C72900 Copper-nickel vs. ASTM A203 Steel
C72900 copper-nickel belongs to the copper alloys classification, while ASTM A203 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is C72900 copper-nickel and the bottom bar is ASTM A203 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 190 |
| Elongation at Break, % | 6.0 to 20 | |
| 22 to 26 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 45 | |
| 73 |
| Shear Strength, MPa | 540 to 630 | |
| 330 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 870 to 1080 | |
| 520 to 590 |
| Tensile Strength: Yield (Proof), MPa | 700 to 920 | |
| 290 to 390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 210 | |
| 410 |
| Melting Completion (Liquidus), °C | 1120 | |
| 1460 |
| Melting Onset (Solidus), °C | 950 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 470 |
| Thermal Conductivity, W/m-K | 29 | |
| 52 |
| Thermal Expansion, µm/m-K | 17 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.8 | |
| 7.4 to 7.6 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.0 | |
| 8.5 to 8.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 39 | |
| 3.2 to 4.0 |
| Density, g/cm3 | 8.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 4.6 | |
| 1.6 to 1.7 |
| Embodied Energy, MJ/kg | 72 | |
| 21 to 23 |
| Embodied Water, L/kg | 360 | |
| 50 to 52 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 49 to 210 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2030 to 3490 | |
| 230 to 410 |
| Stiffness to Weight: Axial, points | 7.6 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 24 |
| Strength to Weight: Axial, points | 27 to 34 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 23 to 27 | |
| 18 to 20 |
| Thermal Diffusivity, mm2/s | 8.6 | |
| 14 |
| Thermal Shock Resistance, points | 31 to 38 | |
| 15 to 17 |