SAE-AISI H25 Steel vs. Titanium 15-3-3-3
SAE-AISI H25 steel belongs to the iron alloys classification, while titanium 15-3-3-3 belongs to the titanium alloys. There are 21 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 SAE-AISI H25 steel and the bottom bar is titanium 15-3-3-3.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 100 |
| Poisson's Ratio | 0.29 | |
| 0.33 |
| Shear Modulus, GPa | 79 | |
| 39 |
| Tensile Strength: Ultimate (UTS), MPa | 710 to 1620 | |
| 1120 to 1390 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 390 |
| Melting Completion (Liquidus), °C | 1750 | |
| 1620 |
| Melting Onset (Solidus), °C | 1700 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 420 | |
| 520 |
| Thermal Conductivity, W/m-K | 26 | |
| 8.1 |
| Thermal Expansion, µm/m-K | 12 | |
| 9.8 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 38 | |
| 40 |
| Density, g/cm3 | 9.1 | |
| 4.8 |
| Embodied Carbon, kg CO2/kg material | 6.2 | |
| 59 |
| Embodied Energy, MJ/kg | 93 | |
| 950 |
| Embodied Water, L/kg | 83 | |
| 260 |
Common Calculations
| Stiffness to Weight: Axial, points | 12 | |
| 12 |
| Stiffness to Weight: Bending, points | 22 | |
| 32 |
| Strength to Weight: Axial, points | 22 to 50 | |
| 64 to 80 |
| Strength to Weight: Bending, points | 20 to 34 | |
| 50 to 57 |
| Thermal Diffusivity, mm2/s | 6.7 | |
| 3.2 |
| Thermal Shock Resistance, points | 22 to 49 | |
| 79 to 98 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 2.5 to 3.5 |
| Carbon (C), % | 0.22 to 0.32 | |
| 0 to 0.050 |
| Chromium (Cr), % | 3.8 to 4.5 | |
| 2.5 to 3.5 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.015 |
| Iron (Fe), % | 77.2 to 81.3 | |
| 0 to 0.25 |
| Manganese (Mn), % | 0.15 to 0.4 | |
| 0 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Oxygen (O), % | 0 | |
| 0 to 0.13 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 0.15 to 0.4 | |
| 0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tin (Sn), % | 0 | |
| 2.5 to 3.5 |
| Titanium (Ti), % | 0 | |
| 72.6 to 78.5 |
| Tungsten (W), % | 14 to 16 | |
| 0 |
| Vanadium (V), % | 0.4 to 0.6 | |
| 14 to 16 |
| Residuals, % | 0 | |
| 0 to 0.4 |