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EN AC-44200 Aluminum vs. Grade 31 Titanium

EN AC-44200 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-44200 aluminum and the bottom bar is grade 31 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
110
Elongation at Break, % 6.2
20
Fatigue Strength, MPa 63
300
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 180
510
Tensile Strength: Yield (Proof), MPa 86
450

Thermal Properties

Latent Heat of Fusion, J/g 570
420
Maximum Temperature: Mechanical, °C 170
320
Melting Completion (Liquidus), °C 590
1660
Melting Onset (Solidus), °C 580
1610
Specific Heat Capacity, J/kg-K 910
540
Thermal Conductivity, W/m-K 130
21
Thermal Expansion, µm/m-K 21
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
6.9

Otherwise Unclassified Properties

Density, g/cm3 2.5
4.5
Embodied Carbon, kg CO2/kg material 7.7
36
Embodied Energy, MJ/kg 140
600
Embodied Water, L/kg 1050
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1
99
Resilience: Unit (Modulus of Resilience), kJ/m3 51
940
Stiffness to Weight: Axial, points 16
13
Stiffness to Weight: Bending, points 55
35
Strength to Weight: Axial, points 20
32
Strength to Weight: Bending, points 28
32
Thermal Diffusivity, mm2/s 59
8.5
Thermal Shock Resistance, points 8.4
39

Alloy Composition

Aluminum (Al), % 85.2 to 89.5
0
Carbon (C), % 0
0 to 0.080
Cobalt (Co), % 0
0.2 to 0.8
Copper (Cu), % 0 to 0.050
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.55
0 to 0.3
Manganese (Mn), % 0 to 0.35
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 0.15
97.9 to 99.76
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0
0 to 0.4