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EN AC-51100 Aluminum vs. Grade 26 Titanium

EN AC-51100 aluminum belongs to the aluminum alloys classification, while grade 26 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-51100 aluminum and the bottom bar is grade 26 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 4.5
23
Fatigue Strength, MPa 58
250
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 160
390
Tensile Strength: Yield (Proof), MPa 80
350

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 620
1610
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 23
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 8.7
33
Embodied Energy, MJ/kg 150
530
Embodied Water, L/kg 1180
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.0
85
Resilience: Unit (Modulus of Resilience), kJ/m3 47
580
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
35
Strength to Weight: Axial, points 17
24
Strength to Weight: Bending, points 25
26
Thermal Diffusivity, mm2/s 53
8.6
Thermal Shock Resistance, points 7.3
28

Alloy Composition

Aluminum (Al), % 94.5 to 97.5
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), % 2.5 to 3.5
0
Manganese (Mn), % 0 to 0.45
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0 to 0.55
0
Titanium (Ti), % 0 to 0.2
98.8 to 99.92
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.4