C72700 Copper-nickel vs. K94200 Alloy
C72700 copper-nickel belongs to the copper alloys classification, while K94200 alloy belongs to the iron 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 C72700 copper-nickel and the bottom bar is K94200 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 140 |
| Elongation at Break, % | 4.0 to 36 | |
| 5.0 to 32 |
| Poisson's Ratio | 0.34 | |
| 0.34 |
| Shear Modulus, GPa | 44 | |
| 54 |
| Shear Strength, MPa | 310 to 620 | |
| 330 to 410 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 1070 | |
| 500 to 710 |
| Tensile Strength: Yield (Proof), MPa | 580 to 1060 | |
| 270 to 650 |
Thermal Properties
| Melting Onset (Solidus), °C | 930 | |
| 1440 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 500 |
| Thermal Conductivity, W/m-K | 54 | |
| 15 |
| Thermal Expansion, µm/m-K | 17 | |
| 5.0 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 2.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 11 | |
| 3.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.8 | |
| 8.2 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 20 to 380 | |
| 35 to 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1420 to 4770 | |
| 250 to 1460 |
| Stiffness to Weight: Axial, points | 7.4 | |
| 9.8 |
| Stiffness to Weight: Bending, points | 19 | |
| 21 |
| Strength to Weight: Axial, points | 14 to 34 | |
| 17 to 24 |
| Strength to Weight: Bending, points | 15 to 26 | |
| 17 to 22 |
| Thermal Diffusivity, mm2/s | 16 | |
| 3.7 |
| Thermal Shock Resistance, points | 16 to 38 | |
| 49 to 70 |