EN 1.4640 Stainless Steel vs. C70400 Copper-nickel
EN 1.4640 stainless steel belongs to the iron alloys classification, while C70400 copper-nickel belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is EN 1.4640 stainless steel and the bottom bar is C70400 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 120 |
| Poisson's Ratio | 0.28 | |
| 0.34 |
| Shear Modulus, GPa | 77 | |
| 45 |
| Tensile Strength: Ultimate (UTS), MPa | 620 to 650 | |
| 300 to 310 |
| Tensile Strength: Yield (Proof), MPa | 240 to 260 | |
| 95 to 230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 930 | |
| 210 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1120 |
| Melting Onset (Solidus), °C | 1380 | |
| 1060 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 390 |
| Thermal Conductivity, W/m-K | 15 | |
| 64 |
| Thermal Expansion, µm/m-K | 16 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 14 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 14 | |
| 32 |
| Density, g/cm3 | 7.8 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 3.0 |
| Embodied Energy, MJ/kg | 40 | |
| 47 |
| Embodied Water, L/kg | 150 | |
| 300 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 150 to 170 | |
| 38 to 220 |
| Stiffness to Weight: Axial, points | 14 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 25 | |
| 19 |
| Strength to Weight: Axial, points | 22 to 23 | |
| 9.3 to 9.8 |
| Strength to Weight: Bending, points | 21 | |
| 11 to 12 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 18 |
| Thermal Shock Resistance, points | 14 to 15 | |
| 10 to 11 |
Alloy Composition
| Carbon (C), % | 0.030 to 0.080 | |
| 0 |
| Chromium (Cr), % | 18 to 19 | |
| 0 |
| Copper (Cu), % | 1.3 to 2.0 | |
| 89.8 to 93.6 |
| Iron (Fe), % | 67.4 to 73.6 | |
| 1.3 to 1.7 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Manganese (Mn), % | 1.5 to 4.0 | |
| 0.3 to 0.8 |
| Nickel (Ni), % | 5.5 to 6.9 | |
| 4.8 to 6.2 |
| Nitrogen (N), % | 0.030 to 0.11 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 1.0 |
| Residuals, % | 0 | |
| 0 to 0.5 |