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Titanium 6-5-0.5 vs. S31266 Stainless Steel

Titanium 6-5-0.5 belongs to the titanium alloys classification, while S31266 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is titanium 6-5-0.5 and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
210
Elongation at Break, % 6.7
40
Fatigue Strength, MPa 530
400
Poisson's Ratio 0.32
0.28
Reduction in Area, % 23
56
Shear Modulus, GPa 40
81
Shear Strength, MPa 630
590
Tensile Strength: Ultimate (UTS), MPa 1080
860
Tensile Strength: Yield (Proof), MPa 990
470

Thermal Properties

Latent Heat of Fusion, J/g 410
310
Maximum Temperature: Mechanical, °C 300
1100
Melting Completion (Liquidus), °C 1610
1470
Melting Onset (Solidus), °C 1560
1420
Specific Heat Capacity, J/kg-K 550
460
Thermal Conductivity, W/m-K 4.2
12
Thermal Expansion, µm/m-K 9.4
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 41
37
Density, g/cm3 4.5
8.2
Embodied Carbon, kg CO2/kg material 33
6.5
Embodied Energy, MJ/kg 540
89
Embodied Water, L/kg 180
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
290
Resilience: Unit (Modulus of Resilience), kJ/m3 4630
540
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 67
29
Strength to Weight: Bending, points 52
24
Thermal Diffusivity, mm2/s 1.7
3.1
Thermal Shock Resistance, points 79
18

Alloy Composition


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Aluminum (Al), % 5.7 to 6.3
0
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 0
1.0 to 2.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
34.1 to 46
Manganese (Mn), % 0
2.0 to 4.0
Molybdenum (Mo), % 0.25 to 0.75
5.2 to 6.2
Nickel (Ni), % 0
21 to 24
Nitrogen (N), % 0 to 0.050
0.35 to 0.6
Oxygen (O), % 0 to 0.19
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 85.6 to 90.1
0
Tungsten (W), % 0
1.5 to 2.5
Zirconium (Zr), % 4.0 to 6.0
0
Residuals, % 0 to 0.4
0