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SAE-AISI O1 Steel vs. Grade 14 Titanium

SAE-AISI O1 steel belongs to the iron alloys classification, while grade 14 titanium belongs to the titanium alloys. There are 23 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI O1 steel and the bottom bar is grade 14 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 72
41
Tensile Strength: Ultimate (UTS), MPa 640 to 2060
460

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Melting Completion (Liquidus), °C 1460
1660
Melting Onset (Solidus), °C 1420
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 43
21
Thermal Expansion, µm/m-K 12
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.9
32
Embodied Energy, MJ/kg 27
520
Embodied Water, L/kg 51
210

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 23 to 73
28
Strength to Weight: Bending, points 21 to 46
29
Thermal Diffusivity, mm2/s 12
8.5
Thermal Shock Resistance, points 21 to 68
35

Alloy Composition

Carbon (C), % 0.85 to 1.0
0 to 0.080
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0 to 0.25
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 95 to 97.4
0 to 0.3
Manganese (Mn), % 1.0 to 1.4
0
Nickel (Ni), % 0 to 0.3
0.4 to 0.6
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Phosphorus (P), % 0 to 0.030
0
Ruthenium (Ru), % 0
0.040 to 0.060
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.030
0
Titanium (Ti), % 0
98.4 to 99.56
Tungsten (W), % 0.4 to 0.6
0
Vanadium (V), % 0 to 0.3
0
Residuals, % 0
0 to 0.4