K94200 Alloy vs. Grade 21 Titanium
K94200 alloy belongs to the iron alloys classification, while grade 21 titanium belongs to the titanium alloys. There are 20 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 grade 21 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 140 |
| Elongation at Break, % | 5.0 to 32 | |
| 9.0 to 17 |
| Poisson's Ratio | 0.34 | |
| 0.32 |
| Shear Modulus, GPa | 54 | |
| 51 |
| Shear Strength, MPa | 330 to 410 | |
| 550 to 790 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 710 | |
| 890 to 1340 |
| Tensile Strength: Yield (Proof), MPa | 270 to 650 | |
| 870 to 1170 |
Thermal Properties
| Melting Onset (Solidus), °C | 1440 | |
| 1690 |
| Specific Heat Capacity, J/kg-K | 500 | |
| 500 |
| Thermal Conductivity, W/m-K | 15 | |
| 7.5 |
| Thermal Expansion, µm/m-K | 5.0 | |
| 7.1 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.2 | |
| 5.4 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 35 to 130 | |
| 110 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 to 1460 | |
| 2760 to 5010 |
| Stiffness to Weight: Axial, points | 9.8 | |
| 14 |
| Stiffness to Weight: Bending, points | 21 | |
| 32 |
| Strength to Weight: Axial, points | 17 to 24 | |
| 46 to 69 |
| Strength to Weight: Bending, points | 17 to 22 | |
| 38 to 50 |
| Thermal Diffusivity, mm2/s | 3.7 | |
| 2.8 |
| Thermal Shock Resistance, points | 49 to 70 | |
| 66 to 100 |