ASTM B563 Pd-Ag-Cu vs. ASTM A229 Spring Steel
ASTM B563 Pd-Ag-Cu belongs to the otherwise unclassified metals classification, while ASTM A229 spring steel belongs to the iron alloys. There are 19 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 ASTM B563 Pd-Ag-Cu and the bottom bar is ASTM A229 spring steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 190 |
| Elongation at Break, % | 7.0 to 17 | |
| 14 |
| Poisson's Ratio | 0.37 | |
| 0.29 |
| Shear Modulus, GPa | 37 | |
| 72 |
| Shear Strength, MPa | 470 to 690 | |
| 1020 to 1140 |
| Tensile Strength: Ultimate (UTS), MPa | 760 to 1170 | |
| 1690 to 1890 |
Thermal Properties
| Latent Heat of Fusion, J/g | 150 | |
| 250 |
| Melting Completion (Liquidus), °C | 1180 | |
| 1450 |
| Melting Onset (Solidus), °C | 1030 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 260 | |
| 470 |
| Thermal Expansion, µm/m-K | 14 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 5.6 to 6.7 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 4.6 to 5.5 | |
| 8.3 |
Otherwise Unclassified Properties
| Density, g/cm3 | 11 | |
| 7.8 |
Common Calculations
| Stiffness to Weight: Axial, points | 5.2 | |
| 13 |
| Stiffness to Weight: Bending, points | 14 | |
| 24 |
| Strength to Weight: Axial, points | 19 to 30 | |
| 60 to 67 |
| Strength to Weight: Bending, points | 17 to 22 | |
| 40 to 43 |
| Thermal Shock Resistance, points | 39 to 61 | |
| 54 to 60 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0.55 to 0.85 |
| Copper (Cu), % | 15.5 to 16.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 97.5 to 99 |
| Manganese (Mn), % | 0 | |
| 0.3 to 1.2 |
| Nickel (Ni), % | 0.8 to 1.2 | |
| 0 |
| Palladium (Pd), % | 43 to 45 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Platinum (Pt), % | 0.8 to 1.2 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.35 |
| Silver (Ag), % | 37 to 39 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.050 |
| Residuals, % | 0 to 0.4 | |
| 0 |