Nickel 690 vs. AISI 201LN Stainless Steel
Nickel 690 belongs to the nickel alloys classification, while AISI 201LN 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 AISI 201LN stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 90 | |
| 210 to 320 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 3.4 to 34 | |
| 25 to 51 |
| Fatigue Strength, MPa | 180 to 300 | |
| 340 to 540 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 79 | |
| 77 |
| Shear Strength, MPa | 420 to 570 | |
| 530 to 680 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 990 | |
| 740 to 1060 |
| Tensile Strength: Yield (Proof), MPa | 250 to 760 | |
| 350 to 770 |
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 | |
| 2.4 |
| 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 | |
| 230 to 310 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 1440 | |
| 310 to 1520 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 33 | |
| 27 to 38 |
| Strength to Weight: Bending, points | 20 to 27 | |
| 24 to 30 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 4.0 |
| Thermal Shock Resistance, points | 16 to 25 | |
| 16 to 23 |
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 | |
| 67.9 to 73.5 |
| Manganese (Mn), % | 0 to 0.5 | |
| 6.4 to 7.5 |
| Nickel (Ni), % | 58 to 66 | |
| 4.0 to 5.0 |
| Nitrogen (N), % | 0 | |
| 0.1 to 0.25 |
| Phosphorus (P), % | 0 | |
| 0 to 0.045 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |