Grade 20 Titanium vs. AWS BNi-8
Grade 20 titanium belongs to the titanium alloys classification, while AWS BNi-8 belongs to the nickel alloys. There are 18 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is grade 20 titanium and the bottom bar is AWS BNi-8.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 180 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 47 | |
| 67 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 1270 | |
| 570 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 390 |
| Melting Completion (Liquidus), °C | 1660 | |
| 1010 |
| Melting Onset (Solidus), °C | 1600 | |
| 980 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 480 |
| Thermal Expansion, µm/m-K | 9.6 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 5.0 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 52 | |
| 8.2 |
| Embodied Energy, MJ/kg | 860 | |
| 120 |
| Embodied Water, L/kg | 350 | |
| 220 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 12 |
| Stiffness to Weight: Bending, points | 33 | |
| 24 |
| Strength to Weight: Axial, points | 50 to 70 | |
| 20 |
| Strength to Weight: Bending, points | 41 to 52 | |
| 19 |
| Thermal Shock Resistance, points | 55 to 77 | |
| 17 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 4.0 | |
| 0 to 0.050 |
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.060 |
| Chromium (Cr), % | 5.5 to 6.5 | |
| 0 |
| Cobalt (Co), % | 0 | |
| 0 to 0.1 |
| Copper (Cu), % | 0 | |
| 4.0 to 5.0 |
| Hydrogen (H), % | 0 to 0.020 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 0 |
| Manganese (Mn), % | 0 | |
| 21.5 to 24.5 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 61.6 to 68.5 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.12 | |
| 0 |
| Palladium (Pd), % | 0.040 to 0.080 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.020 |
| Selenium (Se), % | 0 | |
| 0 to 0.0050 |
| Silicon (Si), % | 0 | |
| 6.0 to 8.0 |
| Sulfur (S), % | 0 | |
| 0 to 0.020 |
| Titanium (Ti), % | 71 to 77 | |
| 0 to 0.050 |
| Vanadium (V), % | 7.5 to 8.5 | |
| 0 |
| Zirconium (Zr), % | 3.5 to 4.5 | |
| 0 to 0.050 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |