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Titanium 6-7 vs. S39274 Stainless Steel

Titanium 6-7 belongs to the titanium alloys classification, while S39274 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is titanium 6-7 and the bottom bar is S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 11
17
Fatigue Strength, MPa 530
380
Poisson's Ratio 0.33
0.27
Reduction in Area, % 29
34
Shear Modulus, GPa 45
81
Shear Strength, MPa 610
560
Tensile Strength: Ultimate (UTS), MPa 1020
900
Tensile Strength: Yield (Proof), MPa 900
620

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 300
1100
Melting Completion (Liquidus), °C 1700
1480
Melting Onset (Solidus), °C 1650
1430
Specific Heat Capacity, J/kg-K 520
470
Thermal Expansion, µm/m-K 9.3
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
24
Density, g/cm3 5.1
8.0
Embodied Carbon, kg CO2/kg material 34
4.3
Embodied Energy, MJ/kg 540
60
Embodied Water, L/kg 190
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
140
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
940
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 56
32
Strength to Weight: Bending, points 44
26
Thermal Shock Resistance, points 66
25

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0
0.2 to 0.8
Hydrogen (H), % 0 to 0.0090
0
Iron (Fe), % 0 to 0.25
57 to 65.6
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 6.5 to 7.5
2.5 to 3.5
Nickel (Ni), % 0
6.0 to 8.0
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0.24 to 0.32
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.020
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0
Tungsten (W), % 0
1.5 to 2.5