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EN AC-51500 Aluminum vs. Grade 23 Titanium

EN AC-51500 aluminum belongs to the aluminum alloys classification, while grade 23 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN AC-51500 aluminum and the bottom bar is grade 23 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 5.6
6.7 to 11
Fatigue Strength, MPa 120
470 to 500
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 280
930 to 940
Tensile Strength: Yield (Proof), MPa 160
850 to 870

Thermal Properties

Latent Heat of Fusion, J/g 430
410
Maximum Temperature: Mechanical, °C 170
340
Melting Completion (Liquidus), °C 630
1610
Melting Onset (Solidus), °C 590
1560
Specific Heat Capacity, J/kg-K 910
560
Thermal Conductivity, W/m-K 120
7.1
Thermal Expansion, µm/m-K 23
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 88
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.6
4.4
Embodied Carbon, kg CO2/kg material 9.0
38
Embodied Energy, MJ/kg 150
610
Embodied Water, L/kg 1150
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
61 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 190
3430 to 3560
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 52
35
Strength to Weight: Axial, points 29
58 to 59
Strength to Weight: Bending, points 36
48
Thermal Diffusivity, mm2/s 49
2.9
Thermal Shock Resistance, points 13
67 to 68

Alloy Composition

Aluminum (Al), % 89.8 to 93.1
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.013
Iron (Fe), % 0 to 0.25
0 to 0.25
Magnesium (Mg), % 4.7 to 6.0
0
Manganese (Mn), % 0.4 to 0.8
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.13
Silicon (Si), % 1.8 to 2.6
0
Titanium (Ti), % 0 to 0.25
88.1 to 91
Vanadium (V), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0
0 to 0.4