Nickel 684 vs. EN 1.7380 Steel
Nickel 684 belongs to the nickel alloys classification, while EN 1.7380 steel belongs to the iron alloys. There are 27 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 nickel 684 and the bottom bar is EN 1.7380 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 310 | |
| 160 to 170 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 11 | |
| 19 to 20 |
| Fatigue Strength, MPa | 390 | |
| 200 to 230 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 74 |
| Shear Strength, MPa | 710 | |
| 330 to 350 |
| Tensile Strength: Ultimate (UTS), MPa | 1190 | |
| 540 to 550 |
| Tensile Strength: Yield (Proof), MPa | 800 | |
| 290 to 330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 260 |
| Maximum Temperature: Mechanical, °C | 1000 | |
| 460 |
| Melting Completion (Liquidus), °C | 1370 | |
| 1470 |
| Melting Onset (Solidus), °C | 1320 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 3.8 |
| Density, g/cm3 | 8.3 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 1.8 |
| Embodied Energy, MJ/kg | 140 | |
| 23 |
| Embodied Water, L/kg | 360 | |
| 59 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 87 to 98 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1610 | |
| 230 to 280 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 40 | |
| 19 to 20 |
| Strength to Weight: Bending, points | 30 | |
| 19 |
| 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 | |
| 0.080 to 0.14 |
| Chromium (Cr), % | 15 to 20 | |
| 2.0 to 2.5 |
| Cobalt (Co), % | 13 to 20 | |
| 0 |
| Copper (Cu), % | 0 to 0.15 | |
| 0 to 0.3 |
| Iron (Fe), % | 0 to 4.0 | |
| 94.6 to 96.6 |
| Manganese (Mn), % | 0 to 0.75 | |
| 0.4 to 0.8 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 0.9 to 1.1 |
| Nickel (Ni), % | 42.7 to 64 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.012 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.010 |
| Titanium (Ti), % | 2.5 to 3.3 | |
| 0 |