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355.0 Aluminum vs. Titanium 6-7

355.0 aluminum belongs to the aluminum alloys classification, while titanium 6-7 belongs to the titanium alloys. There are 26 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 355.0 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, % 1.5 to 2.6
11
Fatigue Strength, MPa 55 to 70
530
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
45
Shear Strength, MPa 150 to 240
610
Tensile Strength: Ultimate (UTS), MPa 200 to 260
1020
Tensile Strength: Yield (Proof), MPa 150 to 190
900

Thermal Properties

Latent Heat of Fusion, J/g 470
410
Maximum Temperature: Mechanical, °C 180
300
Melting Completion (Liquidus), °C 620
1700
Melting Onset (Solidus), °C 560
1650
Specific Heat Capacity, J/kg-K 890
520
Thermal Expansion, µm/m-K 22
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
75
Density, g/cm3 2.7
5.1
Embodied Carbon, kg CO2/kg material 8.0
34
Embodied Energy, MJ/kg 150
540
Embodied Water, L/kg 1120
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.7 to 5.9
110
Resilience: Unit (Modulus of Resilience), kJ/m3 150 to 250
3460
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 51
32
Strength to Weight: Axial, points 20 to 27
56
Strength to Weight: Bending, points 28 to 33
44
Thermal Shock Resistance, points 9.1 to 12
66

Alloy Composition

Aluminum (Al), % 90.3 to 94.1
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 1.0 to 1.5
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 0 to 0.6
0 to 0.25
Magnesium (Mg), % 0.4 to 0.6
0
Manganese (Mn), % 0 to 0.5
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), % 4.5 to 5.5
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0 to 0.25
84.9 to 88
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0 to 0.15
0