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Titanium 6-7 vs. S33550 Stainless Steel

Titanium 6-7 belongs to the titanium alloys classification, while S33550 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is titanium 6-7 and the bottom bar is S33550 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
40
Fatigue Strength, MPa 530
270
Poisson's Ratio 0.33
0.27
Shear Modulus, GPa 45
79
Shear Strength, MPa 610
470
Tensile Strength: Ultimate (UTS), MPa 1020
680
Tensile Strength: Yield (Proof), MPa 900
310

Thermal Properties

Latent Heat of Fusion, J/g 410
300
Maximum Temperature: Mechanical, °C 300
1100
Melting Completion (Liquidus), °C 1700
1400
Melting Onset (Solidus), °C 1650
1360
Specific Heat Capacity, J/kg-K 520
480
Thermal Expansion, µm/m-K 9.3
16

Otherwise Unclassified Properties

Base Metal Price, % relative 75
24
Density, g/cm3 5.1
7.8
Embodied Carbon, kg CO2/kg material 34
4.3
Embodied Energy, MJ/kg 540
61
Embodied Water, L/kg 190
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
220
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
250
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 56
24
Strength to Weight: Bending, points 44
22
Thermal Shock Resistance, points 66
15

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0.040 to 0.1
Cerium (Ce), % 0
0.025 to 0.070
Chromium (Cr), % 0
25 to 28
Hydrogen (H), % 0 to 0.0090
0
Iron (Fe), % 0 to 0.25
48.8 to 58.2
Lanthanum (La), % 0
0.025 to 0.070
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 6.5 to 7.5
0
Nickel (Ni), % 0
16.5 to 20
Niobium (Nb), % 6.5 to 7.5
0.050 to 0.15
Nitrogen (N), % 0 to 0.050
0.18 to 0.25
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0