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EN AC-51500 Aluminum vs. Grade 27 Titanium

EN AC-51500 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-51500 aluminum and the bottom bar is grade 27 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 5.6
27
Fatigue Strength, MPa 120
170
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 280
270
Tensile Strength: Yield (Proof), MPa 160
230

Thermal Properties

Latent Heat of Fusion, J/g 430
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 630
1660
Melting Onset (Solidus), °C 590
1610
Specific Heat Capacity, J/kg-K 910
540
Thermal Conductivity, W/m-K 120
21
Thermal Expansion, µm/m-K 23
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 88
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 2.6
4.5
Embodied Carbon, kg CO2/kg material 9.0
33
Embodied Energy, MJ/kg 150
530
Embodied Water, L/kg 1150
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
70
Resilience: Unit (Modulus of Resilience), kJ/m3 190
240
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 52
35
Strength to Weight: Axial, points 29
17
Strength to Weight: Bending, points 36
21
Thermal Diffusivity, mm2/s 49
8.8
Thermal Shock Resistance, points 13
21

Alloy Composition

Aluminum (Al), % 89.8 to 93.1
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 0.25
0 to 0.2
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 0.18
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 1.8 to 2.6
0
Titanium (Ti), % 0 to 0.25
99 to 99.92
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0
0 to 0.4