50Cr-50Ni Alloy vs. SAE-AISI 4340M Steel
50Cr-50Ni alloy belongs to the otherwise unclassified metals classification, while SAE-AISI 4340M steel belongs to the iron alloys. There are 21 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 50Cr-50Ni alloy and the bottom bar is SAE-AISI 4340M steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 190 |
| Elongation at Break, % | 5.7 | |
| 6.0 |
| Poisson's Ratio | 0.26 | |
| 0.29 |
| Shear Modulus, GPa | 84 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 620 | |
| 2340 |
| Tensile Strength: Yield (Proof), MPa | 390 | |
| 1240 |
Thermal Properties
| Latent Heat of Fusion, J/g | 350 | |
| 280 |
| Specific Heat Capacity, J/kg-K | 490 | |
| 480 |
| Thermal Expansion, µm/m-K | 15 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 50 | |
| 3.9 |
| Density, g/cm3 | 8.0 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 7.9 | |
| 1.9 |
| Embodied Energy, MJ/kg | 110 | |
| 26 |
| Embodied Water, L/kg | 350 | |
| 55 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 | |
| 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 350 | |
| 4120 |
| Stiffness to Weight: Axial, points | 15 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 21 | |
| 84 |
| Strength to Weight: Bending, points | 20 | |
| 51 |
| Thermal Shock Resistance, points | 14 | |
| 70 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.25 | |
| 0 |
| Carbon (C), % | 0 to 0.1 | |
| 0.38 to 0.43 |
| Chromium (Cr), % | 48 to 52 | |
| 0.7 to 1.0 |
| Iron (Fe), % | 0 to 1.0 | |
| 93.3 to 94.8 |
| Manganese (Mn), % | 0 to 0.3 | |
| 0.65 to 0.9 |
| Molybdenum (Mo), % | 0 | |
| 0.35 to 0.45 |
| Nickel (Ni), % | 44.5 to 52 | |
| 1.7 to 2.0 |
| Nitrogen (N), % | 0 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.012 |
| Silicon (Si), % | 0 to 1.0 | |
| 1.5 to 1.8 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.012 |
| Titanium (Ti), % | 0 to 0.5 | |
| 0 |
| Vanadium (V), % | 0 | |
| 0.050 to 0.1 |