Titanium 6-7 vs. ASTM Grade HN Steel
Titanium 6-7 belongs to the titanium alloys classification, while ASTM grade HN steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is titanium 6-7 and the bottom bar is ASTM grade HN steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 200 |
| Elongation at Break, % | 11 | |
| 9.0 |
| Poisson's Ratio | 0.33 | |
| 0.28 |
| Shear Modulus, GPa | 45 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 1020 | |
| 500 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 310 |
| Maximum Temperature: Mechanical, °C | 300 | |
| 1080 |
| Melting Completion (Liquidus), °C | 1700 | |
| 1400 |
| Melting Onset (Solidus), °C | 1650 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 480 |
| Thermal Expansion, µm/m-K | 9.3 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 26 |
| Density, g/cm3 | 5.1 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 34 | |
| 4.6 |
| Embodied Energy, MJ/kg | 540 | |
| 66 |
| Embodied Water, L/kg | 190 | |
| 180 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 32 | |
| 25 |
| Strength to Weight: Axial, points | 56 | |
| 17 |
| Strength to Weight: Bending, points | 44 | |
| 18 |
| Thermal Shock Resistance, points | 66 | |
| 11 |
Alloy Composition
| Aluminum (Al), % | 5.5 to 6.5 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0.2 to 0.5 |
| Chromium (Cr), % | 0 | |
| 19 to 23 |
| Hydrogen (H), % | 0 to 0.0090 | |
| 0 |
| Iron (Fe), % | 0 to 0.25 | |
| 44.9 to 57.8 |
| Manganese (Mn), % | 0 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 6.5 to 7.5 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 23 to 27 |
| Niobium (Nb), % | 6.5 to 7.5 | |
| 0 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 2.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.040 |
| Tantalum (Ta), % | 0 to 0.5 | |
| 0 |
| Titanium (Ti), % | 84.9 to 88 | |
| 0 |