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308.0 Aluminum vs. Grade 30 Titanium

308.0 aluminum belongs to the aluminum alloys classification, while grade 30 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 308.0 aluminum and the bottom bar is grade 30 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
110
Elongation at Break, % 2.0
23
Fatigue Strength, MPa 89
250
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
41
Shear Strength, MPa 150
240
Tensile Strength: Ultimate (UTS), MPa 190
390
Tensile Strength: Yield (Proof), MPa 110
350

Thermal Properties

Latent Heat of Fusion, J/g 470
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 620
1660
Melting Onset (Solidus), °C 540
1610
Specific Heat Capacity, J/kg-K 870
540
Thermal Conductivity, W/m-K 140
21
Thermal Expansion, µm/m-K 20
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
6.9

Otherwise Unclassified Properties

Density, g/cm3 2.9
4.5
Embodied Carbon, kg CO2/kg material 7.7
36
Embodied Energy, MJ/kg 140
600
Embodied Water, L/kg 1080
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.3
86
Resilience: Unit (Modulus of Resilience), kJ/m3 83
590
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 47
35
Strength to Weight: Axial, points 18
24
Strength to Weight: Bending, points 25
26
Thermal Diffusivity, mm2/s 55
8.6
Thermal Shock Resistance, points 9.2
30

Alloy Composition

Aluminum (Al), % 85.7 to 91
0
Carbon (C), % 0
0 to 0.080
Cobalt (Co), % 0
0.2 to 0.8
Copper (Cu), % 4.0 to 5.0
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 1.0
0 to 0.3
Magnesium (Mg), % 0 to 0.1
0
Manganese (Mn), % 0 to 0.5
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 5.0 to 6.0
0
Titanium (Ti), % 0 to 0.25
98 to 99.76
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0
0 to 0.4