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Grade 20 Titanium vs. EN AC-42200 Aluminum

Grade 20 titanium belongs to the titanium alloys classification, while EN AC-42200 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is EN AC-42200 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
70
Elongation at Break, % 5.7 to 17
3.0 to 6.7
Fatigue Strength, MPa 550 to 630
86 to 90
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 47
26
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
320
Tensile Strength: Yield (Proof), MPa 850 to 1190
240 to 260

Thermal Properties

Latent Heat of Fusion, J/g 400
500
Maximum Temperature: Mechanical, °C 370
170
Melting Completion (Liquidus), °C 1660
610
Melting Onset (Solidus), °C 1600
600
Specific Heat Capacity, J/kg-K 520
910
Thermal Expansion, µm/m-K 9.6
22

Otherwise Unclassified Properties

Density, g/cm3 5.0
2.6
Embodied Carbon, kg CO2/kg material 52
8.0
Embodied Energy, MJ/kg 860
150
Embodied Water, L/kg 350
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
9.0 to 20
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
410 to 490
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 33
53
Strength to Weight: Axial, points 50 to 70
34 to 35
Strength to Weight: Bending, points 41 to 52
40 to 41
Thermal Shock Resistance, points 55 to 77
15

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
91 to 93.1
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0
Copper (Cu), % 0
0 to 0.050
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0 to 0.19
Magnesium (Mg), % 0
0.45 to 0.7
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 3.5 to 4.5
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.12
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
6.5 to 7.5
Titanium (Ti), % 71 to 77
0 to 0.25
Vanadium (V), % 7.5 to 8.5
0
Zinc (Zn), % 0
0 to 0.070
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0
0 to 0.1

Comparable Variants