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Grade Ti-Pd17 Titanium vs. 5251 Aluminum

Grade Ti-Pd17 titanium belongs to the titanium alloys classification, while 5251 aluminum belongs to the aluminum alloys. There are 29 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 grade Ti-Pd17 titanium and the bottom bar is 5251 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200
44 to 79
Elastic (Young's, Tensile) Modulus, GPa 110
68
Elongation at Break, % 22
2.0 to 19
Fatigue Strength, MPa 140
59 to 110
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 270
180 to 280
Tensile Strength: Yield (Proof), MPa 190
67 to 250

Thermal Properties

Latent Heat of Fusion, J/g 420
400
Maximum Temperature: Mechanical, °C 320
180
Melting Completion (Liquidus), °C 1660
650
Melting Onset (Solidus), °C 1610
610
Specific Heat Capacity, J/kg-K 540
900
Thermal Conductivity, W/m-K 21
150
Thermal Expansion, µm/m-K 8.7
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
37
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
120

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.7
Embodied Carbon, kg CO2/kg material 36
8.5
Embodied Energy, MJ/kg 600
150
Embodied Water, L/kg 230
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 55
5.4 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 180
33 to 450
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 17
18 to 29
Strength to Weight: Bending, points 21
26 to 35
Thermal Diffusivity, mm2/s 8.8
61
Thermal Shock Resistance, points 21
7.9 to 13

Alloy Composition

Aluminum (Al), % 0
95.5 to 98.2
Carbon (C), % 0 to 0.1
0
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0
0 to 0.15
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.5
Magnesium (Mg), % 0
1.7 to 2.4
Manganese (Mn), % 0
0.1 to 0.5
Nickel (Ni), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
0 to 0.4
Titanium (Ti), % 98.9 to 99.96
0 to 0.15
Zinc (Zn), % 0
0 to 0.15
Residuals, % 0
0 to 0.15