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R56401 Titanium vs. SAE-AISI S6 Steel

R56401 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 (9, in this case) are not shown.

For each property being compared, the top bar is R56401 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 40
72
Tensile Strength: Ultimate (UTS), MPa 940
670 to 1920

Thermal Properties

Latent Heat of Fusion, J/g 410
290
Melting Completion (Liquidus), °C 1610
1430
Melting Onset (Solidus), °C 1560
1390
Specific Heat Capacity, J/kg-K 560
480
Thermal Conductivity, W/m-K 7.1
41
Thermal Expansion, µm/m-K 9.6
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 36
3.2
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 38
2.3
Embodied Energy, MJ/kg 610
33
Embodied Water, L/kg 200
56

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 59
24 to 70
Strength to Weight: Bending, points 48
22 to 45
Thermal Diffusivity, mm2/s 2.9
11
Thermal Shock Resistance, points 67
22 to 64

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
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 0.012
0
Iron (Fe), % 0 to 0.25
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 0.13
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), % 88.5 to 91
0
Vanadium (V), % 3.5 to 4.5
0.2 to 0.4