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2124 Aluminum vs. Grade C-6 Titanium

2124 aluminum belongs to the aluminum alloys classification, while grade C-6 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 2124 aluminum and the bottom bar is grade C-6 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
100
Elongation at Break, % 5.7
9.0
Fatigue Strength, MPa 130
460
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
39
Tensile Strength: Ultimate (UTS), MPa 490
890
Tensile Strength: Yield (Proof), MPa 430
830

Thermal Properties

Latent Heat of Fusion, J/g 390
410
Maximum Temperature: Mechanical, °C 190
310
Melting Completion (Liquidus), °C 640
1580
Melting Onset (Solidus), °C 500
1530
Specific Heat Capacity, J/kg-K 880
550
Thermal Conductivity, W/m-K 150
7.8
Thermal Expansion, µm/m-K 23
9.8

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 10
36
Density, g/cm3 3.0
4.5
Embodied Carbon, kg CO2/kg material 8.2
30
Embodied Energy, MJ/kg 150
480
Embodied Water, L/kg 1150
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
78
Resilience: Unit (Modulus of Resilience), kJ/m3 1290
3300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
35
Strength to Weight: Axial, points 45
55
Strength to Weight: Bending, points 46
46
Thermal Diffusivity, mm2/s 58
3.2
Thermal Shock Resistance, points 21
63

Alloy Composition

Aluminum (Al), % 91.3 to 94.7
4.0 to 6.0
Carbon (C), % 0
0 to 0.1
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.8 to 4.9
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.3
0 to 0.5
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0.3 to 0.9
0
Nickel (Ni), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Silicon (Si), % 0 to 0.2
0
Tin (Sn), % 0
2.0 to 3.0
Titanium (Ti), % 0 to 0.15
89.7 to 94
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0
0 to 0.4