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5070 Aluminum vs. Grade 38 Titanium

5070 aluminum belongs to the aluminum alloys classification, while grade 38 titanium belongs to the titanium alloys. 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 5070 aluminum and the bottom bar is grade 38 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 20
11
Fatigue Strength, MPa 150
530
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Shear Strength, MPa 190
600
Tensile Strength: Ultimate (UTS), MPa 300
1000
Tensile Strength: Yield (Proof), MPa 140
910

Thermal Properties

Latent Heat of Fusion, J/g 390
410
Maximum Temperature: Mechanical, °C 190
330
Melting Completion (Liquidus), °C 640
1620
Melting Onset (Solidus), °C 550
1570
Specific Heat Capacity, J/kg-K 900
550
Thermal Conductivity, W/m-K 130
8.0
Thermal Expansion, µm/m-K 24
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 100
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 8.8
35
Embodied Energy, MJ/kg 150
560
Embodied Water, L/kg 1170
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150
3840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
35
Strength to Weight: Axial, points 31
62
Strength to Weight: Bending, points 37
49
Thermal Diffusivity, mm2/s 53
3.2
Thermal Shock Resistance, points 14
72

Alloy Composition


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Aluminum (Al), % 92.4 to 95.7
3.5 to 4.5
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.4
1.2 to 1.8
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0.4 to 0.8
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0.2 to 0.3
Silicon (Si), % 0 to 0.25
0
Titanium (Ti), % 0 to 0.15
89.9 to 93.1
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 0.4 to 0.8
0
Residuals, % 0 to 0.15
0 to 0.4