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Grade 1 Titanium vs. EN AC-21100 Aluminum

Grade 1 titanium belongs to the titanium alloys classification, while EN AC-21100 aluminum belongs to the aluminum alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 1 titanium and the bottom bar is EN AC-21100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
100 to 110
Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 28
6.2 to 7.3
Fatigue Strength, MPa 170
79 to 87
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
27
Tensile Strength: Ultimate (UTS), MPa 310
340 to 350
Tensile Strength: Yield (Proof), MPa 220
210 to 240

Thermal Properties

Latent Heat of Fusion, J/g 420
390
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
670
Melting Onset (Solidus), °C 1610
550
Specific Heat Capacity, J/kg-K 540
880
Thermal Conductivity, W/m-K 20
130
Thermal Expansion, µm/m-K 8.8
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
34
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
100

Otherwise Unclassified Properties

Base Metal Price, % relative 37
11
Density, g/cm3 4.5
3.0
Embodied Carbon, kg CO2/kg material 31
8.0
Embodied Energy, MJ/kg 510
150
Embodied Water, L/kg 110
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
19 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 230
300 to 400
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
46
Strength to Weight: Axial, points 19
31 to 33
Strength to Weight: Bending, points 23
36 to 37
Thermal Diffusivity, mm2/s 8.2
48
Thermal Shock Resistance, points 24
15

Alloy Composition

Aluminum (Al), % 0
93.4 to 95.7
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
4.2 to 5.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.19
Manganese (Mn), % 0
0 to 0.55
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Silicon (Si), % 0
0 to 0.18
Titanium (Ti), % 99.095 to 100
0.15 to 0.3
Zinc (Zn), % 0
0 to 0.070
Residuals, % 0
0 to 0.1