Grade 20 Titanium vs. C68800 Brass
Grade 20 titanium belongs to the titanium alloys classification, while C68800 brass belongs to the copper alloys. There are 24 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 grade 20 titanium and the bottom bar is C68800 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 110 |
| Elongation at Break, % | 5.7 to 17 | |
| 2.0 to 36 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Shear Modulus, GPa | 47 | |
| 41 |
| Shear Strength, MPa | 560 to 740 | |
| 380 to 510 |
| Tensile Strength: Ultimate (UTS), MPa | 900 to 1270 | |
| 570 to 890 |
| Tensile Strength: Yield (Proof), MPa | 850 to 1190 | |
| 390 to 790 |
Thermal Properties
| Latent Heat of Fusion, J/g | 400 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 370 | |
| 160 |
| Melting Completion (Liquidus), °C | 1660 | |
| 960 |
| Melting Onset (Solidus), °C | 1600 | |
| 950 |
| Specific Heat Capacity, J/kg-K | 520 | |
| 400 |
| Thermal Expansion, µm/m-K | 9.6 | |
| 19 |
Otherwise Unclassified Properties
| Density, g/cm3 | 5.0 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 52 | |
| 2.8 |
| Embodied Energy, MJ/kg | 860 | |
| 48 |
| Embodied Water, L/kg | 350 | |
| 350 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 71 to 150 | |
| 16 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 2940 to 5760 | |
| 710 to 2860 |
| Stiffness to Weight: Axial, points | 14 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 33 | |
| 19 |
| Strength to Weight: Axial, points | 50 to 70 | |
| 19 to 30 |
| Strength to Weight: Bending, points | 41 to 52 | |
| 19 to 25 |
| Thermal Shock Resistance, points | 55 to 77 | |
| 19 to 30 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 4.0 | |
| 3.0 to 3.8 |
| Carbon (C), % | 0 to 0.050 | |
| 0 |
| Chromium (Cr), % | 5.5 to 6.5 | |
| 0 |
| Cobalt (Co), % | 0 | |
| 0.25 to 0.55 |
| Copper (Cu), % | 0 | |
| 70.8 to 75.5 |
| Hydrogen (H), % | 0 to 0.020 | |
| 0 |
| Iron (Fe), % | 0 to 0.3 | |
| 0 to 0.2 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Molybdenum (Mo), % | 3.5 to 4.5 | |
| 0 |
| Nitrogen (N), % | 0 to 0.030 | |
| 0 |
| Oxygen (O), % | 0 to 0.12 | |
| 0 |
| Palladium (Pd), % | 0.040 to 0.080 | |
| 0 |
| Titanium (Ti), % | 71 to 77 | |
| 0 |
| Vanadium (V), % | 7.5 to 8.5 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 21.3 to 24.1 |
| Zirconium (Zr), % | 3.5 to 4.5 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |