Nickel 684 vs. EN 1.1158 Steel
Nickel 684 belongs to the nickel alloys classification, while EN 1.1158 steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is nickel 684 and the bottom bar is EN 1.1158 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 310 | |
| 140 to 150 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 11 | |
| 23 to 24 |
| Fatigue Strength, MPa | 390 | |
| 170 to 220 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 73 |
| Shear Strength, MPa | 710 | |
| 300 to 320 |
| Tensile Strength: Ultimate (UTS), MPa | 1190 | |
| 470 to 500 |
| Tensile Strength: Yield (Proof), MPa | 800 | |
| 240 to 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 1000 | |
| 400 |
| Melting Completion (Liquidus), °C | 1370 | |
| 1460 |
| Melting Onset (Solidus), °C | 1320 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 2.1 |
| Density, g/cm3 | 8.3 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 1.4 |
| Embodied Energy, MJ/kg | 140 | |
| 19 |
| Embodied Water, L/kg | 360 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 89 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1610 | |
| 150 to 250 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 40 | |
| 17 to 18 |
| Strength to Weight: Bending, points | 30 | |
| 17 to 18 |
| Thermal Shock Resistance, points | 34 | |
| 15 to 16 |
Alloy Composition
| Aluminum (Al), % | 2.5 to 3.3 | |
| 0 |
| Boron (B), % | 0.0030 to 0.010 | |
| 0 |
| Carbon (C), % | 0 to 0.15 | |
| 0.22 to 0.29 |
| Chromium (Cr), % | 15 to 20 | |
| 0 to 0.4 |
| Cobalt (Co), % | 13 to 20 | |
| 0 |
| Copper (Cu), % | 0 to 0.15 | |
| 0 |
| Iron (Fe), % | 0 to 4.0 | |
| 97.6 to 99.38 |
| Manganese (Mn), % | 0 to 0.75 | |
| 0.4 to 0.7 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 0 to 0.1 |
| Nickel (Ni), % | 42.7 to 64 | |
| 0 to 0.4 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.035 |
| Titanium (Ti), % | 2.5 to 3.3 | |
| 0 |