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EN AC-48000 Aluminum vs. Grade 21 Titanium

EN AC-48000 aluminum belongs to the aluminum alloys classification, while grade 21 titanium belongs to the titanium alloys. There are 27 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 EN AC-48000 aluminum and the bottom bar is grade 21 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
140
Elongation at Break, % 1.0
9.0 to 17
Fatigue Strength, MPa 85 to 86
550 to 660
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 28
51
Tensile Strength: Ultimate (UTS), MPa 220 to 310
890 to 1340
Tensile Strength: Yield (Proof), MPa 210 to 270
870 to 1170

Thermal Properties

Latent Heat of Fusion, J/g 570
410
Maximum Temperature: Mechanical, °C 190
310
Melting Completion (Liquidus), °C 600
1740
Melting Onset (Solidus), °C 560
1690
Specific Heat Capacity, J/kg-K 890
500
Thermal Conductivity, W/m-K 130
7.5
Thermal Expansion, µm/m-K 21
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 10
60
Density, g/cm3 2.7
5.4
Embodied Carbon, kg CO2/kg material 7.9
32
Embodied Energy, MJ/kg 140
490
Embodied Water, L/kg 1030
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.2 to 3.0
110 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 510
2760 to 5010
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
32
Strength to Weight: Axial, points 23 to 33
46 to 69
Strength to Weight: Bending, points 31 to 39
38 to 50
Thermal Diffusivity, mm2/s 54
2.8
Thermal Shock Resistance, points 10 to 15
66 to 100

Alloy Composition

Aluminum (Al), % 80.4 to 87.2
2.5 to 3.5
Carbon (C), % 0
0 to 0.050
Copper (Cu), % 0.8 to 1.5
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.7
0 to 0.4
Magnesium (Mg), % 0.8 to 1.5
0
Manganese (Mn), % 0 to 0.35
0
Molybdenum (Mo), % 0
14 to 16
Nickel (Ni), % 0.7 to 1.3
0
Niobium (Nb), % 0
2.2 to 3.2
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.17
Silicon (Si), % 10.5 to 13.5
0.15 to 0.25
Titanium (Ti), % 0 to 0.25
76 to 81.2
Zinc (Zn), % 0 to 0.35
0
Residuals, % 0
0 to 0.4

Comparable Variants