S17400 Stainless Steel vs. Nickel 690
S17400 stainless steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. They have a modest 30% 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 (5, in this case) are not shown.
For each property being compared, the top bar is S17400 stainless steel and the bottom bar is nickel 690.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 to 440 | |
| 90 |
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 11 to 21 | |
| 3.4 to 34 |
| Fatigue Strength, MPa | 380 to 670 | |
| 180 to 300 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 75 | |
| 79 |
| Shear Strength, MPa | 570 to 830 | |
| 420 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 910 to 1390 | |
| 640 to 990 |
| Tensile Strength: Yield (Proof), MPa | 580 to 1250 | |
| 250 to 760 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 850 | |
| 1010 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1380 |
| Melting Onset (Solidus), °C | 1400 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Conductivity, W/m-K | 17 | |
| 14 |
| Thermal Expansion, µm/m-K | 11 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.3 | |
| 1.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.6 | |
| 1.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 14 | |
| 50 |
| Density, g/cm3 | 7.8 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 8.2 |
| Embodied Energy, MJ/kg | 39 | |
| 120 |
| Embodied Water, L/kg | 130 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 160 | |
| 31 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 4060 | |
| 160 to 1440 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 32 to 49 | |
| 21 to 33 |
| Strength to Weight: Bending, points | 27 to 35 | |
| 20 to 27 |
| Thermal Diffusivity, mm2/s | 4.5 | |
| 3.5 |
| Thermal Shock Resistance, points | 30 to 46 | |
| 16 to 25 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.050 |
| Chromium (Cr), % | 15 to 17 | |
| 27 to 31 |
| Copper (Cu), % | 3.0 to 5.0 | |
| 0 to 0.5 |
| Iron (Fe), % | 70.4 to 78.9 | |
| 7.0 to 11 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 3.0 to 5.0 | |
| 58 to 66 |
| Niobium (Nb), % | 0.15 to 0.45 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |