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Grade FDSiCrV Steel vs. Grade 6 Titanium

Grade FDSiCrV steel belongs to the iron alloys classification, while grade 6 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 6 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Poisson's Ratio 0.29
0.32
Reduction in Area, % 42
27
Shear Modulus, GPa 80
39
Tensile Strength: Ultimate (UTS), MPa 2100
890

Thermal Properties

Latent Heat of Fusion, J/g 270
410
Maximum Temperature: Mechanical, °C 420
310
Melting Completion (Liquidus), °C 1440
1580
Melting Onset (Solidus), °C 1400
1530
Specific Heat Capacity, J/kg-K 480
550
Thermal Conductivity, W/m-K 47
7.8
Thermal Expansion, µm/m-K 13
9.4

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
1.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
36
Density, g/cm3 7.7
4.5
Embodied Carbon, kg CO2/kg material 1.9
30
Embodied Energy, MJ/kg 26
480
Embodied Water, L/kg 50
190

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
35
Strength to Weight: Axial, points 75
55
Strength to Weight: Bending, points 47
46
Thermal Diffusivity, mm2/s 13
3.2
Thermal Shock Resistance, points 63
65

Alloy Composition

Aluminum (Al), % 0
4.0 to 6.0
Carbon (C), % 0.5 to 0.7
0 to 0.080
Chromium (Cr), % 0.5 to 1.0
0
Copper (Cu), % 0 to 0.12
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 96 to 97.8
0 to 0.5
Manganese (Mn), % 0.4 to 0.9
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 1.2 to 1.7
0
Sulfur (S), % 0 to 0.025
0
Tin (Sn), % 0
2.0 to 3.0
Titanium (Ti), % 0
89.8 to 94
Vanadium (V), % 0.1 to 0.25
0
Residuals, % 0
0 to 0.4