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Grade Ti-Pd8A Titanium vs. ASTM B817 Type I

Both grade Ti-Pd8A titanium and ASTM B817 type I are titanium alloys. They have 90% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd8A titanium and the bottom bar is ASTM B817 type I.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
100
Elongation at Break, % 13
4.0 to 13
Fatigue Strength, MPa 260
360 to 520
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 500
770 to 960
Tensile Strength: Yield (Proof), MPa 430
700 to 860

Thermal Properties

Latent Heat of Fusion, J/g 420
410
Maximum Temperature: Mechanical, °C 320
340
Melting Completion (Liquidus), °C 1660
1600
Melting Onset (Solidus), °C 1610
1550
Specific Heat Capacity, J/kg-K 540
560
Thermal Conductivity, W/m-K 21
7.1
Thermal Expansion, µm/m-K 8.7
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.5
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
2.0

Otherwise Unclassified Properties

Density, g/cm3 4.5
4.4
Embodied Carbon, kg CO2/kg material 49
38
Embodied Energy, MJ/kg 840
610
Embodied Water, L/kg 520
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
30 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 880
2310 to 3540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 31
48 to 60
Strength to Weight: Bending, points 31
42 to 49
Thermal Diffusivity, mm2/s 8.6
2.9
Thermal Shock Resistance, points 39
54 to 68

Alloy Composition


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Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0 to 0.1
0 to 0.1
Chlorine (Cl), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.25
0 to 0.4
Nickel (Ni), % 0 to 0.050
0
Nitrogen (N), % 0
0 to 0.040
Oxygen (O), % 0 to 0.4
0 to 0.3
Palladium (Pd), % 0.12 to 0.3
0
Silicon (Si), % 0
0 to 0.1
Sodium (Na), % 0
0 to 0.2
Titanium (Ti), % 98.8 to 99.9
87 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0 to 0.4
0 to 0.4