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Grade 32 Titanium vs. Titanium 6-7

Both grade 32 titanium and titanium 6-7 are titanium alloys. Both are furnished in the annealed condition. They have a moderately high 93% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is grade 32 titanium and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 11
11
Fatigue Strength, MPa 390
530
Poisson's Ratio 0.32
0.33
Reduction in Area, % 28
29
Shear Modulus, GPa 40
45
Shear Strength, MPa 460
610
Tensile Strength: Ultimate (UTS), MPa 770
1020
Tensile Strength: Yield (Proof), MPa 670
900

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 310
300
Melting Completion (Liquidus), °C 1610
1700
Melting Onset (Solidus), °C 1560
1650
Specific Heat Capacity, J/kg-K 550
520
Thermal Expansion, µm/m-K 8.2
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 38
75
Density, g/cm3 4.5
5.1
Embodied Carbon, kg CO2/kg material 32
34
Embodied Energy, MJ/kg 530
540
Embodied Water, L/kg 180
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
110
Resilience: Unit (Modulus of Resilience), kJ/m3 2100
3460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
32
Strength to Weight: Axial, points 47
56
Strength to Weight: Bending, points 41
44
Thermal Shock Resistance, points 63
66

Alloy Composition


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Aluminum (Al), % 4.5 to 5.5
5.5 to 6.5
Carbon (C), % 0 to 0.080
0 to 0.080
Hydrogen (H), % 0 to 0.015
0 to 0.0090
Iron (Fe), % 0 to 0.25
0 to 0.25
Molybdenum (Mo), % 0.6 to 1.2
6.5 to 7.5
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0 to 0.11
0 to 0.2
Silicon (Si), % 0.060 to 0.14
0
Tantalum (Ta), % 0
0 to 0.5
Tin (Sn), % 0.6 to 1.4
0
Titanium (Ti), % 88.1 to 93
84.9 to 88
Vanadium (V), % 0.6 to 1.4
0
Zirconium (Zr), % 0.6 to 1.4
0
Residuals, % 0 to 0.4
0