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Grade FDSiCrV Steel vs. Grade 33 Titanium

Grade FDSiCrV steel belongs to the iron alloys classification, while grade 33 titanium belongs to the titanium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade FDSiCrV steel and the bottom bar is grade 33 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
34
Shear Modulus, GPa 80
41
Tensile Strength: Ultimate (UTS), MPa 2100
390

Thermal Properties

Latent Heat of Fusion, J/g 270
420
Maximum Temperature: Mechanical, °C 420
320
Melting Completion (Liquidus), °C 1440
1660
Melting Onset (Solidus), °C 1400
1610
Specific Heat Capacity, J/kg-K 480
540
Thermal Conductivity, W/m-K 47
21
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
55
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 1.9
33
Embodied Energy, MJ/kg 26
530
Embodied Water, L/kg 50
200

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 75
24
Strength to Weight: Bending, points 47
26
Thermal Diffusivity, mm2/s 13
8.7
Thermal Shock Resistance, points 63
30

Alloy Composition

Carbon (C), % 0.5 to 0.7
0 to 0.080
Chromium (Cr), % 0.5 to 1.0
0.1 to 0.2
Copper (Cu), % 0 to 0.12
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 96 to 97.8
0 to 0.3
Manganese (Mn), % 0.4 to 0.9
0
Nickel (Ni), % 0
0.35 to 0.55
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.25
Palladium (Pd), % 0
0.010 to 0.020
Phosphorus (P), % 0 to 0.030
0
Ruthenium (Ru), % 0
0.020 to 0.040
Silicon (Si), % 1.2 to 1.7
0
Sulfur (S), % 0 to 0.025
0
Titanium (Ti), % 0
98.1 to 99.52
Vanadium (V), % 0.1 to 0.25
0
Residuals, % 0
0 to 0.4