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Grade 3 Titanium vs. SAE-AISI S6 Steel

Grade 3 titanium belongs to the titanium alloys classification, while SAE-AISI S6 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is grade 3 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 39
72
Tensile Strength: Ultimate (UTS), MPa 510
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 21
41
Thermal Expansion, µm/m-K 9.2
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
3.2
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 31
2.3
Embodied Energy, MJ/kg 510
33
Embodied Water, L/kg 110
56

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 32
24 to 70
Strength to Weight: Bending, points 32
22 to 45
Thermal Diffusivity, mm2/s 8.6
11
Thermal Shock Resistance, points 37
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 0.3
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 0.050
0
Oxygen (O), % 0 to 0.35
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), % 98.8 to 100
0
Vanadium (V), % 0
0.2 to 0.4
Residuals, % 0 to 0.4
0