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Titanium 6-5-0.5 vs. S40977 Stainless Steel

Titanium 6-5-0.5 belongs to the titanium alloys classification, while S40977 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 6-5-0.5 and the bottom bar is S40977 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 6.7
21
Fatigue Strength, MPa 530
200
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
76
Shear Strength, MPa 630
320
Tensile Strength: Ultimate (UTS), MPa 1080
510
Tensile Strength: Yield (Proof), MPa 990
310

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 300
720
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1560
1400
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 4.2
25
Thermal Expansion, µm/m-K 9.4
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 41
6.5
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 33
1.9
Embodied Energy, MJ/kg 540
27
Embodied Water, L/kg 180
97

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
92
Resilience: Unit (Modulus of Resilience), kJ/m3 4630
250
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
6.7
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
10.5 to 12.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
83.9 to 89.2
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0.25 to 0.75
0
Nickel (Ni), % 0
0.3 to 1.0
Nitrogen (N), % 0 to 0.050
0 to 0.030
Oxygen (O), % 0 to 0.19
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 85.6 to 90.1
0
Zirconium (Zr), % 4.0 to 6.0
0
Residuals, % 0 to 0.4
0