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 51 | |
| 52 |
| Poisson's Ratio | 0.36 | |
| 0.35 |
| Shear Modulus, GPa | 19 | |
| 19 |
| Tensile Strength: Ultimate (UTS), MPa | 50 | |
| 52 to 68 |
Thermal Properties
| Latent Heat of Fusion, J/g | 61 | |
| 69 |
| Melting Completion (Liquidus), °C | 220 | |
| 300 |
| Melting Onset (Solidus), °C | 210 | |
| 240 |
| Specific Heat Capacity, J/kg-K | 220 | |
| 220 |
| Thermal Expansion, µm/m-K | 22 | |
| 21 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.4 | |
| 7.3 |
| Embodied Carbon, kg CO2/kg material | 17 | |
| 12 |
| Embodied Energy, MJ/kg | 280 | |
| 210 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.8 | |
| 3.9 |
| Stiffness to Weight: Bending, points | 17 | |
| 17 |
| Strength to Weight: Axial, points | 1.9 | |
| 2.0 to 2.6 |
| Strength to Weight: Bending, points | 4.1 | |
| 4.3 to 5.1 |
| Thermal Shock Resistance, points | 3.2 | |
| 3.4 to 4.4 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.0010 | |
| 0 |
| Antimony (Sb), % | 0 to 0.1 | |
| 5.0 to 7.5 |
| Arsenic (As), % | 0 to 0.030 | |
| 0 to 0.050 |
| Bismuth (Bi), % | 0.8 to 1.2 | |
| 0 |
| Cadmium (Cd), % | 0 to 0.0020 | |
| 0 |
| Copper (Cu), % | 0.3 to 0.7 | |
| 1.5 to 3.0 |
| Gold (Au), % | 0 to 0.050 | |
| 0 |
| Indium (In), % | 0 to 0.1 | |
| 0 |
| Iron (Fe), % | 0 to 0.020 | |
| 0 to 0.015 |
| Lead (Pb), % | 0 to 0.070 | |
| 0 to 0.050 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 |
| Silver (Ag), % | 2.3 to 2.7 | |
| 0 |
| Tin (Sn), % | 95 to 96.6 | |
| 90 to 93 |
| Zinc (Zn), % | 0 to 0.0010 | |
| 0 to 0.0050 |