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Grade Ti-Pd18 Titanium vs. AWS BVAu-8

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while AWS BVAu-8 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (16, 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 AWS BVAu-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Poisson's Ratio 0.32
0.42
Shear Modulus, GPa 40
36
Tensile Strength: Ultimate (UTS), MPa 710
140

Thermal Properties

Latent Heat of Fusion, J/g 410
71
Melting Completion (Liquidus), °C 1640
1240
Melting Onset (Solidus), °C 1590
1200
Specific Heat Capacity, J/kg-K 550
140
Thermal Expansion, µm/m-K 9.1
14

Otherwise Unclassified Properties

Density, g/cm3 4.5
19

Common Calculations

Stiffness to Weight: Axial, points 13
3.0
Stiffness to Weight: Bending, points 35
8.3
Strength to Weight: Axial, points 44
2.1
Strength to Weight: Bending, points 39
3.2
Thermal Shock Resistance, points 52
7.1

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0 to 0.1
0 to 0.0050
Gold (Au), % 0
91 to 93
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0
Lead (Pb), % 0
0 to 0.0020
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
7.0 to 9.0
Phosphorus (P), % 0
0 to 0.0020
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.4
0