SAE-AISI A9 Steel vs. K94200 Alloy
Both SAE-AISI A9 steel and K94200 alloy are iron alloys. There are 17 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 SAE-AISI A9 steel and the bottom bar is K94200 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 140 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 74 | |
| 54 |
| Tensile Strength: Ultimate (UTS), MPa | 770 to 2030 | |
| 500 to 710 |
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
| Stiffness to Weight: Axial, points | 14 | |
| 9.8 |
| Stiffness to Weight: Bending, points | 25 | |
| 21 |
| Strength to Weight: Axial, points | 28 to 73 | |
| 17 to 24 |
| Strength to Weight: Bending, points | 24 to 46 | |
| 17 to 22 |
| Thermal Diffusivity, mm2/s | 9.6 | |
| 3.7 |
| Thermal Shock Resistance, points | 25 to 66 | |
| 49 to 70 |