EN 1.4618 Stainless Steel vs. Nickel 690
EN 1.4618 stainless steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is EN 1.4618 stainless steel and the bottom bar is nickel 690.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 200 to 210 | |
| 90 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 51 | |
| 3.4 to 34 |
| Fatigue Strength, MPa | 240 to 250 | |
| 180 to 300 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 79 |
| Shear Strength, MPa | 480 to 500 | |
| 420 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 680 to 700 | |
| 640 to 990 |
| Tensile Strength: Yield (Proof), MPa | 250 to 260 | |
| 250 to 760 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 900 | |
| 1010 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1380 |
| Melting Onset (Solidus), °C | 1360 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 15 | |
| 14 |
| Thermal Expansion, µm/m-K | 16 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.4 | |
| 1.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.7 | |
| 1.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 50 |
| Density, g/cm3 | 7.7 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 8.2 |
| Embodied Energy, MJ/kg | 39 | |
| 120 |
| Embodied Water, L/kg | 150 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 270 to 280 | |
| 31 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 170 | |
| 160 to 1440 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 24 to 25 | |
| 21 to 33 |
| Strength to Weight: Bending, points | 22 to 23 | |
| 20 to 27 |
| Thermal Diffusivity, mm2/s | 4.0 | |
| 3.5 |
| Thermal Shock Resistance, points | 15 to 16 | |
| 16 to 25 |
Alloy Composition
| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.050 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 27 to 31 |
| Copper (Cu), % | 1.0 to 2.5 | |
| 0 to 0.5 |
| Iron (Fe), % | 62.7 to 72.5 | |
| 7.0 to 11 |
| Manganese (Mn), % | 5.5 to 9.5 | |
| 0 to 0.5 |
| Nickel (Ni), % | 4.5 to 5.5 | |
| 58 to 66 |
| Nitrogen (N), % | 0 to 0.15 | |
| 0 |
| Phosphorus (P), % | 0 to 0.070 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.015 |