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EN AC-44500 Aluminum vs. Titanium 6-7

EN AC-44500 aluminum belongs to the aluminum alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is EN AC-44500 aluminum and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
120
Elongation at Break, % 1.1
11
Fatigue Strength, MPa 110
530
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
45
Tensile Strength: Ultimate (UTS), MPa 270
1020
Tensile Strength: Yield (Proof), MPa 160
900

Thermal Properties

Latent Heat of Fusion, J/g 570
410
Maximum Temperature: Mechanical, °C 170
300
Melting Completion (Liquidus), °C 590
1700
Melting Onset (Solidus), °C 580
1650
Specific Heat Capacity, J/kg-K 900
520
Thermal Expansion, µm/m-K 21
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
75
Density, g/cm3 2.5
5.1
Embodied Carbon, kg CO2/kg material 7.7
34
Embodied Energy, MJ/kg 140
540
Embodied Water, L/kg 1050
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6
110
Resilience: Unit (Modulus of Resilience), kJ/m3 180
3460
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
32
Strength to Weight: Axial, points 29
56
Strength to Weight: Bending, points 36
44
Thermal Shock Resistance, points 13
66

Alloy Composition

Aluminum (Al), % 83.7 to 89.5
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.2
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 0 to 1.0
0 to 0.25
Magnesium (Mg), % 0 to 0.4
0
Manganese (Mn), % 0 to 0.55
0
Molybdenum (Mo), % 0
6.5 to 7.5
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 10.5 to 13.5
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0 to 0.15
84.9 to 88
Zinc (Zn), % 0 to 0.3
0
Residuals, % 0 to 0.25
0