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Titanium 6-2-4-2 vs. ASTM Grade HE Steel

Titanium 6-2-4-2 belongs to the titanium alloys classification, while ASTM grade HE steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 ASTM grade HE steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 8.6
10
Fatigue Strength, MPa 490
160
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 40
79
Tensile Strength: Ultimate (UTS), MPa 950
670
Tensile Strength: Yield (Proof), MPa 880
310

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 300
1100
Melting Completion (Liquidus), °C 1590
1400
Melting Onset (Solidus), °C 1540
1360
Specific Heat Capacity, J/kg-K 540
490
Thermal Conductivity, W/m-K 6.9
14
Thermal Expansion, µm/m-K 9.5
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 0.9
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 42
19
Density, g/cm3 4.6
7.7
Embodied Carbon, kg CO2/kg material 32
3.5
Embodied Energy, MJ/kg 520
50
Embodied Water, L/kg 210
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
56
Resilience: Unit (Modulus of Resilience), kJ/m3 3640
240
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 34
25
Strength to Weight: Axial, points 57
24
Strength to Weight: Bending, points 46
22
Thermal Diffusivity, mm2/s 2.8
3.6
Thermal Shock Resistance, points 67
14

Alloy Composition


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Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.050
0.2 to 0.5
Chromium (Cr), % 0
26 to 30
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
53.9 to 65.8
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 1.8 to 2.2
0 to 0.5
Nickel (Ni), % 0
8.0 to 11
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.060 to 0.12
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 1.8 to 2.2
0
Titanium (Ti), % 83.7 to 87.2
0
Zirconium (Zr), % 3.6 to 4.4
0
Residuals, % 0 to 0.4
0