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4115 Aluminum vs. Grade 36 Titanium

4115 aluminum belongs to the aluminum alloys classification, while grade 36 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 4115 aluminum and the bottom bar is grade 36 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 1.1 to 11
11
Fatigue Strength, MPa 39 to 76
300
Poisson's Ratio 0.33
0.36
Shear Modulus, GPa 26
39
Shear Strength, MPa 71 to 130
320
Tensile Strength: Ultimate (UTS), MPa 120 to 220
530
Tensile Strength: Yield (Proof), MPa 39 to 190
520

Thermal Properties

Latent Heat of Fusion, J/g 420
370
Maximum Temperature: Mechanical, °C 160
320
Melting Completion (Liquidus), °C 640
2020
Melting Onset (Solidus), °C 590
1950
Specific Heat Capacity, J/kg-K 900
420
Thermal Expansion, µm/m-K 23
8.1

Otherwise Unclassified Properties

Density, g/cm3 2.7
6.3
Embodied Carbon, kg CO2/kg material 8.1
58
Embodied Energy, MJ/kg 150
920
Embodied Water, L/kg 1160
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.1 to 10
59
Resilience: Unit (Modulus of Resilience), kJ/m3 11 to 270
1260
Stiffness to Weight: Axial, points 14
9.3
Stiffness to Weight: Bending, points 50
25
Strength to Weight: Axial, points 12 to 23
23
Strength to Weight: Bending, points 20 to 30
23
Thermal Shock Resistance, points 5.2 to 9.9
45

Alloy Composition

Aluminum (Al), % 94.6 to 97.4
0
Carbon (C), % 0
0 to 0.030
Copper (Cu), % 0.1 to 0.5
0
Hydrogen (H), % 0
0 to 0.0035
Iron (Fe), % 0 to 0.7
0 to 0.030
Magnesium (Mg), % 0.1 to 0.5
0
Manganese (Mn), % 0.6 to 1.2
0
Niobium (Nb), % 0
42 to 47
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.16
Silicon (Si), % 1.8 to 2.2
0
Titanium (Ti), % 0
52.3 to 58
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0
0 to 0.4