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Titanium 6-5-0.5 vs. ASTM Grade HH Steel

Titanium 6-5-0.5 belongs to the titanium alloys classification, while ASTM grade HH 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 6-5-0.5 and the bottom bar is ASTM grade HH steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
200
Elongation at Break, % 6.7
11
Fatigue Strength, MPa 530
150
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 40
79
Tensile Strength: Ultimate (UTS), MPa 1080
580
Tensile Strength: Yield (Proof), MPa 990
270

Thermal Properties

Latent Heat of Fusion, J/g 410
310
Maximum Temperature: Mechanical, °C 300
1100
Melting Completion (Liquidus), °C 1610
1400
Melting Onset (Solidus), °C 1560
1360
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 4.2
14
Thermal Expansion, µm/m-K 9.4
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 41
20
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 33
3.7
Embodied Energy, MJ/kg 540
53
Embodied Water, L/kg 180
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71
53
Resilience: Unit (Modulus of Resilience), kJ/m3 4630
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 67
21
Strength to Weight: Bending, points 52
20
Thermal Diffusivity, mm2/s 1.7
3.8
Thermal Shock Resistance, points 79
12

Alloy Composition


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Aluminum (Al), % 5.7 to 6.3
0
Carbon (C), % 0 to 0.080
0.2 to 0.5
Chromium (Cr), % 0
24 to 28
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
52.9 to 64.8
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0.25 to 0.75
0 to 0.5
Nickel (Ni), % 0
11 to 14
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.19
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.4
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Titanium (Ti), % 85.6 to 90.1
0
Zirconium (Zr), % 4.0 to 6.0
0
Residuals, % 0 to 0.4
0