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356.0 Aluminum vs. Grade 25 Titanium

356.0 aluminum belongs to the aluminum alloys classification, while grade 25 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is 356.0 aluminum and the bottom bar is grade 25 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 2.0 to 3.8
11
Fatigue Strength, MPa 55 to 75
550
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
40
Shear Strength, MPa 140 to 190
600
Tensile Strength: Ultimate (UTS), MPa 160 to 240
1000
Tensile Strength: Yield (Proof), MPa 100 to 190
940

Thermal Properties

Latent Heat of Fusion, J/g 500
410
Maximum Temperature: Mechanical, °C 170
340
Melting Completion (Liquidus), °C 620
1610
Melting Onset (Solidus), °C 570
1560
Specific Heat Capacity, J/kg-K 900
560
Thermal Conductivity, W/m-K 150 to 170
7.1
Thermal Expansion, µm/m-K 21
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40 to 43
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140 to 150
2.0

Otherwise Unclassified Properties

Density, g/cm3 2.6
4.5
Embodied Carbon, kg CO2/kg material 8.0
43
Embodied Energy, MJ/kg 150
700
Embodied Water, L/kg 1110
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.2 to 8.2
110
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 250
4220
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
35
Strength to Weight: Axial, points 17 to 26
62
Strength to Weight: Bending, points 25 to 33
50
Thermal Diffusivity, mm2/s 64 to 71
2.8
Thermal Shock Resistance, points 7.6 to 11
71

Alloy Composition

Aluminum (Al), % 90.1 to 93.3
5.5 to 6.8
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.013
Iron (Fe), % 0 to 0.6
0 to 0.4
Magnesium (Mg), % 0.2 to 0.45
0
Manganese (Mn), % 0 to 0.35
0
Nickel (Ni), % 0
0.3 to 0.8
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 6.5 to 7.5
0
Titanium (Ti), % 0 to 0.25
86.7 to 90.6
Vanadium (V), % 0
3.5 to 4.5
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0
0 to 0.4