SAE-AISI P21 Steel vs. N09777 Nickel
SAE-AISI P21 steel belongs to the iron alloys classification, while N09777 nickel belongs to the nickel alloys. They have 43% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI P21 steel and the bottom bar is N09777 nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 1130 | |
| 580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 300 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1440 |
| Melting Onset (Solidus), °C | 1410 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 460 |
| Thermal Expansion, µm/m-K | 12 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 6.5 | |
| 38 |
| Density, g/cm3 | 7.9 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 2.3 | |
| 7.4 |
| Embodied Energy, MJ/kg | 32 | |
| 100 |
| Embodied Water, L/kg | 62 | |
| 200 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 40 | |
| 20 |
| Strength to Weight: Bending, points | 31 | |
| 19 |
| Thermal Shock Resistance, points | 37 | |
| 16 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.35 |
| Carbon (C), % | 0.18 to 0.22 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0 to 0.5 | |
| 14 to 19 |
| Cobalt (Co), % | 1.1 to 1.3 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 92.1 to 94.2 | |
| 28.5 to 47.5 |
| Manganese (Mn), % | 0.35 to 0.72 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 2.5 to 5.5 |
| Nickel (Ni), % | 3.9 to 4.3 | |
| 34 to 42 |
| Niobium (Nb), % | 0 | |
| 0 to 0.1 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.030 |
| Silicon (Si), % | 0.2 to 0.4 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0 | |
| 2.0 to 3.0 |
| Vanadium (V), % | 0.15 to 0.25 | |
| 0 |