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EN AC-51400 Aluminum vs. Grade 15 Titanium

EN AC-51400 aluminum belongs to the aluminum alloys classification, while grade 15 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-51400 aluminum and the bottom bar is grade 15 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
110
Elongation at Break, % 3.4
20
Fatigue Strength, MPa 85
290
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
41
Tensile Strength: Ultimate (UTS), MPa 190
540
Tensile Strength: Yield (Proof), MPa 120
430

Thermal Properties

Latent Heat of Fusion, J/g 400
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 640
1660
Melting Onset (Solidus), °C 600
1610
Specific Heat Capacity, J/kg-K 910
540
Thermal Conductivity, W/m-K 110
21
Thermal Expansion, µm/m-K 23
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
6.7

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 9.1
32
Embodied Energy, MJ/kg 150
520
Embodied Water, L/kg 1170
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
100
Resilience: Unit (Modulus of Resilience), kJ/m3 110
870
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
35
Strength to Weight: Axial, points 20
33
Strength to Weight: Bending, points 28
33
Thermal Diffusivity, mm2/s 46
8.4
Thermal Shock Resistance, points 8.6
41

Alloy Composition

Aluminum (Al), % 90.5 to 95.5
0
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 0.55
0 to 0.3
Magnesium (Mg), % 4.5 to 6.5
0
Manganese (Mn), % 0 to 0.45
0
Nickel (Ni), % 0
0.4 to 0.6
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Ruthenium (Ru), % 0
0.040 to 0.060
Silicon (Si), % 0 to 1.5
0
Titanium (Ti), % 0 to 0.2
98.2 to 99.56
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.4