R05240 Alloy vs. SAE-AISI 4620 Steel
R05240 alloy belongs to the otherwise unclassified metals classification, while SAE-AISI 4620 steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is R05240 alloy and the bottom bar is SAE-AISI 4620 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 150 | |
| 190 |
| Elongation at Break, % | 25 | |
| 16 to 27 |
| Poisson's Ratio | 0.36 | |
| 0.29 |
| Shear Modulus, GPa | 57 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 270 | |
| 490 to 680 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 350 to 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 190 | |
| 470 |
| Thermal Expansion, µm/m-K | 6.8 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 14 | |
| 7.9 |
| Embodied Water, L/kg | 460 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 59 | |
| 100 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 90 | |
| 330 to 800 |
| Stiffness to Weight: Axial, points | 6.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 13 | |
| 24 |
| Strength to Weight: Axial, points | 5.4 | |
| 17 to 24 |
| Strength to Weight: Bending, points | 6.8 | |
| 18 to 22 |
| Thermal Shock Resistance, points | 18 | |
| 15 to 20 |
Alloy Composition
| Carbon (C), % | 0 to 0.010 | |
| 0.17 to 0.22 |
| Hydrogen (H), % | 0 to 0.0015 | |
| 0 |
| Iron (Fe), % | 0 to 0.010 | |
| 96.4 to 97.4 |
| Manganese (Mn), % | 0 | |
| 0.45 to 0.65 |
| Molybdenum (Mo), % | 0 to 0.020 | |
| 0.2 to 0.3 |
| Nickel (Ni), % | 0 to 0.010 | |
| 1.7 to 2.0 |
| Niobium (Nb), % | 35 to 42 | |
| 0 |
| Nitrogen (N), % | 0 to 0.010 | |
| 0 |
| Oxygen (O), % | 0 to 0.020 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.0050 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 | |
| 0 to 0.040 |
| Tantalum (Ta), % | 57.9 to 65 | |
| 0 |
| Titanium (Ti), % | 0 to 0.010 | |
| 0 |
| Tungsten (W), % | 0 to 0.050 | |
| 0 |