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AWS ERTi-1 vs. Grade Ti-Pd7B Titanium

Both AWS ERTi-1 and grade Ti-Pd7B titanium are titanium alloys. Their average alloy composition is basically identical. 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-Pd7B titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 24
17
Fatigue Strength, MPa 120
200
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 240
390
Tensile Strength: Yield (Proof), MPa 170
310

Thermal Properties

Latent Heat of Fusion, J/g 420
420
Maximum Temperature: Mechanical, °C 320
320
Melting Completion (Liquidus), °C 1670
1660
Melting Onset (Solidus), °C 1620
1610
Specific Heat Capacity, J/kg-K 540
540
Thermal Conductivity, W/m-K 21
22
Thermal Expansion, µm/m-K 8.7
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
7.1

Otherwise Unclassified Properties

Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 31
49
Embodied Energy, MJ/kg 510
840
Embodied Water, L/kg 110
520

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
62
Resilience: Unit (Modulus of Resilience), kJ/m3 140
440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 15
24
Strength to Weight: Bending, points 19
26
Thermal Diffusivity, mm2/s 8.7
8.9
Thermal Shock Resistance, points 19
30

Alloy Composition

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 0.2
Nickel (Ni), % 0
0 to 0.050
Nitrogen (N), % 0 to 0.012
0
Oxygen (O), % 0.030 to 0.1
0 to 0.4
Palladium (Pd), % 0
0.12 to 0.3
Titanium (Ti), % 99.773 to 99.97
98.8 to 99.9
Residuals, % 0
0 to 0.4