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Grade 1 Titanium vs. 4343 Aluminum

Grade 1 titanium belongs to the titanium alloys classification, while 4343 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 1 titanium and the bottom bar is 4343 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 28
4.4
Fatigue Strength, MPa 170
45
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
27
Shear Strength, MPa 200
64
Tensile Strength: Ultimate (UTS), MPa 310
110
Tensile Strength: Yield (Proof), MPa 220
62

Thermal Properties

Latent Heat of Fusion, J/g 420
510
Maximum Temperature: Mechanical, °C 320
160
Melting Completion (Liquidus), °C 1660
620
Melting Onset (Solidus), °C 1610
580
Specific Heat Capacity, J/kg-K 540
900
Thermal Conductivity, W/m-K 20
180
Thermal Expansion, µm/m-K 8.8
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
44
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
150

Otherwise Unclassified Properties

Base Metal Price, % relative 37
9.5
Density, g/cm3 4.5
2.6
Embodied Carbon, kg CO2/kg material 31
7.9
Embodied Energy, MJ/kg 510
150
Embodied Water, L/kg 110
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
4.1
Resilience: Unit (Modulus of Resilience), kJ/m3 230
27
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
53
Strength to Weight: Axial, points 19
12
Strength to Weight: Bending, points 23
20
Thermal Diffusivity, mm2/s 8.2
77
Thermal Shock Resistance, points 24
5.2

Alloy Composition

Aluminum (Al), % 0
90.3 to 93.2
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.8
Manganese (Mn), % 0
0 to 0.1
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Silicon (Si), % 0
6.8 to 8.2
Titanium (Ti), % 99.095 to 100
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15