Annealed SAE-AISI A9 vs. Annealed K94200
Both annealed SAE-AISI A9 and annealed K94200 are iron alloys. Both are furnished in the annealed condition. There are 23 material properties with values for both materials. Properties with values for just one material (10, 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 K94200.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 230 | |
| 130 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 140 |
| Elongation at Break, % | 21 | |
| 32 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 74 | |
| 54 |
| Shear Strength, MPa | 480 | |
| 330 |
| Tensile Strength: Ultimate (UTS), MPa | 770 | |
| 500 |
| Tensile Strength: Yield (Proof), MPa | 360 | |
| 270 |
Thermal Properties
| Melting Onset (Solidus), °C | 1410 | |
| 1440 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 500 |
| Thermal Conductivity, W/m-K | 35 | |
| 15 |
| Thermal Expansion, µm/m-K | 12 | |
| 5.0 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.9 | |
| 2.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 9.2 | |
| 3.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 8.2 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 130 | |
| 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 350 | |
| 250 |
| Stiffness to Weight: Axial, points | 14 | |
| 9.8 |
| Stiffness to Weight: Bending, points | 25 | |
| 21 |
| Strength to Weight: Axial, points | 28 | |
| 17 |
| Strength to Weight: Bending, points | 24 | |
| 17 |
| Thermal Diffusivity, mm2/s | 9.6 | |
| 3.7 |
| Thermal Shock Resistance, points | 25 | |
| 49 |