EN 1.4371 Stainless Steel vs. Grade CY40 Nickel
EN 1.4371 stainless steel belongs to the iron alloys classification, while grade CY40 nickel belongs to the nickel alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is EN 1.4371 stainless steel and the bottom bar is grade CY40 nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 45 to 51 | |
| 34 |
| Fatigue Strength, MPa | 290 to 340 | |
| 160 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 74 |
| Tensile Strength: Ultimate (UTS), MPa | 740 to 750 | |
| 540 |
| Tensile Strength: Yield (Proof), MPa | 320 to 340 | |
| 220 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 330 |
| Maximum Temperature: Mechanical, °C | 880 | |
| 960 |
| Melting Completion (Liquidus), °C | 1410 | |
| 1350 |
| Melting Onset (Solidus), °C | 1370 | |
| 1300 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 14 |
| Thermal Expansion, µm/m-K | 17 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.5 | |
| 1.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.9 | |
| 1.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 55 |
| Density, g/cm3 | 7.7 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 9.1 |
| Embodied Energy, MJ/kg | 38 | |
| 130 |
| Embodied Water, L/kg | 140 | |
| 260 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 270 to 310 | |
| 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 250 to 300 | |
| 130 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 27 | |
| 18 |
| Strength to Weight: Bending, points | 24 | |
| 18 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 3.7 |
| Thermal Shock Resistance, points | 16 | |
| 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.4 |
| Chromium (Cr), % | 16 to 17.5 | |
| 14 to 17 |
| Copper (Cu), % | 0 to 1.0 | |
| 0 |
| Iron (Fe), % | 66.7 to 74.4 | |
| 0 to 11 |
| Manganese (Mn), % | 6.0 to 8.0 | |
| 0 to 1.5 |
| Nickel (Ni), % | 3.5 to 5.5 | |
| 67 to 86 |
| Nitrogen (N), % | 0.15 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 3.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |