SAE-AISI H21 Steel vs. EN 2.4654 Nickel
SAE-AISI H21 steel belongs to the iron alloys classification, while EN 2.4654 nickel belongs to the nickel alloys. There are 21 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI H21 steel and the bottom bar is EN 2.4654 nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 720 to 1790 | |
| 1250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 320 |
| Melting Completion (Liquidus), °C | 1630 | |
| 1390 |
| Melting Onset (Solidus), °C | 1580 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 460 |
| Thermal Conductivity, W/m-K | 27 | |
| 13 |
| Thermal Expansion, µm/m-K | 11 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 75 |
| Density, g/cm3 | 8.5 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 4.5 | |
| 10 |
| Embodied Energy, MJ/kg | 68 | |
| 150 |
| Embodied Water, L/kg | 72 | |
| 340 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 23 |
| Strength to Weight: Axial, points | 23 to 58 | |
| 42 |
| Strength to Weight: Bending, points | 21 to 38 | |
| 31 |
| Thermal Diffusivity, mm2/s | 7.1 | |
| 3.3 |
| Thermal Shock Resistance, points | 24 to 59 | |
| 37 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 1.2 to 1.6 |
| Boron (B), % | 0 | |
| 0.0030 to 0.010 |
| Carbon (C), % | 0.28 to 0.36 | |
| 0.020 to 0.1 |
| Chromium (Cr), % | 3.0 to 3.8 | |
| 18 to 21 |
| Cobalt (Co), % | 0 | |
| 12 to 15 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 to 0.1 |
| Iron (Fe), % | 87.6 to 93.8 | |
| 0 to 2.0 |
| Manganese (Mn), % | 0.15 to 0.4 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 3.5 to 5.0 |
| Nickel (Ni), % | 0 to 0.3 | |
| 50.6 to 62.5 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.015 |
| Silicon (Si), % | 0.15 to 0.5 | |
| 0 to 0.15 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 | |
| 2.8 to 3.3 |
| Tungsten (W), % | 8.5 to 10 | |
| 0 |
| Vanadium (V), % | 0.3 to 0.6 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0.020 to 0.080 |