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Titanium 6-5-0.5 vs. S44800 Stainless Steel

Titanium 6-5-0.5 belongs to the titanium alloys classification, while S44800 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 S44800 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
210
Elongation at Break, % 6.7
23
Fatigue Strength, MPa 530
300
Poisson's Ratio 0.32
0.27
Reduction in Area, % 23
45
Shear Modulus, GPa 40
82
Shear Strength, MPa 630
370
Tensile Strength: Ultimate (UTS), MPa 1080
590
Tensile Strength: Yield (Proof), MPa 990
450

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 300
1100
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1560
1410
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 4.2
17
Thermal Expansion, µm/m-K 9.4
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 41
19
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 33
3.8
Embodied Energy, MJ/kg 540
52
Embodied Water, L/kg 180
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
120
Resilience: Unit (Modulus of Resilience), kJ/m3 4630
480
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 67
21
Strength to Weight: Bending, points 52
20
Thermal Diffusivity, mm2/s 1.7
4.6
Thermal Shock Resistance, points 79
19

Alloy Composition


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Aluminum (Al), % 5.7 to 6.3
0
Carbon (C), % 0 to 0.080
0 to 0.010
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 0
0 to 0.15
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
62.6 to 66.5
Manganese (Mn), % 0
0 to 0.3
Molybdenum (Mo), % 0.25 to 0.75
3.5 to 4.2
Nickel (Ni), % 0
2.0 to 2.5
Nitrogen (N), % 0 to 0.050
0 to 0.020
Oxygen (O), % 0 to 0.19
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.4
0 to 0.2
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 85.6 to 90.1
0
Zirconium (Zr), % 4.0 to 6.0
0
Residuals, % 0 to 0.4
0