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Grade 1 Titanium vs. Titanium 6-7

Both grade 1 titanium and titanium 6-7 are titanium alloys. Both are furnished in the annealed condition. They have 87% of their average alloy composition in common. There are 27 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 grade 1 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, % 28
11
Fatigue Strength, MPa 170
530
Poisson's Ratio 0.32
0.33
Reduction in Area, % 36
29
Shear Modulus, GPa 39
45
Shear Strength, MPa 200
610
Tensile Strength: Ultimate (UTS), MPa 310
1020
Tensile Strength: Yield (Proof), MPa 220
900

Thermal Properties

Latent Heat of Fusion, J/g 420
410
Maximum Temperature: Mechanical, °C 320
300
Melting Completion (Liquidus), °C 1660
1700
Melting Onset (Solidus), °C 1610
1650
Specific Heat Capacity, J/kg-K 540
520
Thermal Expansion, µm/m-K 8.8
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 37
75
Density, g/cm3 4.5
5.1
Embodied Carbon, kg CO2/kg material 31
34
Embodied Energy, MJ/kg 510
540
Embodied Water, L/kg 110
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79
110
Resilience: Unit (Modulus of Resilience), kJ/m3 230
3460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
32
Strength to Weight: Axial, points 19
56
Strength to Weight: Bending, points 23
44
Thermal Shock Resistance, points 24
66

Alloy Composition


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Aluminum (Al), % 0
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 0.2
0 to 0.25
Molybdenum (Mo), % 0
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 0.18
0 to 0.2
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 99.095 to 100
84.9 to 88
Residuals, % 0 to 0.4
0