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Grade 30 Titanium vs. Grade VDSiCrV Steel

Grade 30 titanium belongs to the titanium alloys classification, while grade VDSiCrV steel belongs to the iron alloys. There are 24 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 30 titanium and the bottom bar is grade VDSiCrV 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, % 34
48
Shear Modulus, GPa 41
80
Tensile Strength: Ultimate (UTS), MPa 390
2100

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 36
1.9
Embodied Energy, MJ/kg 600
26
Embodied Water, L/kg 230
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 24
75
Strength to Weight: Bending, points 26
47
Thermal Diffusivity, mm2/s 8.6
13
Thermal Shock Resistance, points 30
63

Alloy Composition

Carbon (C), % 0 to 0.080
0.5 to 0.7
Chromium (Cr), % 0
0.5 to 1.0
Cobalt (Co), % 0.2 to 0.8
0
Copper (Cu), % 0
0 to 0.060
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
96.1 to 97.8
Manganese (Mn), % 0
0.4 to 0.9
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
1.2 to 1.7
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 98 to 99.76
0
Vanadium (V), % 0
0.1 to 0.25
Residuals, % 0 to 0.4
0