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Grade Ti-Pd18 Titanium vs. ASTM B540 Palladium

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while ASTM B540 palladium belongs to the otherwise unclassified metals. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is grade Ti-Pd18 titanium and the bottom bar is ASTM B540 palladium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 17
1.1 to 14
Fatigue Strength, MPa 350
350
Poisson's Ratio 0.32
0.38
Shear Modulus, GPa 40
39
Tensile Strength: Ultimate (UTS), MPa 710
830 to 1240
Tensile Strength: Yield (Proof), MPa 540
620 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 410
140
Melting Completion (Liquidus), °C 1640
1220
Melting Onset (Solidus), °C 1590
1020
Specific Heat Capacity, J/kg-K 550
240
Thermal Expansion, µm/m-K 9.1
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
4.9 to 5.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
3.5 to 3.9

Otherwise Unclassified Properties

Density, g/cm3 4.5
13

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
13 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
1790 to 4660
Stiffness to Weight: Axial, points 13
4.7
Stiffness to Weight: Bending, points 35
12
Strength to Weight: Axial, points 44
18 to 27
Strength to Weight: Bending, points 39
15 to 20
Thermal Shock Resistance, points 52
41 to 61

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
13.5 to 14.5
Gold (Au), % 0
9.5 to 10.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
34 to 36
Platinum (Pt), % 0
9.5 to 10.5
Silver (Ag), % 0
29 to 31
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
0.8 to 1.2
Residuals, % 0
0 to 0.3