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EN AC-71100 Aluminum vs. Titanium 6-7

EN AC-71100 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 (5, in this case) are not shown.

For each property being compared, the top bar is EN AC-71100 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 150
530
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 27
45
Tensile Strength: Ultimate (UTS), MPa 260
1020
Tensile Strength: Yield (Proof), MPa 230
900

Thermal Properties

Latent Heat of Fusion, J/g 490
410
Maximum Temperature: Mechanical, °C 170
300
Melting Completion (Liquidus), °C 580
1700
Melting Onset (Solidus), °C 520
1650
Specific Heat Capacity, J/kg-K 860
520
Thermal Expansion, µm/m-K 22
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
75
Density, g/cm3 2.9
5.1
Embodied Carbon, kg CO2/kg material 7.4
34
Embodied Energy, MJ/kg 140
540
Embodied Water, L/kg 1010
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.8
110
Resilience: Unit (Modulus of Resilience), kJ/m3 360
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
32
Strength to Weight: Axial, points 25
56
Strength to Weight: Bending, points 31
44
Thermal Shock Resistance, points 12
66

Alloy Composition

Aluminum (Al), % 78.7 to 83.3
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 0 to 0.3
0 to 0.25
Magnesium (Mg), % 0.2 to 0.5
0
Manganese (Mn), % 0 to 0.15
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), % 7.5 to 9.5
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0 to 0.15
84.9 to 88
Zinc (Zn), % 9.0 to 10.5
0
Residuals, % 0 to 0.15
0