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Titanium 6-2-4-2 vs. SAE-AISI O7 Steel

Titanium 6-2-4-2 belongs to the titanium alloys classification, while SAE-AISI O7 steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, 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 O7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
73
Tensile Strength: Ultimate (UTS), MPa 950
680 to 2110

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Melting Completion (Liquidus), °C 1590
1480
Melting Onset (Solidus), °C 1540
1430
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 6.9
41
Thermal Expansion, µm/m-K 9.5
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 0.9
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 42
6.0
Density, g/cm3 4.6
7.9
Embodied Carbon, kg CO2/kg material 32
2.3
Embodied Energy, MJ/kg 520
33
Embodied Water, L/kg 210
52

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 34
24
Strength to Weight: Axial, points 57
24 to 74
Strength to Weight: Bending, points 46
22 to 46
Thermal Diffusivity, mm2/s 2.8
11
Thermal Shock Resistance, points 67
23 to 70

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.050
1.1 to 1.3
Chromium (Cr), % 0
0.35 to 0.85
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
92.9 to 97.6
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 1.8 to 2.2
0 to 0.3
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
Tungsten (W), % 0
1.0 to 2.0
Vanadium (V), % 0
0 to 0.4
Zirconium (Zr), % 3.6 to 4.4
0
Residuals, % 0 to 0.4
0