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EN AC-48000 Aluminum vs. Grade 31 Titanium

EN AC-48000 aluminum belongs to the aluminum alloys classification, while grade 31 titanium belongs to the titanium alloys. There are 28 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 EN AC-48000 aluminum and the bottom bar is grade 31 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
110
Elongation at Break, % 1.0
20
Fatigue Strength, MPa 85 to 86
300
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 28
41
Tensile Strength: Ultimate (UTS), MPa 220 to 310
510
Tensile Strength: Yield (Proof), MPa 210 to 270
450

Thermal Properties

Latent Heat of Fusion, J/g 570
420
Maximum Temperature: Mechanical, °C 190
320
Melting Completion (Liquidus), °C 600
1660
Melting Onset (Solidus), °C 560
1610
Specific Heat Capacity, J/kg-K 890
540
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 21
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 110
6.9

Otherwise Unclassified Properties

Density, g/cm3 2.7
4.5
Embodied Carbon, kg CO2/kg material 7.9
36
Embodied Energy, MJ/kg 140
600
Embodied Water, L/kg 1030
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 3.0
99
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 510
940
Stiffness to Weight: Axial, points 15
13
Stiffness to Weight: Bending, points 53
35
Strength to Weight: Axial, points 23 to 33
32
Strength to Weight: Bending, points 31 to 39
32
Thermal Diffusivity, mm2/s 54
8.5
Thermal Shock Resistance, points 10 to 15
39

Alloy Composition

Aluminum (Al), % 80.4 to 87.2
0
Carbon (C), % 0
0 to 0.080
Cobalt (Co), % 0
0.2 to 0.8
Copper (Cu), % 0.8 to 1.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.7
0 to 0.3
Magnesium (Mg), % 0.8 to 1.5
0
Manganese (Mn), % 0 to 0.35
0
Nickel (Ni), % 0.7 to 1.3
0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.35
Palladium (Pd), % 0
0.040 to 0.080
Silicon (Si), % 10.5 to 13.5
0
Titanium (Ti), % 0 to 0.25
97.9 to 99.76
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0
0 to 0.4