K94200 Alloy vs. ASTM A387 Grade 9 Steel
Both K94200 alloy and ASTM A387 grade 9 steel are iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is K94200 alloy and the bottom bar is ASTM A387 grade 9 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 190 |
| Elongation at Break, % | 5.0 to 32 | |
| 20 to 21 |
| Poisson's Ratio | 0.34 | |
| 0.28 |
| Shear Modulus, GPa | 54 | |
| 75 |
| Shear Strength, MPa | 330 to 410 | |
| 310 to 380 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 710 | |
| 500 to 600 |
| Tensile Strength: Yield (Proof), MPa | 270 to 650 | |
| 230 to 350 |
Thermal Properties
| Melting Onset (Solidus), °C | 1440 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 500 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 26 |
| Thermal Expansion, µm/m-K | 5.0 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.7 | |
| 9.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.0 | |
| 10 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.2 | |
| 7.8 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 35 to 130 | |
| 83 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 to 1460 | |
| 140 to 310 |
| Stiffness to Weight: Axial, points | 9.8 | |
| 14 |
| Stiffness to Weight: Bending, points | 21 | |
| 25 |
| Strength to Weight: Axial, points | 17 to 24 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 17 to 22 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 3.7 | |
| 6.9 |
| Thermal Shock Resistance, points | 49 to 70 | |
| 14 to 17 |