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Grade 5 Titanium vs. Grade 9 Titanium

Both grade 5 titanium and grade 9 titanium are titanium alloys. They have a very high 95% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 5 titanium and the bottom bar is grade 9 titanium.

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 8.6 to 11
11 to 17
Fatigue Strength, MPa 530 to 630
330 to 480
Poisson's Ratio 0.32
0.32
Reduction in Area, % 21 to 25
28
Shear Modulus, GPa 40
40
Shear Strength, MPa 600 to 710
430 to 580
Tensile Strength: Ultimate (UTS), MPa 1000 to 1190
700 to 960
Tensile Strength: Yield (Proof), MPa 910 to 1110
540 to 830

Thermal Properties

Melting Onset (Solidus), °C 1650
1590
Specific Heat Capacity, J/kg-K 560
550
Thermal Conductivity, W/m-K 6.8
8.1
Thermal Expansion, µm/m-K 8.9
9.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 36
37
Density, g/cm3 4.4
4.5
Embodied Carbon, kg CO2/kg material 38
36
Embodied Energy, MJ/kg 610
580
Embodied Water, L/kg 200
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
89 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 3970 to 5880
1380 to 3220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 62 to 75
43 to 60
Strength to Weight: Bending, points 50 to 56
39 to 48
Thermal Diffusivity, m2/s 2.7
3.3
Thermal Shock Resistance, points 76 to 91
52 to 71

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
2.5 to 3.5
Carbon (C), % 0 to 0.080
0 to 0.080
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.4
0 to 0.25
Nitrogen (N), % 0 to 0.050
0 to 0.030
Oxygen (O), % 0 to 0.2
0 to 0.15
Titanium (Ti), % 87.4 to 91
92.6 to 95.5
Vanadium (V), % 3.5 to 4.5
2.0 to 3.0
Yttrium (Y), % 0 to 0.0050
0
Residuals, % 0 to 0.4
0 to 0.4

Comparable Variants