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EN AC-21200 Aluminum vs. Titanium 6-7

EN AC-21200 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.

For each property being compared, the top bar is EN AC-21200 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, % 3.9 to 6.2
11
Fatigue Strength, MPa 110 to 130
530
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
45
Tensile Strength: Ultimate (UTS), MPa 410 to 440
1020
Tensile Strength: Yield (Proof), MPa 270 to 360
900

Thermal Properties

Latent Heat of Fusion, J/g 390
410
Maximum Temperature: Mechanical, °C 170
300
Melting Completion (Liquidus), °C 660
1700
Melting Onset (Solidus), °C 550
1650
Specific Heat Capacity, J/kg-K 880
520
Thermal Expansion, µm/m-K 23
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 10
75
Density, g/cm3 3.0
5.1
Embodied Carbon, kg CO2/kg material 8.0
34
Embodied Energy, MJ/kg 150
540
Embodied Water, L/kg 1150
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 22
110
Resilience: Unit (Modulus of Resilience), kJ/m3 500 to 930
3460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
32
Strength to Weight: Axial, points 38 to 40
56
Strength to Weight: Bending, points 41 to 43
44
Thermal Shock Resistance, points 18 to 19
66

Alloy Composition

Aluminum (Al), % 93.3 to 95.7
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 4.0 to 5.0
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 0 to 0.2
0 to 0.25
Lead (Pb), % 0 to 0.030
0
Magnesium (Mg), % 0.15 to 0.5
0
Manganese (Mn), % 0.2 to 0.5
0
Molybdenum (Mo), % 0
6.5 to 7.5
Nickel (Ni), % 0 to 0.050
0
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 0.1
0
Tantalum (Ta), % 0
0 to 0.5
Tin (Sn), % 0 to 0.030
0
Titanium (Ti), % 0 to 0.1
84.9 to 88
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.1
0