Grade 38 Titanium vs. ACI-ASTM CG6MMN Steel
Grade 38 titanium belongs to the titanium alloys classification, while ACI-ASTM CG6MMN steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is grade 38 titanium and the bottom bar is ACI-ASTM CG6MMN steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 11 | |
| 34 |
| Fatigue Strength, MPa | 530 | |
| 260 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Shear Modulus, GPa | 40 | |
| 79 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 | |
| 670 |
| Tensile Strength: Yield (Proof), MPa | 910 | |
| 320 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 300 |
| Maximum Temperature: Mechanical, °C | 330 | |
| 1080 |
| Melting Completion (Liquidus), °C | 1620 | |
| 1420 |
| Melting Onset (Solidus), °C | 1570 | |
| 1380 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 480 |
| Thermal Expansion, µm/m-K | 9.3 | |
| 17 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 36 | |
| 22 |
| Density, g/cm3 | 4.5 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 35 | |
| 4.8 |
| Embodied Energy, MJ/kg | 560 | |
| 68 |
| Embodied Water, L/kg | 160 | |
| 180 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 190 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3840 | |
| 260 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 25 |
| Strength to Weight: Axial, points | 62 | |
| 24 |
| Strength to Weight: Bending, points | 49 | |
| 22 |
| Thermal Shock Resistance, points | 72 | |
| 14 |
Alloy Composition
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| Aluminum (Al), % | 3.5 to 4.5 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.060 |
| Chromium (Cr), % | 0 | |
| 20.5 to 23.5 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 1.2 to 1.8 | |
| 51.9 to 62.1 |
| Manganese (Mn), % | 0 | |
| 4.0 to 6.0 |
| Molybdenum (Mo), % | 0 | |
| 1.5 to 3.0 |
| Nickel (Ni), % | 0 | |
| 11.5 to 13.5 |
| Niobium (Nb), % | 0 | |
| 0.1 to 0.3 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0.2 to 0.4 |
| Oxygen (O), % | 0.2 to 0.3 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Titanium (Ti), % | 89.9 to 93.1 | |
| 0 |
| Vanadium (V), % | 2.0 to 3.0 | |
| 0.1 to 0.3 |
| Residuals, % | 0 to 0.4 | |
| 0 |