N08800 Stainless Steel vs. Nickel 685
N08800 stainless steel belongs to the iron alloys classification, while nickel 685 belongs to the nickel alloys. They have 55% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.
For each property being compared, the top bar is N08800 stainless steel and the bottom bar is nickel 685.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 4.5 to 34 | |
| 17 |
| Fatigue Strength, MPa | 150 to 390 | |
| 470 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 77 |
| Shear Strength, MPa | 340 to 580 | |
| 770 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 1000 | |
| 1250 |
| Tensile Strength: Yield (Proof), MPa | 190 to 830 | |
| 850 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 1100 | |
| 1000 |
| Melting Completion (Liquidus), °C | 1390 | |
| 1380 |
| Melting Onset (Solidus), °C | 1360 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 460 |
| Thermal Conductivity, W/m-K | 12 | |
| 13 |
| Thermal Expansion, µm/m-K | 14 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 30 | |
| 75 |
| Density, g/cm3 | 8.0 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 5.3 | |
| 10 |
| Embodied Energy, MJ/kg | 76 | |
| 140 |
| Embodied Water, L/kg | 200 | |
| 340 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 42 to 160 | |
| 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 96 to 1740 | |
| 1820 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 23 |
| Strength to Weight: Axial, points | 18 to 35 | |
| 42 |
| Strength to Weight: Bending, points | 18 to 28 | |
| 31 |
| Thermal Diffusivity, mm2/s | 3.0 | |
| 3.3 |
| Thermal Shock Resistance, points | 13 to 25 | |
| 37 |
Alloy Composition
| Aluminum (Al), % | 0.15 to 0.6 | |
| 1.2 to 1.6 |
| Boron (B), % | 0 | |
| 0.0030 to 0.010 |
| Carbon (C), % | 0 to 0.1 | |
| 0.030 to 0.1 |
| Chromium (Cr), % | 19 to 23 | |
| 18 to 21 |
| Cobalt (Co), % | 0 | |
| 12 to 15 |
| Copper (Cu), % | 0 to 0.75 | |
| 0 to 0.5 |
| Iron (Fe), % | 39.5 to 50.7 | |
| 0 to 2.0 |
| Manganese (Mn), % | 0 to 1.5 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 3.5 to 5.0 |
| Nickel (Ni), % | 30 to 35 | |
| 49.6 to 62.5 |
| Phosphorus (P), % | 0 to 0.045 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.030 |
| Titanium (Ti), % | 0.15 to 0.6 | |
| 2.8 to 3.3 |
| Zinc (Zn), % | 0 | |
| 0.020 to 0.12 |