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EN AC-43300 Aluminum vs. Titanium 6-7

EN AC-43300 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-43300 aluminum and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
120
Elongation at Break, % 3.4 to 6.7
11
Fatigue Strength, MPa 76 to 77
530
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
45
Tensile Strength: Ultimate (UTS), MPa 280 to 290
1020
Tensile Strength: Yield (Proof), MPa 210 to 230
900

Thermal Properties

Latent Heat of Fusion, J/g 540
410
Maximum Temperature: Mechanical, °C 170
300
Melting Completion (Liquidus), °C 600
1700
Melting Onset (Solidus), °C 590
1650
Specific Heat Capacity, J/kg-K 910
520
Thermal Expansion, µm/m-K 22
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 7.9
34
Embodied Energy, MJ/kg 150
540
Embodied Water, L/kg 1080
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 17
110
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
3460
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 54
32
Strength to Weight: Axial, points 31 to 32
56
Strength to Weight: Bending, points 37 to 38
44
Thermal Shock Resistance, points 13 to 14
66

Alloy Composition

Aluminum (Al), % 88.9 to 90.8
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 0 to 0.19
0 to 0.25
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.1
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), % 9.0 to 10
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0 to 0.15
84.9 to 88
Zinc (Zn), % 0 to 0.070
0
Residuals, % 0 to 0.1
0