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EN AC-51500 Aluminum vs. Grade 9 Titanium

EN AC-51500 aluminum belongs to the aluminum alloys classification, while grade 9 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 9 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 5.6
11 to 17
Fatigue Strength, MPa 120
330 to 480
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 280
700 to 960
Tensile Strength: Yield (Proof), MPa 160
540 to 830

Thermal Properties

Latent Heat of Fusion, J/g 430
410
Maximum Temperature: Mechanical, °C 170
330
Melting Completion (Liquidus), °C 630
1640
Melting Onset (Solidus), °C 590
1590
Specific Heat Capacity, J/kg-K 910
550
Thermal Conductivity, W/m-K 120
8.1
Thermal Expansion, µm/m-K 23
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 26
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 88
2.7

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
36
Embodied Energy, MJ/kg 150
580
Embodied Water, L/kg 1150
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 190
1380 to 3220
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 52
35
Strength to Weight: Axial, points 29
43 to 60
Strength to Weight: Bending, points 36
39 to 48
Thermal Diffusivity, mm2/s 49
3.3
Thermal Shock Resistance, points 13
52 to 71

Alloy Composition

Aluminum (Al), % 89.8 to 93.1
2.5 to 3.5
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 0.25
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 0.15
Silicon (Si), % 1.8 to 2.6
0
Titanium (Ti), % 0 to 0.25
92.6 to 95.5
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0
0 to 0.4