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Grade C-6 Titanium vs. Grade Ti-Pd8A Titanium

Both grade C-6 titanium and grade Ti-Pd8A titanium are titanium alloys. Both are furnished in the as-fabricated (no temper or treatment) condition. They have a moderately high 92% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade C-6 titanium and the bottom bar is grade Ti-Pd8A titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 290
200
Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 9.0
13
Fatigue Strength, MPa 460
260
Poisson's Ratio 0.32
0.32
Rockwell C Hardness 32
21
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 890
500
Tensile Strength: Yield (Proof), MPa 830
430

Thermal Properties

Latent Heat of Fusion, J/g 410
420
Maximum Temperature: Mechanical, °C 310
320
Melting Completion (Liquidus), °C 1580
1660
Melting Onset (Solidus), °C 1530
1610
Specific Heat Capacity, J/kg-K 550
540
Thermal Conductivity, W/m-K 7.8
21
Thermal Expansion, µm/m-K 9.8
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
6.9

Otherwise Unclassified Properties

Density, g/cm3 4.5
4.5
Embodied Carbon, kg CO2/kg material 30
49
Embodied Energy, MJ/kg 480
840
Embodied Water, L/kg 190
520

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78
65
Resilience: Unit (Modulus of Resilience), kJ/m3 3300
880
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 55
31
Strength to Weight: Bending, points 46
31
Thermal Diffusivity, mm2/s 3.2
8.6
Thermal Shock Resistance, points 63
39

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.1
0 to 0.1
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.5
0 to 0.25
Nickel (Ni), % 0 to 0.050
0 to 0.050
Oxygen (O), % 0 to 0.2
0 to 0.4
Palladium (Pd), % 0
0.12 to 0.3
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.7 to 94
98.8 to 99.9
Residuals, % 0
0 to 0.4