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Grade 1 Titanium vs. EN AC-45400 Aluminum

Grade 1 titanium belongs to the titanium alloys classification, while EN AC-45400 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-45400 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
86
Elastic (Young's, Tensile) Modulus, GPa 110
72
Elongation at Break, % 28
6.7
Fatigue Strength, MPa 170
55
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 39
27
Tensile Strength: Ultimate (UTS), MPa 310
260
Tensile Strength: Yield (Proof), MPa 220
130

Thermal Properties

Latent Heat of Fusion, J/g 420
470
Maximum Temperature: Mechanical, °C 320
170
Melting Completion (Liquidus), °C 1660
630
Melting Onset (Solidus), °C 1610
560
Specific Heat Capacity, J/kg-K 540
880
Thermal Conductivity, W/m-K 20
140
Thermal Expansion, µm/m-K 8.8
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
30
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
95

Otherwise Unclassified Properties

Base Metal Price, % relative 37
10
Density, g/cm3 4.5
2.8
Embodied Carbon, kg CO2/kg material 31
7.8
Embodied Energy, MJ/kg 510
150
Embodied Water, L/kg 110
1100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
14
Resilience: Unit (Modulus of Resilience), kJ/m3 230
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
49
Strength to Weight: Axial, points 19
25
Strength to Weight: Bending, points 23
32
Thermal Diffusivity, mm2/s 8.2
54
Thermal Shock Resistance, points 24
12

Alloy Composition

Aluminum (Al), % 0
88.4 to 92.9
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
2.6 to 3.6
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0 to 0.6
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.55
Nickel (Ni), % 0
0 to 0.1
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Silicon (Si), % 0
4.5 to 6.0
Tin (Sn), % 0
0 to 0.050
Titanium (Ti), % 99.095 to 100
0 to 0.25
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15