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Grade 1 Titanium vs. 4115 Aluminum

Grade 1 titanium belongs to the titanium alloys classification, while 4115 aluminum belongs to the aluminum alloys. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is grade 1 titanium and the bottom bar is 4115 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
38 to 68
Elastic (Young's, Tensile) Modulus, GPa 110
70
Elongation at Break, % 28
1.1 to 11
Fatigue Strength, MPa 170
39 to 76
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
26
Shear Strength, MPa 200
71 to 130
Tensile Strength: Ultimate (UTS), MPa 310
120 to 220
Tensile Strength: Yield (Proof), MPa 220
39 to 190

Thermal Properties

Latent Heat of Fusion, J/g 420
420
Maximum Temperature: Mechanical, °C 320
160
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1610
590
Specific Heat Capacity, J/kg-K 540
900
Thermal Conductivity, W/m-K 20
160
Thermal Expansion, µm/m-K 8.8
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
41
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
140

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 4.5
2.7
Embodied Carbon, kg CO2/kg material 31
8.1
Embodied Energy, MJ/kg 510
150
Embodied Water, L/kg 110
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
2.1 to 10
Resilience: Unit (Modulus of Resilience), kJ/m3 230
11 to 270
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
50
Strength to Weight: Axial, points 19
12 to 23
Strength to Weight: Bending, points 23
20 to 30
Thermal Diffusivity, mm2/s 8.2
66
Thermal Shock Resistance, points 24
5.2 to 9.9

Alloy Composition

Aluminum (Al), % 0
94.6 to 97.4
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0.1 to 0.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.7
Magnesium (Mg), % 0
0.1 to 0.5
Manganese (Mn), % 0
0.6 to 1.2
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Silicon (Si), % 0
1.8 to 2.2
Titanium (Ti), % 99.095 to 100
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15