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Grade 9 Titanium vs. EN 1.3555 Steel

Grade 9 titanium belongs to the titanium alloys classification, while EN 1.3555 steel belongs to the iron alloys. There are 22 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 9 titanium and the bottom bar is EN 1.3555 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
75
Tensile Strength: Ultimate (UTS), MPa 700 to 960
770

Thermal Properties

Latent Heat of Fusion, J/g 410
260
Maximum Temperature: Mechanical, °C 330
540
Melting Completion (Liquidus), °C 1640
1500
Melting Onset (Solidus), °C 1590
1450
Specific Heat Capacity, J/kg-K 550
460
Thermal Expansion, µm/m-K 9.1
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
9.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
11

Otherwise Unclassified Properties

Base Metal Price, % relative 37
11
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 36
5.6
Embodied Energy, MJ/kg 580
81
Embodied Water, L/kg 150
90

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 43 to 60
27
Strength to Weight: Bending, points 39 to 48
23
Thermal Shock Resistance, points 52 to 71
22

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.080
0.1 to 0.15
Chromium (Cr), % 0
3.9 to 4.3
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
85.4 to 87.7
Manganese (Mn), % 0
0.15 to 0.35
Molybdenum (Mo), % 0
4.0 to 4.5
Nickel (Ni), % 0
3.2 to 3.6
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0.1 to 0.25
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 92.6 to 95.5
0
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 2.0 to 3.0
1.0 to 1.3
Residuals, % 0 to 0.4
0