C71640 Copper-nickel vs. K94200 Alloy
C71640 copper-nickel belongs to the copper alloys classification, while K94200 alloy belongs to the iron alloys. There are 19 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 C71640 copper-nickel and the bottom bar is K94200 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 140 |
| Poisson's Ratio | 0.33 | |
| 0.34 |
| Shear Modulus, GPa | 52 | |
| 54 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 630 | |
| 500 to 710 |
| Tensile Strength: Yield (Proof), MPa | 190 to 460 | |
| 270 to 650 |
Thermal Properties
| Melting Onset (Solidus), °C | 1120 | |
| 1440 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 500 |
| Thermal Conductivity, W/m-K | 29 | |
| 15 |
| Thermal Expansion, µm/m-K | 15 | |
| 5.0 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 2.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.1 | |
| 3.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.9 | |
| 8.2 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 750 | |
| 250 to 1460 |
| Stiffness to Weight: Axial, points | 8.7 | |
| 9.8 |
| Stiffness to Weight: Bending, points | 20 | |
| 21 |
| Strength to Weight: Axial, points | 15 to 20 | |
| 17 to 24 |
| Strength to Weight: Bending, points | 16 to 18 | |
| 17 to 22 |
| Thermal Diffusivity, mm2/s | 8.2 | |
| 3.7 |
| Thermal Shock Resistance, points | 16 to 21 | |
| 49 to 70 |