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Grade Ti-Pd18 Titanium vs. 5657 Aluminum

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while 5657 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-Pd18 titanium and the bottom bar is 5657 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 320
40 to 50
Elastic (Young's, Tensile) Modulus, GPa 110
68
Elongation at Break, % 17
6.6 to 15
Fatigue Strength, MPa 350
74 to 88
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
26
Tensile Strength: Ultimate (UTS), MPa 710
150 to 200
Tensile Strength: Yield (Proof), MPa 540
140 to 170

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 330
180
Melting Completion (Liquidus), °C 1640
660
Melting Onset (Solidus), °C 1590
640
Specific Heat Capacity, J/kg-K 550
900
Thermal Conductivity, W/m-K 8.2
210
Thermal Expansion, µm/m-K 9.1
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
54
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
180

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.7
Embodied Carbon, kg CO2/kg material 41
8.4
Embodied Energy, MJ/kg 670
160
Embodied Water, L/kg 270
1200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
9.7 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
140 to 200
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 44
15 to 20
Strength to Weight: Bending, points 39
23 to 28
Thermal Diffusivity, mm2/s 3.3
84
Thermal Shock Resistance, points 52
6.7 to 8.6

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
98.5 to 99.4
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.1
Gallium (Ga), % 0
0 to 0.030
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 0.1
Magnesium (Mg), % 0
0.6 to 1.0
Manganese (Mn), % 0
0 to 0.030
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
0 to 0.080
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0 to 0.050
Zinc (Zn), % 0
0 to 0.050
Residuals, % 0
0 to 0.050