Titanium 6-6-2 vs. SAE-AISI 8617 Steel
Titanium 6-6-2 belongs to the titanium alloys classification, while SAE-AISI 8617 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 titanium 6-6-2 and the bottom bar is SAE-AISI 8617 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 190 |
| Elongation at Break, % | 6.7 to 9.0 | |
| 25 |
| Fatigue Strength, MPa | 590 to 670 | |
| 230 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 44 | |
| 73 |
| Shear Strength, MPa | 670 to 800 | |
| 300 |
| Tensile Strength: Ultimate (UTS), MPa | 1140 to 1370 | |
| 470 |
| Tensile Strength: Yield (Proof), MPa | 1040 to 1230 | |
| 320 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 310 | |
| 410 |
| Melting Completion (Liquidus), °C | 1610 | |
| 1460 |
| Melting Onset (Solidus), °C | 1560 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 470 |
| Thermal Conductivity, W/m-K | 5.5 | |
| 43 |
| Thermal Expansion, µm/m-K | 9.4 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.1 | |
| 7.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 2.1 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 40 | |
| 2.6 |
| Density, g/cm3 | 4.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 29 | |
| 1.5 |
| Embodied Energy, MJ/kg | 470 | |
| 20 |
| Embodied Water, L/kg | 200 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 89 to 99 | |
| 110 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 34 | |
| 24 |
| Strength to Weight: Axial, points | 66 to 79 | |
| 17 |
| Strength to Weight: Bending, points | 50 to 57 | |
| 17 |
| Thermal Diffusivity, mm2/s | 2.1 | |
| 12 |
| Thermal Shock Resistance, points | 75 to 90 | |
| 15 |
Alloy Composition
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| Aluminum (Al), % | 5.0 to 6.0 | |
| 0 |
| Carbon (C), % | 0 to 0.050 | |
| 0.15 to 0.2 |
| Chromium (Cr), % | 0 | |
| 0.4 to 0.6 |
| Copper (Cu), % | 0.35 to 1.0 | |
| 0 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0.35 to 1.0 | |
| 96.9 to 98.1 |
| Manganese (Mn), % | 0 | |
| 0.7 to 0.9 |
| Molybdenum (Mo), % | 5.0 to 6.0 | |
| 0.15 to 0.25 |
| Nickel (Ni), % | 0 | |
| 0.4 to 0.7 |
| Nitrogen (N), % | 0 to 0.040 | |
| 0 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 | |
| 0 to 0.040 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 82.8 to 87.8 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 |