Annealed SAE-AISI A9 vs. Annealed ASTM B617
Annealed SAE-AISI A9 belongs to the iron alloys classification, while annealed ASTM B617 belongs to the otherwise unclassified metals. There are 19 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 annealed SAE-AISI A9 and the bottom bar is annealed ASTM B617.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 75 |
| Elongation at Break, % | 21 | |
| 22 |
| Poisson's Ratio | 0.29 | |
| 0.37 |
| Shear Modulus, GPa | 74 | |
| 28 |
| Shear Strength, MPa | 480 | |
| 180 |
| Tensile Strength: Ultimate (UTS), MPa | 770 | |
| 290 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 120 |
| Melting Completion (Liquidus), °C | 1460 | |
| 870 |
| Melting Onset (Solidus), °C | 1410 | |
| 780 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 250 |
| Thermal Expansion, µm/m-K | 12 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.9 | |
| 83 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 9.2 | |
| 72 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 4.1 |
| Stiffness to Weight: Bending, points | 25 | |
| 14 |
| Strength to Weight: Axial, points | 28 | |
| 7.7 |
| Strength to Weight: Bending, points | 24 | |
| 9.3 |
| Thermal Shock Resistance, points | 25 | |
| 14 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 0 to 0.0050 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.050 |
| Carbon (C), % | 0.45 to 0.55 | |
| 0 |
| Chromium (Cr), % | 4.8 to 5.5 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 9.0 to 10.4 |
| Iron (Fe), % | 87 to 90.5 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 | |
| 0 to 0.030 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 |
| Molybdenum (Mo), % | 1.3 to 1.8 | |
| 0 |
| Nickel (Ni), % | 1.3 to 1.8 | |
| 0 to 0.010 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.020 |
| Silicon (Si), % | 1.0 to 1.2 | |
| 0 |
| Silver (Ag), % | 0 | |
| 89.6 to 91 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Vanadium (V), % | 0.8 to 1.4 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.060 |
| Residuals, % | 0 | |
| 0 to 0.060 |