Grade 24 Titanium vs. SAE-AISI 4620 Steel
Grade 24 titanium belongs to the titanium alloys classification, while SAE-AISI 4620 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.
For each property being compared, the top bar is grade 24 titanium and the bottom bar is SAE-AISI 4620 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 190 |
| Elongation at Break, % | 11 | |
| 16 to 27 |
| Fatigue Strength, MPa | 550 | |
| 260 to 360 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 40 | |
| 73 |
| Shear Strength, MPa | 610 | |
| 320 to 420 |
| Tensile Strength: Ultimate (UTS), MPa | 1010 | |
| 490 to 680 |
| Tensile Strength: Yield (Proof), MPa | 940 | |
| 350 to 550 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 340 | |
| 410 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1460 |
| Melting Onset (Solidus), °C | 1560 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 470 |
| Thermal Conductivity, W/m-K | 7.1 | |
| 47 |
| Thermal Expansion, µm/m-K | 9.6 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.0 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.0 | |
| 8.4 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.5 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 43 | |
| 1.6 |
| Embodied Energy, MJ/kg | 710 | |
| 22 |
| Embodied Water, L/kg | 310 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 100 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 4160 | |
| 330 to 800 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 35 | |
| 24 |
| Strength to Weight: Axial, points | 63 | |
| 17 to 24 |
| Strength to Weight: Bending, points | 50 | |
| 18 to 22 |
| Thermal Diffusivity, mm2/s | 2.9 | |
| 13 |
| Thermal Shock Resistance, points | 72 | |
| 15 to 20 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.8 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0.17 to 0.22 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.4 | |
| 96.4 to 97.4 |
| Manganese (Mn), % | 0 | |
| 0.45 to 0.65 |
| Molybdenum (Mo), % | 0 | |
| 0.2 to 0.3 |
| Nickel (Ni), % | 0 | |
| 1.7 to 2.0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 |
| Palladium (Pd), % | 0.040 to 0.080 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 | |
| 0 to 0.040 |
| Titanium (Ti), % | 87.5 to 91 | |
| 0 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |