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AWS ERTi-12 vs. Grade Ti-Pd8A Titanium

Both AWS ERTi-12 and grade Ti-Pd8A 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-12 and the bottom bar is grade Ti-Pd8A titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 12
13
Fatigue Strength, MPa 200
260
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
40
Tensile Strength: Ultimate (UTS), MPa 480
500
Tensile Strength: Yield (Proof), MPa 340
430

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
21
Thermal Expansion, µm/m-K 8.7
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
6.9

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
65
Resilience: Unit (Modulus of Resilience), kJ/m3 550
880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 30
31
Strength to Weight: Bending, points 30
31
Thermal Diffusivity, mm2/s 8.7
8.6
Thermal Shock Resistance, points 37
39

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.1
Hydrogen (H), % 0 to 0.0080
0 to 0.015
Iron (Fe), % 0 to 0.15
0 to 0.25
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0.060 to 0.090
0 to 0.050
Nitrogen (N), % 0 to 0.015
0
Oxygen (O), % 0.080 to 0.16
0 to 0.4
Palladium (Pd), % 0
0.12 to 0.3
Titanium (Ti), % 99.147 to 99.66
98.8 to 99.9
Residuals, % 0
0 to 0.4