S45000 Stainless Steel vs. Nickel 684
S45000 stainless steel belongs to the iron alloys classification, while nickel 684 belongs to the nickel alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. 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 S45000 stainless steel and the bottom bar is nickel 684.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 280 to 410 | |
| 310 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 6.8 to 14 | |
| 11 |
| Fatigue Strength, MPa | 330 to 650 | |
| 390 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Reduction in Area, % | 22 to 50 | |
| 17 |
| Shear Modulus, GPa | 76 | |
| 76 |
| Shear Strength, MPa | 590 to 830 | |
| 710 |
| Tensile Strength: Ultimate (UTS), MPa | 980 to 1410 | |
| 1190 |
| Tensile Strength: Yield (Proof), MPa | 580 to 1310 | |
| 800 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 840 | |
| 1000 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1370 |
| Melting Onset (Solidus), °C | 1390 | |
| 1320 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 75 |
| Density, g/cm3 | 7.8 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 10 |
| Embodied Energy, MJ/kg | 39 | |
| 140 |
| Embodied Water, L/kg | 130 | |
| 360 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 94 to 160 | |
| 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 850 to 4400 | |
| 1610 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 35 to 50 | |
| 40 |
| Strength to Weight: Bending, points | 28 to 36 | |
| 30 |
| Thermal Shock Resistance, points | 33 to 47 | |
| 34 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 2.5 to 3.3 |
| Boron (B), % | 0 | |
| 0.0030 to 0.010 |
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.15 |
| Chromium (Cr), % | 14 to 16 | |
| 15 to 20 |
| Cobalt (Co), % | 0 | |
| 13 to 20 |
| Copper (Cu), % | 1.3 to 1.8 | |
| 0 to 0.15 |
| Iron (Fe), % | 72.1 to 79.3 | |
| 0 to 4.0 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 0.75 |
| Molybdenum (Mo), % | 0.5 to 1.0 | |
| 3.0 to 5.0 |
| Nickel (Ni), % | 5.0 to 7.0 | |
| 42.7 to 64 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.75 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 | |
| 2.5 to 3.3 |