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Titanium 6-5-0.5 vs. EN 1.3940 Stainless Steel

Titanium 6-5-0.5 belongs to the titanium alloys classification, while EN 1.3940 stainless steel belongs to the iron alloys. There are 29 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 6-5-0.5 and the bottom bar is EN 1.3940 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
190
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
77
Tensile Strength: Ultimate (UTS), MPa 1080
540
Tensile Strength: Yield (Proof), MPa 990
240

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Maximum Temperature: Mechanical, °C 300
930
Melting Completion (Liquidus), °C 1610
1420
Melting Onset (Solidus), °C 1560
1380
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 4.2
15
Thermal Expansion, µm/m-K 9.4
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 41
17
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 33
3.3
Embodied Energy, MJ/kg 540
47
Embodied Water, L/kg 180
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
150
Resilience: Unit (Modulus of Resilience), kJ/m3 4630
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 67
19
Strength to Weight: Bending, points 52
19
Thermal Diffusivity, mm2/s 1.7
4.1
Thermal Shock Resistance, points 79
16

Alloy Composition

Aluminum (Al), % 5.7 to 6.3
0
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
64.2 to 71.4
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0.25 to 0.75
0
Nickel (Ni), % 0
12 to 14
Nitrogen (N), % 0 to 0.050
0.1 to 0.2
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
Zirconium (Zr), % 4.0 to 6.0
0
Residuals, % 0 to 0.4
0