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Titanium 6-2-4-2 vs. S44660 Stainless Steel

Titanium 6-2-4-2 belongs to the titanium alloys classification, while S44660 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is titanium 6-2-4-2 and the bottom bar is S44660 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 8.6
20
Fatigue Strength, MPa 490
330
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 40
81
Shear Strength, MPa 560
410
Tensile Strength: Ultimate (UTS), MPa 950
660
Tensile Strength: Yield (Proof), MPa 880
510

Thermal Properties

Latent Heat of Fusion, J/g 400
300
Maximum Temperature: Mechanical, °C 300
1100
Melting Completion (Liquidus), °C 1590
1460
Melting Onset (Solidus), °C 1540
1410
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 6.9
17
Thermal Expansion, µm/m-K 9.5
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 0.9
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 42
21
Density, g/cm3 4.6
7.7
Embodied Carbon, kg CO2/kg material 32
4.3
Embodied Energy, MJ/kg 520
61
Embodied Water, L/kg 210
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
120
Resilience: Unit (Modulus of Resilience), kJ/m3 3640
640
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 34
25
Strength to Weight: Axial, points 57
24
Strength to Weight: Bending, points 46
22
Thermal Diffusivity, mm2/s 2.8
4.5
Thermal Shock Resistance, points 67
21

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.050
0 to 0.030
Chromium (Cr), % 0
25 to 28
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
60.4 to 71
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 1.8 to 2.2
3.0 to 4.0
Nickel (Ni), % 0
1.0 to 3.5
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0 to 0.050
0 to 0.040
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.060 to 0.12
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.8 to 2.2
0
Titanium (Ti), % 83.7 to 87.2
0.2 to 1.0
Zirconium (Zr), % 3.6 to 4.4
0
Residuals, % 0 to 0.4
0