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2124 Aluminum vs. Grade 13 Titanium

2124 aluminum belongs to the aluminum alloys classification, while grade 13 titanium belongs to the titanium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 2124 aluminum and the bottom bar is grade 13 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 5.7
27
Fatigue Strength, MPa 130
140
Poisson's Ratio 0.33
0.32
Shear Modulus, GPa 27
41
Shear Strength, MPa 280
200
Tensile Strength: Ultimate (UTS), MPa 490
310
Tensile Strength: Yield (Proof), MPa 430
190

Thermal Properties

Latent Heat of Fusion, J/g 390
420
Maximum Temperature: Mechanical, °C 190
320
Melting Completion (Liquidus), °C 640
1660
Melting Onset (Solidus), °C 500
1610
Specific Heat Capacity, J/kg-K 880
540
Thermal Conductivity, W/m-K 150
22
Thermal Expansion, µm/m-K 23
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 38
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 110
7.2

Otherwise Unclassified Properties

Base Metal Price, % relative 10
37
Density, g/cm3 3.0
4.5
Embodied Carbon, kg CO2/kg material 8.2
32
Embodied Energy, MJ/kg 150
520
Embodied Water, L/kg 1150
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
73
Resilience: Unit (Modulus of Resilience), kJ/m3 1290
180
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 46
35
Strength to Weight: Axial, points 45
19
Strength to Weight: Bending, points 46
22
Thermal Diffusivity, mm2/s 58
8.9
Thermal Shock Resistance, points 21
24

Alloy Composition

Aluminum (Al), % 91.3 to 94.7
0
Carbon (C), % 0
0 to 0.080
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 0.2
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0.3 to 0.9
0
Nickel (Ni), % 0
0.4 to 0.6
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.1
Ruthenium (Ru), % 0
0.040 to 0.060
Silicon (Si), % 0 to 0.2
0
Titanium (Ti), % 0 to 0.15
98.5 to 99.56
Zinc (Zn), % 0 to 0.25
0
Residuals, % 0
0 to 0.4