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Grade 17 Titanium vs. SAE-AISI S6 Steel

Grade 17 titanium belongs to the titanium alloys classification, while SAE-AISI S6 steel belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is grade 17 titanium and the bottom bar is SAE-AISI S6 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 38
72
Tensile Strength: Ultimate (UTS), MPa 270
670 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Melting Completion (Liquidus), °C 1660
1430
Melting Onset (Solidus), °C 1610
1390
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 23
41
Thermal Expansion, µm/m-K 8.7
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.7
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 7.3
8.9

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 36
2.3
Embodied Energy, MJ/kg 600
33
Embodied Water, L/kg 230
56

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 17
24 to 70
Strength to Weight: Bending, points 21
22 to 45
Thermal Diffusivity, mm2/s 9.3
11
Thermal Shock Resistance, points 21
22 to 64

Alloy Composition

Carbon (C), % 0 to 0.080
0.4 to 0.5
Chromium (Cr), % 0
1.2 to 1.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
92.8 to 94.7
Manganese (Mn), % 0
1.2 to 1.5
Molybdenum (Mo), % 0
0.3 to 0.5
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
2.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99.015 to 99.96
0
Vanadium (V), % 0
0.2 to 0.4
Residuals, % 0 to 0.4
0