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AWS ERTi-1 vs. Grade Ti-Pd18 Titanium

Both AWS ERTi-1 and grade Ti-Pd18 titanium are titanium alloys. They have a moderately high 94% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-1 and the bottom bar is grade Ti-Pd18 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 24
17
Fatigue Strength, MPa 120
350
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 240
710
Tensile Strength: Yield (Proof), MPa 170
540

Thermal Properties

Latent Heat of Fusion, J/g 420
410
Maximum Temperature: Mechanical, °C 320
330
Melting Completion (Liquidus), °C 1670
1640
Melting Onset (Solidus), °C 1620
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 3.6
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
2.7

Otherwise Unclassified Properties

Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 31
41
Embodied Energy, MJ/kg 510
670
Embodied Water, L/kg 110
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
1380
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 15
44
Strength to Weight: Bending, points 19
39
Thermal Diffusivity, mm2/s 8.7
3.3
Thermal Shock Resistance, points 19
52

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0 to 0.030
0 to 0.1
Hydrogen (H), % 0 to 0.0050
0 to 0.015
Iron (Fe), % 0 to 0.080
0 to 0.25
Nickel (Ni), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0.030 to 0.1
0 to 0.15
Palladium (Pd), % 0
0.040 to 0.080
Titanium (Ti), % 99.773 to 99.97
92.5 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4