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Titanium 6-7 vs. S39277 Stainless Steel

Titanium 6-7 belongs to the titanium alloys classification, while S39277 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is titanium 6-7 and the bottom bar is S39277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
28
Fatigue Strength, MPa 530
480
Poisson's Ratio 0.33
0.27
Reduction in Area, % 29
57
Shear Modulus, GPa 45
80
Shear Strength, MPa 610
600
Tensile Strength: Ultimate (UTS), MPa 1020
930
Tensile Strength: Yield (Proof), MPa 900
660

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 300
1100
Melting Completion (Liquidus), °C 1700
1460
Melting Onset (Solidus), °C 1650
1410
Specific Heat Capacity, J/kg-K 520
470
Thermal Expansion, µm/m-K 9.3
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
23
Density, g/cm3 5.1
7.9
Embodied Carbon, kg CO2/kg material 34
4.2
Embodied Energy, MJ/kg 540
59
Embodied Water, L/kg 190
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
240
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
1070
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 56
33
Strength to Weight: Bending, points 44
27
Thermal Shock Resistance, points 66
26

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.025
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0
1.2 to 2.0
Hydrogen (H), % 0 to 0.0090
0
Iron (Fe), % 0 to 0.25
56.8 to 64.3
Manganese (Mn), % 0
0 to 0.8
Molybdenum (Mo), % 6.5 to 7.5
3.0 to 4.0
Nickel (Ni), % 0
6.5 to 8.0
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0.23 to 0.33
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.0020
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0
Tungsten (W), % 0
0.8 to 1.2