AWS ERTi-7 vs. Titanium 6-6-2
Both AWS ERTi-7 and titanium 6-6-2 are titanium alloys. They have 85% of their average alloy composition in common. There are 27 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 AWS ERTi-7 and the bottom bar is titanium 6-6-2.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 120 |
| Elongation at Break, % | 20 | |
| 6.7 to 9.0 |
| Fatigue Strength, MPa | 190 | |
| 590 to 670 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 40 | |
| 44 |
| Tensile Strength: Ultimate (UTS), MPa | 340 | |
| 1140 to 1370 |
| Tensile Strength: Yield (Proof), MPa | 280 | |
| 1040 to 1230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 420 | |
| 400 |
| Maximum Temperature: Mechanical, °C | 320 | |
| 310 |
| Melting Completion (Liquidus), °C | 1670 | |
| 1610 |
| Melting Onset (Solidus), °C | 1620 | |
| 1560 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 540 |
| Thermal Conductivity, W/m-K | 21 | |
| 5.5 |
| Thermal Expansion, µm/m-K | 8.7 | |
| 9.4 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.6 | |
| 1.1 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.3 | |
| 2.1 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.5 | |
| 4.8 |
| Embodied Carbon, kg CO2/kg material | 47 | |
| 29 |
| Embodied Energy, MJ/kg | 800 | |
| 470 |
| Embodied Water, L/kg | 470 | |
| 200 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 64 | |
| 89 to 99 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 35 | |
| 34 |
| Strength to Weight: Axial, points | 21 | |
| 66 to 79 |
| Strength to Weight: Bending, points | 24 | |
| 50 to 57 |
| Thermal Diffusivity, mm2/s | 8.8 | |
| 2.1 |
| Thermal Shock Resistance, points | 26 | |
| 75 to 90 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 5.0 to 6.0 |
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.050 |
| Copper (Cu), % | 0 | |
| 0.35 to 1.0 |
| Hydrogen (H), % | 0 to 0.0080 | |
| 0 to 0.015 |
| Iron (Fe), % | 0 to 0.12 | |
| 0.35 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 5.0 to 6.0 |
| Nitrogen (N), % | 0 to 0.015 | |
| 0 to 0.040 |
| Oxygen (O), % | 0.080 to 0.16 | |
| 0 to 0.2 |
| Palladium (Pd), % | 0.12 to 0.25 | |
| 0 |
| Tin (Sn), % | 0 | |
| 1.5 to 2.5 |
| Titanium (Ti), % | 99.417 to 99.8 | |
| 82.8 to 87.8 |
| Residuals, % | 0 | |
| 0 to 0.4 |