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5056 Aluminum vs. R56406 Titanium

5056 aluminum belongs to the aluminum alloys classification, while R56406 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 5056 aluminum and the bottom bar is R56406 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
110
Elongation at Break, % 4.9 to 31
9.1
Fatigue Strength, MPa 140 to 200
480
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 25
40
Tensile Strength: Ultimate (UTS), MPa 290 to 460
980
Tensile Strength: Yield (Proof), MPa 150 to 410
850

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 190
340
Melting Completion (Liquidus), °C 640
1610
Melting Onset (Solidus), °C 570
1560
Specific Heat Capacity, J/kg-K 910
560
Thermal Conductivity, W/m-K 130
7.1
Thermal Expansion, µm/m-K 24
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
36
Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 9.0
38
Embodied Energy, MJ/kg 150
610
Embodied Water, L/kg 1180
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12 to 140
85
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 1220
3420
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
35
Strength to Weight: Axial, points 30 to 48
61
Strength to Weight: Bending, points 36 to 50
49
Thermal Diffusivity, mm2/s 53
2.8
Thermal Shock Resistance, points 13 to 20
69

Alloy Composition

Aluminum (Al), % 93 to 95.4
5.5 to 6.8
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0.050 to 0.2
0
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.4
0 to 0.3
Magnesium (Mg), % 4.5 to 5.6
0
Manganese (Mn), % 0.050 to 0.2
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 0.3
0
Titanium (Ti), % 0
88.1 to 91
Vanadium (V), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.15
0