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Grade TDCrV Steel vs. Grade 27 Titanium

Grade TDCrV steel belongs to the iron alloys classification, while grade 27 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 TDCrV steel and the bottom bar is grade 27 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, % 51
34
Shear Modulus, GPa 80
41
Tensile Strength: Ultimate (UTS), MPa 1730
270

Thermal Properties

Latent Heat of Fusion, J/g 250
420
Maximum Temperature: Mechanical, °C 410
320
Melting Completion (Liquidus), °C 1450
1660
Melting Onset (Solidus), °C 1410
1610
Specific Heat Capacity, J/kg-K 470
540
Thermal Conductivity, W/m-K 49
21
Thermal Expansion, µm/m-K 13
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
7.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
37
Density, g/cm3 7.8
4.5
Embodied Carbon, kg CO2/kg material 1.9
33
Embodied Energy, MJ/kg 26
530
Embodied Water, L/kg 49
320

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
35
Strength to Weight: Axial, points 61
17
Strength to Weight: Bending, points 41
21
Thermal Diffusivity, mm2/s 13
8.8
Thermal Shock Resistance, points 51
21

Alloy Composition

Carbon (C), % 0.62 to 0.72
0 to 0.080
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 97.8 to 98.8
0 to 0.2
Manganese (Mn), % 0.5 to 0.9
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Phosphorus (P), % 0 to 0.025
0
Ruthenium (Ru), % 0
0.080 to 0.14
Silicon (Si), % 0.15 to 0.3
0
Sulfur (S), % 0 to 0.020
0
Titanium (Ti), % 0
99 to 99.92
Vanadium (V), % 0.15 to 0.25
0
Residuals, % 0
0 to 0.4