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Grade FDSiCr Steel vs. Grade 23 Titanium

Grade FDSiCr steel belongs to the iron alloys classification, while grade 23 titanium belongs to the titanium 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 FDSiCr steel and the bottom bar is grade 23 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.32
Reduction in Area, % 42
30
Shear Modulus, GPa 80
40
Tensile Strength: Ultimate (UTS), MPa 1930
930 to 940

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Maximum Temperature: Mechanical, °C 410
340
Melting Completion (Liquidus), °C 1440
1610
Melting Onset (Solidus), °C 1400
1560
Specific Heat Capacity, J/kg-K 480
560
Thermal Conductivity, W/m-K 48
7.1
Thermal Expansion, µm/m-K 13
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
36
Density, g/cm3 7.7
4.4
Embodied Carbon, kg CO2/kg material 1.5
38
Embodied Energy, MJ/kg 20
610
Embodied Water, L/kg 48
200

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 69
58 to 59
Strength to Weight: Bending, points 44
48
Thermal Diffusivity, mm2/s 13
2.9
Thermal Shock Resistance, points 58
67 to 68

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0.5 to 0.6
0 to 0.080
Chromium (Cr), % 0.5 to 0.8
0
Copper (Cu), % 0 to 0.12
0
Hydrogen (H), % 0
0 to 0.013
Iron (Fe), % 96.5 to 97.8
0 to 0.25
Manganese (Mn), % 0.5 to 0.9
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.13
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.2 to 1.6
0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
88.1 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4