K94200 Alloy vs. C72900 Copper-nickel
K94200 alloy belongs to the iron alloys classification, while C72900 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is K94200 alloy and the bottom bar is C72900 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 120 |
| Elongation at Break, % | 5.0 to 32 | |
| 6.0 to 20 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 54 | |
| 45 |
| Shear Strength, MPa | 330 to 410 | |
| 540 to 630 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 710 | |
| 870 to 1080 |
| Tensile Strength: Yield (Proof), MPa | 270 to 650 | |
| 700 to 920 |
Thermal Properties
| Melting Onset (Solidus), °C | 1440 | |
| 950 |
| Specific Heat Capacity, J/kg-K | 500 | |
| 380 |
| Thermal Conductivity, W/m-K | 15 | |
| 29 |
| Thermal Expansion, µm/m-K | 5.0 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.7 | |
| 7.8 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.0 | |
| 8.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.2 | |
| 8.8 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 35 to 130 | |
| 49 to 210 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 to 1460 | |
| 2030 to 3490 |
| Stiffness to Weight: Axial, points | 9.8 | |
| 7.6 |
| Stiffness to Weight: Bending, points | 21 | |
| 19 |
| Strength to Weight: Axial, points | 17 to 24 | |
| 27 to 34 |
| Strength to Weight: Bending, points | 17 to 22 | |
| 23 to 27 |
| Thermal Diffusivity, mm2/s | 3.7 | |
| 8.6 |
| Thermal Shock Resistance, points | 49 to 70 | |
| 31 to 38 |