Grade 35 Titanium vs. ACI-ASTM CA15M Steel
Grade 35 titanium belongs to the titanium alloys classification, while ACI-ASTM CA15M steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is grade 35 titanium and the bottom bar is ACI-ASTM CA15M steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 200 |
| Elongation at Break, % | 5.6 | |
| 20 |
| Fatigue Strength, MPa | 330 | |
| 330 |
| Poisson's Ratio | 0.32 | |
| 0.28 |
| Reduction in Area, % | 23 | |
| 34 |
| Shear Modulus, GPa | 41 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 | |
| 690 |
| Tensile Strength: Yield (Proof), MPa | 630 | |
| 510 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 270 |
| Maximum Temperature: Mechanical, °C | 320 | |
| 760 |
| Melting Completion (Liquidus), °C | 1630 | |
| 1450 |
| Melting Onset (Solidus), °C | 1580 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 550 | |
| 480 |
| Thermal Conductivity, W/m-K | 7.4 | |
| 27 |
| Thermal Expansion, µm/m-K | 9.3 | |
| 10 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.1 | |
| 3.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.2 | |
| 3.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 7.5 |
| Density, g/cm3 | 4.6 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 33 | |
| 2.1 |
| Embodied Energy, MJ/kg | 530 | |
| 29 |
| Embodied Water, L/kg | 170 | |
| 100 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 49 | |
| 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1830 | |
| 670 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 35 | |
| 25 |
| Strength to Weight: Axial, points | 61 | |
| 25 |
| Strength to Weight: Bending, points | 49 | |
| 22 |
| Thermal Diffusivity, mm2/s | 3.0 | |
| 7.2 |
| Thermal Shock Resistance, points | 70 | |
| 25 |
Alloy Composition
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| Aluminum (Al), % | 4.0 to 5.0 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.15 |
| Chromium (Cr), % | 0 | |
| 11.5 to 14 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0.2 to 0.8 | |
| 82.1 to 88.4 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 1.5 to 2.5 | |
| 0.15 to 1.0 |
| Nickel (Ni), % | 0 | |
| 0 to 1.0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0.2 to 0.4 | |
| 0 to 0.65 |
| Sulfur (S), % | 0 | |
| 0 to 0.040 |
| Titanium (Ti), % | 88.4 to 93 | |
| 0 |
| Vanadium (V), % | 1.1 to 2.1 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |