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EN AC-44000 Aluminum vs. Grade 38 Titanium

EN AC-44000 aluminum belongs to the aluminum alloys classification, while grade 38 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 EN AC-44000 aluminum and the bottom bar is grade 38 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 7.3
11
Fatigue Strength, MPa 64
530
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
40
Tensile Strength: Ultimate (UTS), MPa 180
1000
Tensile Strength: Yield (Proof), MPa 86
910

Thermal Properties

Latent Heat of Fusion, J/g 560
410
Maximum Temperature: Mechanical, °C 170
330
Melting Completion (Liquidus), °C 590
1620
Melting Onset (Solidus), °C 590
1570
Specific Heat Capacity, J/kg-K 910
550
Thermal Conductivity, W/m-K 140
8.0
Thermal Expansion, µm/m-K 21
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.5
4.5
Embodied Carbon, kg CO2/kg material 7.8
35
Embodied Energy, MJ/kg 150
560
Embodied Water, L/kg 1070
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
110
Resilience: Unit (Modulus of Resilience), kJ/m3 51
3840
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
35
Strength to Weight: Axial, points 20
62
Strength to Weight: Bending, points 28
49
Thermal Diffusivity, mm2/s 61
3.2
Thermal Shock Resistance, points 8.4
72

Alloy Composition


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Aluminum (Al), % 87.1 to 90
3.5 to 4.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.19
1.2 to 1.8
Magnesium (Mg), % 0 to 0.45
0
Manganese (Mn), % 0 to 0.1
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0.2 to 0.3
Silicon (Si), % 10 to 11.8
0
Titanium (Ti), % 0 to 0.15
89.9 to 93.1
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0 to 0.4