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Grade 23 Titanium vs. Grade FDSiCrV Steel

Grade 23 titanium belongs to the titanium alloys classification, while grade FDSiCrV steel belongs to the iron alloys. There are 25 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 grade 23 titanium and the bottom bar is grade FDSiCrV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.32
0.29
Reduction in Area, % 30
42
Shear Modulus, GPa 40
80
Tensile Strength: Ultimate (UTS), MPa 930 to 940
2100

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 340
420
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1560
1400
Specific Heat Capacity, J/kg-K 560
480
Thermal Conductivity, W/m-K 7.1
47
Thermal Expansion, µm/m-K 9.4
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 36
2.3
Density, g/cm3 4.4
7.7
Embodied Carbon, kg CO2/kg material 38
1.9
Embodied Energy, MJ/kg 610
26
Embodied Water, L/kg 200
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 58 to 59
75
Strength to Weight: Bending, points 48
47
Thermal Diffusivity, mm2/s 2.9
13
Thermal Shock Resistance, points 67 to 68
63

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0.5 to 0.7
Chromium (Cr), % 0
0.5 to 1.0
Copper (Cu), % 0
0 to 0.12
Hydrogen (H), % 0 to 0.013
0
Iron (Fe), % 0 to 0.25
96 to 97.8
Manganese (Mn), % 0
0.4 to 0.9
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.13
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
1.2 to 1.7
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 88.1 to 91
0
Vanadium (V), % 3.5 to 4.5
0.1 to 0.25
Residuals, % 0 to 0.4
0