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7020 Aluminum vs. Grade Ti-Pd16 Titanium

7020 aluminum belongs to the aluminum alloys classification, while grade Ti-Pd16 titanium belongs to the titanium 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 7020 aluminum and the bottom bar is grade Ti-Pd16 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 45 to 100
180
Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 8.4 to 14
17
Fatigue Strength, MPa 110 to 130
200
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 190 to 390
390
Tensile Strength: Yield (Proof), MPa 120 to 310
310

Thermal Properties

Latent Heat of Fusion, J/g 380
420
Maximum Temperature: Mechanical, °C 210
320
Melting Completion (Liquidus), °C 650
1660
Melting Onset (Solidus), °C 610
1610
Specific Heat Capacity, J/kg-K 880
540
Thermal Conductivity, W/m-K 150
22
Thermal Expansion, µm/m-K 23
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 120
7.1

Otherwise Unclassified Properties

Density, g/cm3 2.9
4.5
Embodied Carbon, kg CO2/kg material 8.3
36
Embodied Energy, MJ/kg 150
600
Embodied Water, L/kg 1150
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23 to 46
62
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 690
440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 47
35
Strength to Weight: Axial, points 18 to 37
24
Strength to Weight: Bending, points 25 to 41
26
Thermal Diffusivity, mm2/s 59
8.9
Thermal Shock Resistance, points 8.3 to 17
30

Alloy Composition

Aluminum (Al), % 91.2 to 94.8
0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0.1 to 0.35
0
Copper (Cu), % 0 to 0.2
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.4
0 to 0.3
Magnesium (Mg), % 1.0 to 1.4
0
Manganese (Mn), % 0.050 to 0.5
0
Nickel (Ni), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 0 to 0.35
0
Titanium (Ti), % 0 to 0.25
98.8 to 99.96
Zinc (Zn), % 4.0 to 5.0
0
Zirconium (Zr), % 0.080 to 0.25
0
Residuals, % 0
0 to 0.4