Grade Ti-Pd8A Titanium vs. Grade Ti-Pd18 Titanium
Both grade Ti-Pd8A titanium and grade Ti-Pd18 titanium are titanium alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 95% of their average alloy composition in common.
For each property being compared, the top bar is grade Ti-Pd8A titanium and the bottom bar is grade Ti-Pd18 titanium.
Metric UnitsUS Customary Units
Mechanical Properties
Brinell Hardness | 200 | |
320 |
Elastic (Young's, Tensile) Modulus, GPa | 110 | |
110 |
Elongation at Break, % | 13 | |
17 |
Fatigue Strength, MPa | 260 | |
350 |
Poisson's Ratio | 0.32 | |
0.32 |
Rockwell C Hardness | 21 | |
34 |
Shear Modulus, GPa | 40 | |
40 |
Tensile Strength: Ultimate (UTS), MPa | 500 | |
710 |
Tensile Strength: Yield (Proof), MPa | 430 | |
540 |
Thermal Properties
Latent Heat of Fusion, J/g | 420 | |
410 |
Maximum Temperature: Mechanical, °C | 320 | |
330 |
Melting Completion (Liquidus), °C | 1660 | |
1640 |
Melting Onset (Solidus), °C | 1610 | |
1590 |
Specific Heat Capacity, J/kg-K | 540 | |
550 |
Thermal Conductivity, W/m-K | 21 | |
8.2 |
Thermal Expansion, µm/m-K | 8.7 | |
9.1 |
Electrical Properties
Electrical Conductivity: Equal Volume, % IACS | 3.5 | |
1.4 |
Electrical Conductivity: Equal Weight (Specific), % IACS | 6.9 | |
2.7 |
Otherwise Unclassified Properties
Density, g/cm3 | 4.5 | |
4.5 |
Embodied Carbon, kg CO2/kg material | 49 | |
41 |
Embodied Energy, MJ/kg | 840 | |
670 |
Embodied Water, L/kg | 520 | |
270 |
Common Calculations
Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 65 | |
110 |
Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 | |
1380 |
Stiffness to Weight: Axial, points | 13 | |
13 |
Stiffness to Weight: Bending, points | 35 | |
35 |
Strength to Weight: Axial, points | 31 | |
44 |
Strength to Weight: Bending, points | 31 | |
39 |
Thermal Diffusivity, mm2/s | 8.6 | |
3.3 |
Thermal Shock Resistance, points | 39 | |
52 |
Alloy Composition
Aluminum (Al), % | 0 | |
2.5 to 3.5 |
Carbon (C), % | 0 to 0.1 | |
0 to 0.1 |
Hydrogen (H), % | 0 to 0.015 | |
0 to 0.015 |
Iron (Fe), % | 0 to 0.25 | |
0 to 0.25 |
Nickel (Ni), % | 0 to 0.050 | |
0 to 0.050 |
Oxygen (O), % | 0 to 0.4 | |
0 to 0.15 |
Palladium (Pd), % | 0.12 to 0.3 | |
0.040 to 0.080 |
Titanium (Ti), % | 98.8 to 99.9 | |
92.5 to 95.5 |
Vanadium (V), % | 0 | |
2.0 to 3.0 |
Residuals, % | 0 | |
0 to 0.4 |