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

Titanium 6-2-4-2 belongs to the titanium alloys classification, while ASTM grade HN steel belongs to the iron alloys. There are 23 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 ASTM grade HN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 8.6
9.0
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
77
Tensile Strength: Ultimate (UTS), MPa 950
500

Thermal Properties

Latent Heat of Fusion, J/g 400
310
Maximum Temperature: Mechanical, °C 300
1080
Melting Completion (Liquidus), °C 1590
1400
Melting Onset (Solidus), °C 1540
1350
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 6.9
13
Thermal Expansion, µm/m-K 9.5
16

Otherwise Unclassified Properties

Base Metal Price, % relative 42
26
Density, g/cm3 4.6
7.9
Embodied Carbon, kg CO2/kg material 32
4.6
Embodied Energy, MJ/kg 520
66
Embodied Water, L/kg 210
180

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 34
25
Strength to Weight: Axial, points 57
17
Strength to Weight: Bending, points 46
18
Thermal Diffusivity, mm2/s 2.8
3.5
Thermal Shock Resistance, points 67
11

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
19 to 23
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
44.9 to 57.8
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 1.8 to 2.2
0 to 0.5
Nickel (Ni), % 0
23 to 27
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