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Titanium 6-2-4-2 vs. SAE-AISI D7 Steel

Titanium 6-2-4-2 belongs to the titanium alloys classification, while SAE-AISI D7 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is titanium 6-2-4-2 and the bottom bar is SAE-AISI D7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 950
800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g 400
270
Melting Completion (Liquidus), °C 1590
1440
Melting Onset (Solidus), °C 1540
1400
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 6.9
27
Thermal Expansion, µm/m-K 9.5
11

Otherwise Unclassified Properties

Base Metal Price, % relative 42
10
Density, g/cm3 4.6
7.6
Embodied Carbon, kg CO2/kg material 32
11
Embodied Energy, MJ/kg 520
180
Embodied Water, L/kg 210
130

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 34
25
Strength to Weight: Axial, points 57
29 to 78
Strength to Weight: Bending, points 46
25 to 48
Thermal Diffusivity, mm2/s 2.8
7.4
Thermal Shock Resistance, points 67
27 to 72

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.050
2.2 to 2.5
Chromium (Cr), % 0
11.5 to 13.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
76.6 to 81.9
Manganese (Mn), % 0
0 to 0.6
Molybdenum (Mo), % 1.8 to 2.2
0.7 to 1.2
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0.060 to 0.12
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 1.8 to 2.2
0
Titanium (Ti), % 83.7 to 87.2
0
Vanadium (V), % 0
3.8 to 4.4
Zirconium (Zr), % 3.6 to 4.4
0
Residuals, % 0 to 0.4
0