ASTM A387 Grade 12 Class 1 vs. Annealed 60Pd-40Ag Alloy
ASTM A387 grade 12 class 1 belongs to the iron alloys classification, while annealed 60Pd-40Ag alloy belongs to the otherwise unclassified metals. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is ASTM A387 grade 12 class 1 and the bottom bar is annealed 60Pd-40Ag alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 100 |
| Elongation at Break, % | 25 | |
| 28 |
| Poisson's Ratio | 0.29 | |
| 0.38 |
| Shear Modulus, GPa | 73 | |
| 37 |
| Shear Strength, MPa | 300 | |
| 220 |
| Tensile Strength: Ultimate (UTS), MPa | 470 | |
| 340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 140 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1360 |
| Melting Onset (Solidus), °C | 1420 | |
| 1310 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 240 |
| Thermal Conductivity, W/m-K | 44 | |
| 29 |
| Thermal Expansion, µm/m-K | 13 | |
| 15 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.2 | |
| 4.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.3 | |
| 3.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 11 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 4.9 |
| Stiffness to Weight: Bending, points | 24 | |
| 14 |
| Strength to Weight: Axial, points | 16 | |
| 8.4 |
| Strength to Weight: Bending, points | 17 | |
| 9.6 |
| Thermal Diffusivity, mm2/s | 12 | |
| 11 |
| Thermal Shock Resistance, points | 14 | |
| 16 |
Alloy Composition
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| Carbon (C), % | 0.050 to 0.17 | |
| 0 |
| Chromium (Cr), % | 0.8 to 1.2 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.1 |
| Iron (Fe), % | 97 to 98.2 | |
| 0 |
| Manganese (Mn), % | 0.4 to 0.65 | |
| 0 |
| Molybdenum (Mo), % | 0.45 to 0.6 | |
| 0 |
| Palladium (Pd), % | 0 | |
| 59.5 to 60.9 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 |
| Silicon (Si), % | 0.15 to 0.4 | |
| 0 |
| Silver (Ag), % | 0 | |
| 39.1 to 40.5 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.3 |