SAE-AISI 4340M Steel vs. EN 1.4869 Casting Alloy
SAE-AISI 4340M steel belongs to the iron alloys classification, while EN 1.4869 casting alloy belongs to the nickel alloys. They have a modest 23% 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 (8, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 4340M steel and the bottom bar is EN 1.4869 casting alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 210 |
| Elongation at Break, % | 6.0 | |
| 5.7 |
| Fatigue Strength, MPa | 690 | |
| 130 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 72 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 2340 | |
| 540 |
| Tensile Strength: Yield (Proof), MPa | 1240 | |
| 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 330 |
| Maximum Temperature: Mechanical, °C | 430 | |
| 1200 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1450 |
| Melting Onset (Solidus), °C | 1400 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 460 |
| Thermal Conductivity, W/m-K | 38 | |
| 10 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.9 | |
| 70 |
| Density, g/cm3 | 7.8 | |
| 8.5 |
| Embodied Carbon, kg CO2/kg material | 1.9 | |
| 7.7 |
| Embodied Energy, MJ/kg | 26 | |
| 110 |
| Embodied Water, L/kg | 55 | |
| 300 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 120 | |
| 26 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 4120 | |
| 230 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 84 | |
| 18 |
| Strength to Weight: Bending, points | 51 | |
| 17 |
| Thermal Diffusivity, mm2/s | 10 | |
| 2.6 |
| Thermal Shock Resistance, points | 70 | |
| 14 |
Alloy Composition
| Carbon (C), % | 0.38 to 0.43 | |
| 0.45 to 0.55 |
| Chromium (Cr), % | 0.7 to 1.0 | |
| 24 to 26 |
| Cobalt (Co), % | 0 | |
| 14 to 16 |
| Iron (Fe), % | 93.3 to 94.8 | |
| 11.4 to 23.6 |
| Manganese (Mn), % | 0.65 to 0.9 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0.35 to 0.45 | |
| 0 |
| Nickel (Ni), % | 1.7 to 2.0 | |
| 33 to 37 |
| Phosphorus (P), % | 0 to 0.012 | |
| 0 to 0.040 |
| Silicon (Si), % | 1.5 to 1.8 | |
| 1.0 to 2.0 |
| Sulfur (S), % | 0 to 0.012 | |
| 0 to 0.030 |
| Tungsten (W), % | 0 | |
| 4.0 to 6.0 |
| Vanadium (V), % | 0.050 to 0.1 | |
| 0 |