EN 1.4378 Stainless Steel vs. Nickel 690
EN 1.4378 stainless steel belongs to the iron alloys classification, while nickel 690 belongs to the nickel alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. 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 EN 1.4378 stainless steel and the bottom bar is nickel 690.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 190 to 340 | |
| 90 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 14 to 34 | |
| 3.4 to 34 |
| Fatigue Strength, MPa | 340 to 550 | |
| 180 to 300 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 77 | |
| 79 |
| Shear Strength, MPa | 510 to 680 | |
| 420 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 760 to 1130 | |
| 640 to 990 |
| Tensile Strength: Yield (Proof), MPa | 430 to 970 | |
| 250 to 760 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 910 | |
| 1010 |
| Melting Completion (Liquidus), °C | 1390 | |
| 1380 |
| Melting Onset (Solidus), °C | 1350 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Expansion, µm/m-K | 17 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 12 | |
| 50 |
| Density, g/cm3 | 7.6 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 8.2 |
| Embodied Energy, MJ/kg | 39 | |
| 120 |
| Embodied Water, L/kg | 150 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 to 220 | |
| 31 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 470 to 2370 | |
| 160 to 1440 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 28 to 41 | |
| 21 to 33 |
| Strength to Weight: Bending, points | 24 to 31 | |
| 20 to 27 |
| Thermal Shock Resistance, points | 16 to 23 | |
| 16 to 25 |
Alloy Composition
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.050 |
| Chromium (Cr), % | 17 to 19 | |
| 27 to 31 |
| Copper (Cu), % | 0 | |
| 0 to 0.5 |
| Iron (Fe), % | 61.2 to 69 | |
| 7.0 to 11 |
| Manganese (Mn), % | 11.5 to 14.5 | |
| 0 to 0.5 |
| Nickel (Ni), % | 2.3 to 3.7 | |
| 58 to 66 |
| Nitrogen (N), % | 0.2 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.060 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |