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EN AC-44100 Aluminum vs. Grade 27 Titanium

EN AC-44100 aluminum belongs to the aluminum alloys classification, while grade 27 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-44100 aluminum and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
110
Elongation at Break, % 4.9
27
Fatigue Strength, MPa 64
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 180
270
Tensile Strength: Yield (Proof), MPa 87
230

Thermal Properties

Latent Heat of Fusion, J/g 570
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 590
1660
Melting Onset (Solidus), °C 580
1610
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 21
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 120
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.5
4.5
Embodied Carbon, kg CO2/kg material 7.7
33
Embodied Energy, MJ/kg 140
530
Embodied Water, L/kg 1050
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 7.1
70
Resilience: Unit (Modulus of Resilience), kJ/m3 53
240
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
35
Strength to Weight: Axial, points 19
17
Strength to Weight: Bending, points 27
21
Thermal Diffusivity, mm2/s 58
8.8
Thermal Shock Resistance, points 8.2
21

Alloy Composition

Aluminum (Al), % 84.4 to 89.5
0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.15
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.65
0 to 0.2
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0 to 0.1
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 10.5 to 13.5
0
Titanium (Ti), % 0 to 0.2
99 to 99.92
Zinc (Zn), % 0 to 0.15
0
Residuals, % 0
0 to 0.4