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Titanium 6-2-4-2 vs. Grade 14 Titanium

Both titanium 6-2-4-2 and grade 14 titanium are titanium alloys. Both are furnished in the annealed condition. They have 86% of their average alloy composition in common.

For each property being compared, the top bar is titanium 6-2-4-2 and the bottom bar is grade 14 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 8.6
23
Fatigue Strength, MPa 490
220
Poisson's Ratio 0.32
0.32
Reduction in Area, % 21
34
Shear Modulus, GPa 40
41
Shear Strength, MPa 560
290
Tensile Strength: Ultimate (UTS), MPa 950
460
Tensile Strength: Yield (Proof), MPa 880
310

Thermal Properties

Latent Heat of Fusion, J/g 400
420
Maximum Temperature: Mechanical, °C 300
320
Melting Completion (Liquidus), °C 1590
1660
Melting Onset (Solidus), °C 1540
1610
Specific Heat Capacity, J/kg-K 540
540
Thermal Conductivity, W/m-K 6.9
21
Thermal Expansion, µm/m-K 9.5
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 0.9
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 42
37
Density, g/cm3 4.6
4.5
Embodied Carbon, kg CO2/kg material 32
32
Embodied Energy, MJ/kg 520
520
Embodied Water, L/kg 210
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
93
Resilience: Unit (Modulus of Resilience), kJ/m3 3640
450
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 34
35
Strength to Weight: Axial, points 57
28
Strength to Weight: Bending, points 46
29
Thermal Diffusivity, mm2/s 2.8
8.5
Thermal Shock Resistance, points 67
35

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.050
0 to 0.080
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.25
0 to 0.3
Molybdenum (Mo), % 1.8 to 2.2
0
Nickel (Ni), % 0
0.4 to 0.6
Nitrogen (N), % 0 to 0.050
0 to 0.030
Oxygen (O), % 0 to 0.15
0 to 0.15
Ruthenium (Ru), % 0
0.040 to 0.060
Silicon (Si), % 0.060 to 0.12
0
Tin (Sn), % 1.8 to 2.2
0
Titanium (Ti), % 83.7 to 87.2
98.4 to 99.56
Zirconium (Zr), % 3.6 to 4.4
0
Residuals, % 0 to 0.4
0 to 0.4