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Titanium 6-7 vs. ASTM B817 Type I

Both titanium 6-7 and ASTM B817 type I are titanium alloys. They have a moderately high 93% of their average alloy composition in common. There are 26 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 6-7 and the bottom bar is ASTM B817 type I.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
100
Elongation at Break, % 11
4.0 to 13
Fatigue Strength, MPa 530
360 to 520
Poisson's Ratio 0.33
0.32
Reduction in Area, % 29
5.0 to 29
Shear Modulus, GPa 45
40
Tensile Strength: Ultimate (UTS), MPa 1020
770 to 960
Tensile Strength: Yield (Proof), MPa 900
700 to 860

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 300
340
Melting Completion (Liquidus), °C 1700
1600
Melting Onset (Solidus), °C 1650
1550
Specific Heat Capacity, J/kg-K 520
560
Thermal Expansion, µm/m-K 9.3
9.6

Otherwise Unclassified Properties

Base Metal Price, % relative 75
36
Density, g/cm3 5.1
4.4
Embodied Carbon, kg CO2/kg material 34
38
Embodied Energy, MJ/kg 540
610
Embodied Water, L/kg 190
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
30 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 3460
2310 to 3540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 32
35
Strength to Weight: Axial, points 56
48 to 60
Strength to Weight: Bending, points 44
42 to 49
Thermal Shock Resistance, points 66
54 to 68

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
5.5 to 6.8
Carbon (C), % 0 to 0.080
0 to 0.1
Chlorine (Cl), % 0
0 to 0.2
Hydrogen (H), % 0 to 0.0090
0 to 0.015
Iron (Fe), % 0 to 0.25
0 to 0.4
Molybdenum (Mo), % 6.5 to 7.5
0
Niobium (Nb), % 6.5 to 7.5
0
Nitrogen (N), % 0 to 0.050
0 to 0.040
Oxygen (O), % 0 to 0.2
0 to 0.3
Silicon (Si), % 0
0 to 0.1
Sodium (Na), % 0
0 to 0.2
Tantalum (Ta), % 0 to 0.5
0
Titanium (Ti), % 84.9 to 88
87 to 91
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0
0 to 0.4