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Titanium 6-7 vs. 4115 Aluminum

Titanium 6-7 belongs to the titanium alloys classification, while 4115 aluminum belongs to the aluminum alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is titanium 6-7 and the bottom bar is 4115 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
70
Elongation at Break, % 11
1.1 to 11
Fatigue Strength, MPa 530
39 to 76
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 45
26
Shear Strength, MPa 610
71 to 130
Tensile Strength: Ultimate (UTS), MPa 1020
120 to 220
Tensile Strength: Yield (Proof), MPa 900
39 to 190

Thermal Properties

Latent Heat of Fusion, J/g 410
420
Maximum Temperature: Mechanical, °C 300
160
Melting Completion (Liquidus), °C 1700
640
Melting Onset (Solidus), °C 1650
590
Specific Heat Capacity, J/kg-K 520
900
Thermal Expansion, µm/m-K 9.3
23

Otherwise Unclassified Properties

Base Metal Price, % relative 75
9.5
Density, g/cm3 5.1
2.7
Embodied Carbon, kg CO2/kg material 34
8.1
Embodied Energy, MJ/kg 540
150
Embodied Water, L/kg 190
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
2.1 to 10
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
11 to 270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 32
50
Strength to Weight: Axial, points 56
12 to 23
Strength to Weight: Bending, points 44
20 to 30
Thermal Shock Resistance, points 66
5.2 to 9.9

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
94.6 to 97.4
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0.1 to 0.5
Hydrogen (H), % 0 to 0.0090
0
Iron (Fe), % 0 to 0.25
0 to 0.7
Magnesium (Mg), % 0
0.1 to 0.5
Manganese (Mn), % 0
0.6 to 1.2
Molybdenum (Mo), % 6.5 to 7.5
0
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Silicon (Si), % 0
1.8 to 2.2
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15