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4343 Aluminum vs. Grade 7 Titanium

4343 aluminum belongs to the aluminum alloys classification, while grade 7 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is 4343 aluminum and the bottom bar is grade 7 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 4.4
24
Fatigue Strength, MPa 45
250
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
38
Shear Strength, MPa 64
270
Tensile Strength: Ultimate (UTS), MPa 110
420
Tensile Strength: Yield (Proof), MPa 62
340

Thermal Properties

Latent Heat of Fusion, J/g 510
420
Maximum Temperature: Mechanical, °C 160
320
Melting Completion (Liquidus), °C 620
1660
Melting Onset (Solidus), °C 580
1610
Specific Heat Capacity, J/kg-K 900
540
Thermal Conductivity, W/m-K 180
22
Thermal Expansion, µm/m-K 22
9.2

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 150
7.2

Otherwise Unclassified Properties

Density, g/cm3 2.6
4.5
Embodied Carbon, kg CO2/kg material 7.9
47
Embodied Energy, MJ/kg 150
800
Embodied Water, L/kg 1100
470

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.1
95
Resilience: Unit (Modulus of Resilience), kJ/m3 27
560
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
35
Strength to Weight: Axial, points 12
26
Strength to Weight: Bending, points 20
28
Thermal Diffusivity, mm2/s 77
8.9
Thermal Shock Resistance, points 5.2
31

Alloy Composition

Aluminum (Al), % 90.3 to 93.2
0
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.8
0 to 0.3
Manganese (Mn), % 0 to 0.1
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.12 to 0.25
Silicon (Si), % 6.8 to 8.2
0
Titanium (Ti), % 0
98.7 to 99.88
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0
0 to 0.4