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EN AC-45100 Aluminum vs. Grade 38 Titanium

EN AC-45100 aluminum belongs to the aluminum alloys classification, while grade 38 titanium belongs to the titanium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN AC-45100 aluminum and the bottom bar is grade 38 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
110
Elongation at Break, % 1.0 to 2.8
11
Fatigue Strength, MPa 82 to 99
530
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
40
Tensile Strength: Ultimate (UTS), MPa 300 to 360
1000
Tensile Strength: Yield (Proof), MPa 210 to 320
910

Thermal Properties

Latent Heat of Fusion, J/g 470
410
Maximum Temperature: Mechanical, °C 170
330
Melting Completion (Liquidus), °C 630
1620
Melting Onset (Solidus), °C 550
1570
Specific Heat Capacity, J/kg-K 890
550
Thermal Conductivity, W/m-K 140
8.0
Thermal Expansion, µm/m-K 22
9.3

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 30
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 95
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 10
36
Density, g/cm3 2.8
4.5
Embodied Carbon, kg CO2/kg material 7.9
35
Embodied Energy, MJ/kg 150
560
Embodied Water, L/kg 1100
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5 to 7.6
110
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 710
3840
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 49
35
Strength to Weight: Axial, points 30 to 35
62
Strength to Weight: Bending, points 35 to 39
49
Thermal Diffusivity, mm2/s 54
3.2
Thermal Shock Resistance, points 14 to 16
72

Alloy Composition

Aluminum (Al), % 88 to 92.8
3.5 to 4.5
Carbon (C), % 0
0 to 0.080
Copper (Cu), % 2.6 to 3.6
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.6
1.2 to 1.8
Lead (Pb), % 0 to 0.1
0
Magnesium (Mg), % 0.15 to 0.45
0
Manganese (Mn), % 0 to 0.55
0
Nickel (Ni), % 0 to 0.1
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0.2 to 0.3
Silicon (Si), % 4.5 to 6.0
0
Tin (Sn), % 0 to 0.050
0
Titanium (Ti), % 0 to 0.25
89.9 to 93.1
Vanadium (V), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.2
0
Residuals, % 0
0 to 0.4