Nickel 690 vs. EN 1.4371 Stainless Steel
Nickel 690 belongs to the nickel alloys classification, while EN 1.4371 stainless steel belongs to the iron alloys. They have a modest 31% 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 (2, in this case) are not shown.
For each property being compared, the top bar is nickel 690 and the bottom bar is EN 1.4371 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 90 | |
| 220 to 230 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 3.4 to 34 | |
| 45 to 51 |
| Fatigue Strength, MPa | 180 to 300 | |
| 290 to 340 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 79 | |
| 77 |
| Shear Strength, MPa | 420 to 570 | |
| 520 to 540 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 990 | |
| 740 to 750 |
| Tensile Strength: Yield (Proof), MPa | 250 to 760 | |
| 320 to 340 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 1010 | |
| 880 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1410 |
| Melting Onset (Solidus), °C | 1340 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 14 | |
| 15 |
| Thermal Expansion, µm/m-K | 14 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.5 | |
| 2.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.6 | |
| 2.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 50 | |
| 12 |
| Density, g/cm3 | 8.3 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 2.6 |
| Embodied Energy, MJ/kg | 120 | |
| 38 |
| Embodied Water, L/kg | 290 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 to 170 | |
| 270 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 1440 | |
| 250 to 300 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 33 | |
| 27 |
| Strength to Weight: Bending, points | 20 to 27 | |
| 24 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 4.0 |
| Thermal Shock Resistance, points | 16 to 25 | |
| 16 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.030 |
| Chromium (Cr), % | 27 to 31 | |
| 16 to 17.5 |
| Copper (Cu), % | 0 to 0.5 | |
| 0 to 1.0 |
| Iron (Fe), % | 7.0 to 11 | |
| 66.7 to 74.4 |
| Manganese (Mn), % | 0 to 0.5 | |
| 6.0 to 8.0 |
| Nickel (Ni), % | 58 to 66 | |
| 3.5 to 5.5 |
| Nitrogen (N), % | 0 | |
| 0.15 to 0.25 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |