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Grade Ti-Pd8A Titanium vs. 4045 Aluminum

Grade Ti-Pd8A titanium belongs to the titanium alloys classification, while 4045 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade Ti-Pd8A titanium and the bottom bar is 4045 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 13
2.3
Fatigue Strength, MPa 260
45
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 40
27
Tensile Strength: Ultimate (UTS), MPa 500
120
Tensile Strength: Yield (Proof), MPa 430
64

Thermal Properties

Latent Heat of Fusion, J/g 420
540
Maximum Temperature: Mechanical, °C 320
160
Melting Completion (Liquidus), °C 1660
600
Melting Onset (Solidus), °C 1610
580
Specific Heat Capacity, J/kg-K 540
900
Thermal Conductivity, W/m-K 21
170
Thermal Expansion, µm/m-K 8.7
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.5
45
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
160

Otherwise Unclassified Properties

Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 49
7.8
Embodied Energy, MJ/kg 840
150
Embodied Water, L/kg 520
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 65
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 880
29
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
54
Strength to Weight: Axial, points 31
13
Strength to Weight: Bending, points 31
21
Thermal Diffusivity, mm2/s 8.6
74
Thermal Shock Resistance, points 39
5.7

Alloy Composition

Aluminum (Al), % 0
87.4 to 91
Carbon (C), % 0 to 0.1
0
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0 to 0.8
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.050
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.4
0
Palladium (Pd), % 0.12 to 0.3
0
Silicon (Si), % 0
9.0 to 11
Titanium (Ti), % 98.8 to 99.9
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0 to 0.4
0 to 0.15