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Titanium 6-2-4-2 vs. AISI 309 Stainless Steel

Titanium 6-2-4-2 belongs to the titanium alloys classification, while AISI 309 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 AISI 309 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 8.6
34 to 47
Fatigue Strength, MPa 490
250 to 280
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 40
78
Shear Strength, MPa 560
420 to 470
Tensile Strength: Ultimate (UTS), MPa 950
600 to 710
Tensile Strength: Yield (Proof), MPa 880
260 to 350

Thermal Properties

Latent Heat of Fusion, J/g 400
290
Maximum Temperature: Mechanical, °C 300
980
Melting Completion (Liquidus), °C 1590
1450
Melting Onset (Solidus), °C 1540
1400
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 6.9
16
Thermal Expansion, µm/m-K 9.5
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 0.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 42
19
Density, g/cm3 4.6
7.8
Embodied Carbon, kg CO2/kg material 32
3.6
Embodied Energy, MJ/kg 520
51
Embodied Water, L/kg 210
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
200 to 230
Resilience: Unit (Modulus of Resilience), kJ/m3 3640
170 to 310
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 34
25
Strength to Weight: Axial, points 57
21 to 25
Strength to Weight: Bending, points 46
20 to 23
Thermal Diffusivity, mm2/s 2.8
4.3
Thermal Shock Resistance, points 67
14 to 16

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.050
0 to 0.2
Chromium (Cr), % 0
22 to 24
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
58 to 66
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 1.8 to 2.2
0
Nickel (Ni), % 0
12 to 15
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0.060 to 0.12
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.8 to 2.2
0
Titanium (Ti), % 83.7 to 87.2
0
Zirconium (Zr), % 3.6 to 4.4
0
Residuals, % 0 to 0.4
0