K94200 Alloy vs. S21904 Stainless Steel
Both K94200 alloy and S21904 stainless steel are iron alloys. There are 22 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 K94200 alloy and the bottom bar is S21904 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 200 |
| Elongation at Break, % | 5.0 to 32 | |
| 17 to 51 |
| Poisson's Ratio | 0.34 | |
| 0.28 |
| Shear Modulus, GPa | 54 | |
| 78 |
| Shear Strength, MPa | 330 to 410 | |
| 510 to 620 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 710 | |
| 700 to 1000 |
| Tensile Strength: Yield (Proof), MPa | 270 to 650 | |
| 390 to 910 |
Thermal Properties
| Melting Onset (Solidus), °C | 1440 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 500 | |
| 480 |
| Thermal Conductivity, W/m-K | 15 | |
| 14 |
| Thermal Expansion, µm/m-K | 5.0 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.7 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.0 | |
| 2.9 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.2 | |
| 7.7 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 35 to 130 | |
| 160 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 to 1460 | |
| 380 to 2070 |
| Stiffness to Weight: Axial, points | 9.8 | |
| 14 |
| Stiffness to Weight: Bending, points | 21 | |
| 25 |
| Strength to Weight: Axial, points | 17 to 24 | |
| 25 to 36 |
| Strength to Weight: Bending, points | 17 to 22 | |
| 23 to 29 |
| Thermal Diffusivity, mm2/s | 3.7 | |
| 3.8 |
| Thermal Shock Resistance, points | 49 to 70 | |
| 15 to 21 |