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EN AC-51400 Aluminum vs. Grade 6 Titanium

EN AC-51400 aluminum belongs to the aluminum alloys classification, while grade 6 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-51400 aluminum and the bottom bar is grade 6 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
100
Elongation at Break, % 3.4
11
Fatigue Strength, MPa 85
290
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
39
Tensile Strength: Ultimate (UTS), MPa 190
890
Tensile Strength: Yield (Proof), MPa 120
840

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 170
310
Melting Completion (Liquidus), °C 640
1580
Melting Onset (Solidus), °C 600
1530
Specific Heat Capacity, J/kg-K 910
550
Thermal Conductivity, W/m-K 110
7.8
Thermal Expansion, µm/m-K 23
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 9.1
30
Embodied Energy, MJ/kg 150
480
Embodied Water, L/kg 1170
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
92
Resilience: Unit (Modulus of Resilience), kJ/m3 110
3390
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
35
Strength to Weight: Axial, points 20
55
Strength to Weight: Bending, points 28
46
Thermal Diffusivity, mm2/s 46
3.2
Thermal Shock Resistance, points 8.6
65

Alloy Composition

Aluminum (Al), % 90.5 to 95.5
4.0 to 6.0
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 0.5
Magnesium (Mg), % 4.5 to 6.5
0
Manganese (Mn), % 0 to 0.45
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 1.5
0
Tin (Sn), % 0
2.0 to 3.0
Titanium (Ti), % 0 to 0.2
89.8 to 94
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.4