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Titanium 6-5-0.5 vs. EN 1.4408 Stainless Steel

Titanium 6-5-0.5 belongs to the titanium alloys classification, while EN 1.4408 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, 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 EN 1.4408 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 6.7
34
Fatigue Strength, MPa 530
170
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 1080
510
Tensile Strength: Yield (Proof), MPa 990
210

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 300
990
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1560
1390
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 4.2
15
Thermal Expansion, µm/m-K 9.4
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 41
18
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 33
3.7
Embodied Energy, MJ/kg 540
52
Embodied Water, L/kg 180
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
140
Resilience: Unit (Modulus of Resilience), kJ/m3 4630
110
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 67
18
Strength to Weight: Bending, points 52
18
Thermal Diffusivity, mm2/s 1.7
3.9
Thermal Shock Resistance, points 79
11

Alloy Composition


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Aluminum (Al), % 5.7 to 6.3
0
Carbon (C), % 0 to 0.080
0 to 0.070
Chromium (Cr), % 0
18 to 20
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
62.4 to 71
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0.25 to 0.75
2.0 to 2.5
Nickel (Ni), % 0
9.0 to 12
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.19
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 85.6 to 90.1
0
Zirconium (Zr), % 4.0 to 6.0
0
Residuals, % 0 to 0.4
0