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Titanium 6-7 vs. S38100 Stainless Steel

Titanium 6-7 belongs to the titanium alloys classification, while S38100 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 S38100 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
45
Fatigue Strength, MPa 530
210
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 45
76
Shear Strength, MPa 610
400
Tensile Strength: Ultimate (UTS), MPa 1020
580
Tensile Strength: Yield (Proof), MPa 900
230

Thermal Properties

Latent Heat of Fusion, J/g 410
320
Maximum Temperature: Mechanical, °C 300
970
Melting Completion (Liquidus), °C 1700
1400
Melting Onset (Solidus), °C 1650
1350
Specific Heat Capacity, J/kg-K 520
480
Thermal Expansion, µm/m-K 9.3
16

Otherwise Unclassified Properties

Base Metal Price, % relative 75
20
Density, g/cm3 5.1
7.8
Embodied Carbon, kg CO2/kg material 34
3.8
Embodied Energy, MJ/kg 540
54
Embodied Water, L/kg 190
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
210
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 32
25
Strength to Weight: Axial, points 56
21
Strength to Weight: Bending, points 44
20
Thermal Shock Resistance, points 66
13

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.080
Chromium (Cr), % 0
17 to 19
Hydrogen (H), % 0 to 0.0090
0
Iron (Fe), % 0 to 0.25
57.9 to 64
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 6.5 to 7.5
0
Nickel (Ni), % 0
17.5 to 18.5
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
1.5 to 2.5
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
0